Publication

  • 2018
  • 2017
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  • 2015
  • 2014
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  • 2012
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  • 2005-2008
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  • 1983-1997
  1. Synthesis of a new class of cationic Pd (II) complexes with 1, 2, 3-triazol-5-ylidene ligand and their catalytic application in the conversion of internal alkynes to 1, 2-diketones. JB Shaik, V Ramkumar, S Sankararaman Journal of Organometallic Chemistry 860, 1-8,2018
  2. Group 4 metal complexes containing the salalen ligands: Synthesis, structural characterization and studies on the ROP of cyclic esters D Chakraborty, B Rajashekhar, M Mandal, V Ramkumar Journal of Organometallic Chemistry.
  3. Electron Precise Group 5 Dimetallaheteroboranes [{CpV (µ-EPh)} 2 {µ-?2: ?2-BH3E}] and [{CpNb (µ-EPh)} 2 {µ-?2: ?2-B2H4E}](E= S or Se) MG Chowdhury, SK Barik, K Saha, B Kirubakaran, Abhishek Banerjee, Venkatachalam Ramkumar, Sundargopal Ghosh Inorganic chemistry.
  1. Homoleptic Zr and Hf Complexes of Imino/Bis (imino) phenoxide Scaffolds: Synthesis, Structural Characterization and Their Catalytic Activity in the ROP of Cyclic Est… B Rajashekhar, M Mandal, D Chakraborty, V Ramkumar ChemistrySelect 2 (27), 8408-8417.
  2. Understanding the solvation behavior of tetramethylguanidinium based ionic liquids in dilute aqueous solutions through apparent molar properties I Das, B kumar Chennuri, V Ramkumar, RL Gardas Journal of Molecular Liquids 242, 129-136.
  3. High-spin iron (II) complexes of halides and pseudo-halides with biphenyl-appended N, N’-bidentate ligand: X-ray structural and spectroscopic studies KV Ramanaiah, V Ramkumar, NN Murthy Inorganica Chimica Acta 466, 197-204.
  4. Ring-opening copolymerization of maleic anhydride or L-Lactide with tert-butyl glycidyl ether by using efficient Ti and Zr benzoxazole-substituted 8-Hydroxyquinolina… S Pappuru, D Chakraborty, V Ramkumar, DK Chand Polymer 123, 267-281.
  5. Triamide macrocyclic chloride receptors via a one-pot tandem reduction–condensation–cyclization reaction H Behera, V Ramkumar, N Madhavan Organic & biomolecular chemistry 15 (23), 4937-4940.
  6. Bite-Angle-Regulated Coordination Geometries: Tetrahedral and Trigonal Bipyramidal in Ni (II) with Biphenyl-Appended (2-Pyridyl) alkylamine N, N’-Bidentate Lig… D Sasi, V Ramkumar, NN Murthy ACS Omega 2 (6), 2474-2481.
  7. 3-Benzylidene-1′-methyl-4′-phenyldispiro [cyclopentane-1, 3′-pyrrolidine-2′, 1”-acenaphthene]-2, 2”-dione E Varadharajan, V Ramkumar, MVB Scholastica, APT Augustine IUCrData 2 (4), x170581.
  8. Sulfamide-Lattice Restructuring To Form Dimensionally Controlled Molecular Arrays and Gel-Forming Systems SV Raghava, P Gopinath, BK Srivastava, V Ramkumar, … Chemistry-A European Journal 23 (15), 3658-3665.
  9. Nb and Ta benzotriazole or benzoxazole phenoxide complexes as catalysts for the ring-opening polymerization of glycidol to synthesize hyperbranched polyglycerols S Pappuru, D Chakraborty, V Ramkumar Dalton Transactions 46 (47), 16640-16654.
  1. Carbon-supported Co (III) dimer for oxygen reduction reaction in alkaline medium A Sheelam, S Mandal, T Thippani, V Ramkumar, K Ramanujam Ionics 22 (11), 2183-2194.
  2. Group 4 complexes of salicylbenzoxazole ligands as effective catalysts for the ring-opening polymerization of lactides, epoxides and copolymerization of e-caprolact… S Pappuru, D Chakraborty, JV Sundar, SK Roymuhury, V Ramkumar, … Polymer 102, 231-247.
  3. Zwitterionic Complexes of Group 4 Metal Chlorides Containing a Bis (imino) phenoxide Scaffold: Synthesis, Characterization and Polymerization Studies D Chakraborty, ER Chokkapu, M Mandal, RR Gowda, V Ramkumar ChemistrySelect 1 (16), 5218-5229.
  4. Synthesis of Fluorescent 1, 3-Diarylpropynones by Carbonylative Alkynylation Reaction Using (Phosphine)(1, 2, 3-triazol-5-ylidene) palladium Complexes as Catal… A Dasgupta, V Ramkumar, S Sankararaman European Journal of Organic Chemistry 2016 (28), 4817-4823.
  5. Highly Selective and Modular Synthesis of 3-Aryl-4-(arylethynyl)-2H-chromen-2-ones from 2-Iodoaryl 2-Arylacetates through a Carbonylative Sonogashira Coupli… A Chandrasekhar, V Ramkumar, S Sankararaman European Journal of Organic Chemistry 2016 (23), 4041-4049.
  6. New Trinuclear Complexes of Group 6, 8, and 9 Metals with a Triply Bridging Borylene Ligand K Yuvaraj, M Bhattacharyya, R Prakash, V Ramkumar, S Ghosh Chemistry-A European Journal 22 (26), 8889-8896.
  7. Zwitterionic niobium and tantalum complexes with bidentate aminophenol scaffolds: synthesis, structural characterization and use in the ring opening polymerization… SK Roymuhury, D Chakraborty, V Ramkumar RSC Advances 6 (54), 48816-48826.
  1. A mild and efficient method for the synthesis of structurally diverse 1, 2, 3-triazolylidene palladium (II) diiodo complexes. Comparison of catalytic activities for Suzuki–… B Sureshbabu, V Ramkumar, S Sankararaman Journal of Organometallic Chemistry 799, 232-238.
  2. Synthesis and structures of (-) menthyl and (+) neomenthyl substituted enantio pure bis (1, 2, 3-triazol-5-ylidene) PdI 2 complexes and PEPPSI type (1, 2, 3-triazol-5-… A Mohan, V Ramkumar, S Sankararaman Journal of Organometallic Chemistry 799, 115-121.
  3. Borate-based ligands with soft heterocycles and their ruthenium complexes DK Roy, R Borthakur, S Bhattacharyya, V Ramkumar, S Ghosh Journal of Organometallic Chemistry 799, 132-137.
  4. Aluminium complexes bearing N, O-aminophenol ligands as efficient catalysts for the ring opening polymerization of lactide SK Roymuhury, D Chakraborty, V Ramkumar European Polymer Journal 70, 203-214.
  5. Cation-Transporting Peptides: Scaffolds for Functionalized Pores? H Behera, V Ramkumar, N Madhavan Chemistry-A European Journal 21 (28), 10179-10184.
  6. Imino (phenoxide) compounds of magnesium: Synthesis, structural characterization, and polymerization studies S Ghosh, D Chakraborty, V Ramkumar Journal of Polymer Science Part A: Polymer Chemistry 53 (12), 1474-1491.
  7. Role of peripheral phenanthroline groups in the self-assembly of self-assembled molecular triangles MC Naranthatta, V Ramkumar, DK Chand Journal of Chemical Sciences 127 (2), 273-280.
  8. Nucleophilic difluoroalkylation of benzophenones, benzaldehydes and Schiff’s bases by tetrafluoroethyl ether and difluoroacetamide R Vaidyanathaswamy, GA Raman, V Ramkumar, R Anand Journal of Fluorine Chemistry 169, 38-49.
  9. A new class of MPV type reduction in group 4 alkoxide complexes of salicylaldiminato ligands: Efficient catalysts for the ROP of lactides, epoxides and polymerizatio… D Chakraborty, D Mandal, V Ramkumar, V Subramanian, JV Sundar Polymer 56, 157-170.
  10. Group 4 metal complexes of Trost’s semi-crown ligand: synthesis, structural characterization and studies on the ring-opening polymerization of lactides and e-caprola… B Rajashekhar, SK Roymuhury, D Chakraborty, V Ramkumar Dalton Transactions 44 (37), 16280-16293
  11. Synthesis and characterization of group 4 metal alkoxide complexes containing imine based bis-bidentate ligands: effective catalysts for the ring opening polymeriza… SK Roymuhury, D Chakraborty, V Ramkumar Dalton Transactions 44 (22), 10352-10367
  12. Zwitterionic group 4 aminophenolate catalysts for the polymerization of lactides and ethylene SK Roymuhury, D Chakraborty, V Ramkumar New Journal of Chemistry 39 (7), 5218-5230.
  13. Zr (iv) complexes containing salan-type ligands: synthesis, structural characterization and role as catalysts towards the polymerization of e-caprolactone, rac-lactide,… M Mandal, D Chakraborty, V Ramkumar RSC Advances 5 (36), 28536-28553
  14. Catalytic asymmetric hydrogenation using a [2.2] paracyclophane based chiral 1, 2, 3-triazol-5-ylidene–Pd complex under ambient conditions and 1 atmosphere of… A Dasgupta, V Ramkumar, S Sankararaman RSC Advances 5 (28), 21558-21561
  1. Crystal structure of 2, 4-bis (2-chlorophenyl)-7-tert-pentyl-3-azabicyclo [3.3. 1] nonan-9-one D H Park, V Ramkumar, P Parthiban Acta Crystallographica Section E: Structure Reports Online 70 (11), o1161-o1162
  2. ß-Tetrasubstituted meso-Tetra (4′-n-butylphenyl) porphyrins and Their Metal Complexes: Synthesis and Structural Properties P Bhyrappa, UK Sarangi, V Velkannan, V Ramkumar European Journal of Inorganic Chemistry 2014 (33), 5760-5770.
  3. C2-Symmetric normal and mesoionic bis-N-heterocyclic carbenes with biphenyl backbone. A comparison of bis (1, 2, 3-triazol-5-ylidene) and bis (imidazol-2-ylidene) ligands Sandip Guchhait , KeshabGhosh, B Sureshbabu, V.Ramkumar, S Sankararaman Journal of Organometallic Chemistry, 768, 68–74. (2014).
  4. 1′-Allyl-1-(3, 4-dimethylbenzoyl)-2-(4-methyl-1, 3-thiazol-5-yl)-1, 2, 5, 6, 7, 7a-hexahydrospiro [pyrrolizine-3, 3′-indolin]-2′-one V Karthikeyan, V.Ramkumar, R.J. Karunakaran Acta Cryst E70 (5), o541-o542. (2014).
  5. Metallaboranes from Metal Carbonyl Compounds and Their Utilization as Catalysts for Alkyne Cyclotrimerization. V.P Anju, S.K Barik, B Mondal, V.Ramkumar, S Ghosh ChemPlusChem 79 (4), 546-551. (2014).
  6. One-pot synthesis of self-assembled heteroleptic palladium (II) complexes with tmeda: An application of ligand exchange reactions S Bandi, NB Debata, V.Ramkumar, DK Chand Inorganic Chemistry Communications 39, 75-78. (2014).
  7. Facile base-free in situ generation and palladation of mesoionic and normal N-heterocyclic carbenes at ambient conditions B Sureshbabu, V.Ramkumar, S Sankararaman Dalton Trans., 43, 10710-10712 (2014).
  8. Two dimensional polydodecameric water-chloride cluster enfolding (Hg-Cl-Hg)+ concealed cascade cryptate A Pati, J Athilakshmi, V.Ramkumar, DK Chand CrystEngComm,16, 6827-6830. (2014).
  9. Substituent effect on the formation of helical to layered hydrogen bond networks in hydroxyl and carboxyl substituted 1-aryl-1 H-1, 2, 3-triazoles. B Sureshbabu, V.Ramkumar, S Sankararaman CrystEngComm, 16, 6098-6106. (2014).
  10. Regioselective opening of unsymmetrical cyclic anhydrides: synthesis of N-glycosylated isoasparagine and isoglutamine conjugates L Sahoo, A Singhamahapatra, V.Ramkumar, D Loganathan RSC Advances 4 (42), 22042-22047. (2014).
  11. Efficient and versatile catalysis of N-alkylation of heterocyclic amines with alcohols and one-pot synthesis of 2-aryl substituted benzazoles with newly designed ruthenium (ii) complexes of PNS thiosemicarbazones R Ramachandran, G Prakash, S Selvamurugan, P Viswanathamurthi, Jan Grzegorz Malecki and V.Ramkumar Dalton Transactions 43 (21), 7889-7902. (2014)
  12. Palladium (ii) induced complete conformational enrichment of the syn isomer of N, N’-bis (4-pyridylformyl) piperazine D Tripathy, H.S Sahoo, V.Ramkumar, D.K Chand RSC Advances 4 (36), 18595-18599. (2014).
  13. A molybdenum based metallomicellar catalyst for controlled and selective sulfoxidation reactions in aqueous medium. R Deepan Chakravarthy, V.Ramkumar and D Kumar Chand. Green Chemistry 16 (4), 2190-2196. (2014).
  14. Effect of distal sugars and interglycosidic linkage on the N-glycoprotein linkage region conformation: synthesis and X-Ray crystallographic investigation of ß-1-N-alkanamide derivatives of cellobiose and maltose as disaccharide analogs of the conserved chitobiosylasparagine linkage M Mathiselvam, V.Ramkumar, D Loganathan, S Pérez Glycoconjugate journal 31 (1), 71-87 (2014).
  1. Coordination polymers via self-assembly of silver (i) and cis-bis-nitrile-oxa-bowl derivatives P. Niranjana, A. Pati, S.K. Porwal, V. Ramkumar, S.J. Gharpure, D.K. Chand CrystEngComm 15 (45), 9623-9633. (2013)
  2. Group IV complexes containing the benzotriazole phenoxide ligand as catalysts for the ring-opening polymerization of lactides, epoxides and as precatalysts for the polymerization of ethylene S. Pappuru, E.R. Chokkapu, D. Chakraborty, V. Ramkumar. Dalton Transactions 42 (46), 16412-16427. (2013).
  3. Synthesis and structural characterization of cis isomer of 1, 2, 3-triazol-5-ylidene based palladium complexes R. Saravanakumar, V. Ramkumar, S. Sankararaman Journal of Organometallic Chemistry 736, 36-41 (2013).
  4. 2-[(E)-2-(4-Methoxyphenyl) ethenyl]-1-methylpyridinium iodide K Senthil, S Kalainathan, A RubanKumar, V. Ramkumar, J Podder Acta Cryst. E 69, o1848-o1848. (2013)
  5. Ethyl 2-amino-4-(4-methyl-1,3-thiazol-5-yl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carboxylate. V. Karthikeyan, V. Ramkumar & R. J. Karunakaran. Acta Cryst. E69, o1411-o1412. (2013).
  6. [mu]-(2,6-Bis{[3-(dimethylamino)propyl]iminomethyl}-4-methylphenolato)-[mu]-hydroxido-bis[(thiocyanato-[kappa]N)copper(II)]. M. G. Meera, P. K. Selvaraj, B. Viswanathan & V. Ramkumar . Acta Cryst. E69, m542-543, (2013).
  7. 2,2′-{[(1E,1’E)-(Cyclohexane-1,4-diyl)bis(azanylylidene)]bis(ethan-1-yl-1-ylidene)}diphenol. S. H. A. Lakshmi, M. Kandaswamy & V. Ramkumar. Acta Cryst. E69, o1593. (2013)
  8. Hypoelectronic Dimetallaheteroboranes of Group 6 Transition Metals Containing Heavier Chalcogen Elements: K. K V.Chakrahari, A.Thakur, B.Mondal, V.Ramkumar, S.Ghosh, Inorg. Chem., 2013, 52, 7923-7932.
  9. Chemistry of Homo and Heterometallic Bridged-Borylene Complexes: K. Yuvaraj, D. K. Roy, K. Geetharani, B. Mondal, V. P. Anju, P. Shankhari, V. Ramkumar, S. Ghosh, Organometallics., 2013, 32, 2705-2712.
  10. An Early-Late Transition Metal Hybrid Analog of Hexaborane(12): R. S. Anju, D. K. Roy, B. Mondal, V. Ramkumar, S. Ghosh, Organometallics., 2013, 32, 4618-4623.
  11. Synthesis and characterization of N-phenyl pyrrole anchored to Fischer carbene complex through ring closing metathesis oxidative aromatization and various aryl substituted Fischer carbene complexes. R Ganesamoorthi, A Thakur, D Sharmila, V Ramkumar, S Ghosh Journal of Organometallic Chemistry (2013). 726(15), 56-61.
  12. Imino phenoxide complexes of niobium and tantalum as catalysts for the polymerization of lactides, a-caprolactone and ethylene. Saha, Tanmoy Kumar; Mandal, Mrinmay; Thunga, Madhubabu; Chakraborty, Debashis; Ramkumar, Venkatachalam. Dalton Transactions. (2013). 42(28), 10304-10314.
  13. Imino phenoxide complexes of group 4 metals: synthesis, structural characterization and polymerization studies TK Saha, M Mandal, D Chakraborty, V Ramkumar New Journal of Chemistry, (2013) 37 (4), 949-960.
  14. 2, 4, 6, 8-Tetrakis (2-fluorophenyl)-3, 7-diazabicyclo [3.3. 1] nonan-9-one DH Park, V Ramkumar, P Parthiban Acta Cryst., E 69 (2), o179 (2013)
  15. (1E, 4E)-1, 5-Bis [2-(trifluoromethyl) phenyl] penta-1, 4-dien-3-one DH Park, V Ramkumar, P Parthiban Acta Cryst., E 69 (2), o177 (2013)
  16. Boron Beyond the Icosahedral Barrier: A 16-Vertex Metallaborane Roy, Dipak Kumar; Bose, Shubhankar Kumar; Anju, R. S.; Mondal, Bijan; Ramkumar, V.; Ghosh, Sundargopal. Angewandte Chemie International Edition, (2013), 52 (11), 3222-3226.
  17. Synthesis and Structural Characterization of cis Isomer of 1, 2, 3-Triazol-5-ylidene based Palladium Complexes R Saravanakumar, V Ramkumar, S Sankararaman Journal of Organometallic Chemistry, (2013), 736, 36-41.
  18. Synthesis and structure of trans-bis (1, 4-dimesityl-3-methyl-1, 2, 3-triazol-5-ylidene) palladium (II) dichloride and diacetate. Suzuki–Miyaura coupling of polybromoarenes with high catalytic turnover efficiencies JB Shaik, V Ramkumar, B Varghese, S Sankararaman Beilstein journal of organic chemistry, (2013), 9 (1), 698-704.
  19. Chemistry of Homo-and Heterometallic Bridged-Borylene Complexes K Yuvaraj, DK Roy, K Geetharani, B Mondal, VP Anju, P Shankhari, V Ramkumar, S Ghosh. Organometallics, (2013), 32 (9), 2705-2712.
  20. 1, 3-Bis (2-methylprop-2-enoyl)-1H-benzimidazol-2 (3H)-one N Haridharan, V Ramkumar Acta Cryst, E 69 (6), o818 (2013).
  21. Hypoelectronic Dimetallaheteroboranes of Group 6 Transition Metals Containing Heavier Chalcogen Elements KK Chakrahari, A Thakur, B Mondal, V Ramkumar, S Ghosh Inorganic Chemistry, (2013) 52 (14), 7923-7932.
  22. Toppled Molecular Domino Sets by Self-Assembly of Self-assembly: The p-Polymers D Tripathy, V Ramkumar, DK Chand Crystal Growth & Design 2013, 13(8), 3763-3772.
  1. 2,6-Bis(4-methoxyphenyl)-1,3-dimethylpiperidin-4-one O-benzyloxime. Park, Dong Ho; Ramkumar, V.; Parthiban, P. Acta Cryst., E 68, o524, (2012).
  2. 2,6-Bis(4-chlorophenyl)-1,3-dimethylpiperidin-4-one O-benzyloxime. Park, Dong Ho; Ramkumar, V.; Parthiban, P. Acta Cryst., E 68, o525, (2012).
  3. 2,4-Bis(2-bromophenyl)-7- tert-pentyl-3-azabicyclo[3.3.1]nonan-9-one. Park, Dong Ho; Ramkumar, V.; Parthiban, P. Acta Cryst., E 68, o2946, (2012).
  4. 2,4-Bis(4-ethoxyphenyl)-3-azabicyclo[3.3.1]nonan-9-one. Park, Dong Ho; Ramkumar, V.; Parthiban, P. Acta Cryst., E 68, o2841(2012)
  5. 2,4-Bis(4-ethoxyphenyl)-1-methyl-3-azabicyclo[3.3.1]nonan-9-one. Park, Dong Ho; Ramkumar, V.; Parthiban, P. Acta Cryst., E 68, o2999, (2012).
  6. Novel Class of Heterometallic Cubane and Boride Clusters Containing Heavier Group 16 Elements. Thakur, Arunabha; Sao, Soumik; Ramkumar, V.; Ghosh, Sundargopal. Inorganic Chemistry 2012, 51, 8322-8330.
  7. Synthesis and Characterization of Dianionic Hexacoordinate Silicon (IV) Complexes of Substituted Catechols, Flavones, and Fluorone: X-Ray Crystal Structures of [(n-C3H7) 2NH2] 2 [(Cl4C6O2) 3Si]• 3 CH3CN and [(n-C3H7) 2NH2] 2 [(Br4C6O2) 3Si]• 2 (CH3) 2SO A Doddi, JV Kingston, V Ramkumar, M Suzuki, M Hojo, MNS Rao Phosphorus, Sulfur, and Silicon and the Related Elements (2012), 187 (3), 343-356.
  8. Synthesis and Characterization of Novel Ruthenaferracarboranes from Photoinsertion of Alkynes into a Ruthenaferraborane. Geetharani, K.; Ramkumar, V.; Ghosh, Sundargopal. Organometallics,(2012), 31, 6381-6387.
  9. 2,4-Bis(2-ethoxyphenyl)-3-azabicyclo[3.3.1]nonan-9-one. Park, Dong Ho; Ramkumar, V.; Parthiban, P. Acta Crysta, E 68, o3282,(2012).
  10. Novel Class of Heterometallic Cubane and Boride Clusters Containing Heavier Group 16 Elements. Thakur, Arunabha; Sao, Soumik; Ramkumar,V.; Ghosh, Sundargopal. Inorganic Chemistry 51 (15), 2012. 8322-8330
  11. 2,4-Bis(4-ethoxyphenyl)-7-methyl-3-azabicyclo[3.3.1]nonan-9-one. Park, Dong Ho; Ramkumar, V.; Parthiban, P. Acta Cryst, E 68 o779-o780, (2012).
  12. N, N’-(1,4-Phenylene)bis(2-bromo-2-methylpropanamide). Haridharan, N.; Ramkumar, V.; Dhamodharan, R. Acta Cryst, E 68, o811.(2012).
  13. A close-packed boron-rich 11-vertex molybdaborane with novel geometry. Chakrahari, Kiran Kumar Varma; Thakur, Arunabha; Mondal, Bijan; Dhayal, Rajendra Singh; Ramkumar, V.; Ghosh, Sundargopal. Journal of Organometallic Chemistry, 710, 2012. 75-79.
  14. 2,4,6,8-Tetrakis(4-chlorophenyl)-3,7-diazabicyclo[3.3.1]nonan-9-one O-benzyloxime acetone monosolvate. Park, Dong Ho; Ramkumar, V.; Parthiban, P. Acta Cryst. E 68, o1481-o1481, ( 2012).
  15. Synthesis and Structure of Dirhodium Analogue of Octaborane-12 and Decaborane-14. Roy; Bose, Shubhankar Kumar; Anju, R. S.; Ramkumar, V.; Ghosh, Sundargopal. Inorganic Chemistry, 51(20), 2012. 10715-10722.
  16. Consequence of Presence and Absence of �-Clouds at Strategic Locations of Designed Binuclear Pd(II) Complexes on Packing: Self-Assembly of Self-Assembly by Intermolecular Locking and Packing. Naranthatta, Mili C.; Das, Deepika; Tripathy, Debakanta; Sahoo, Himansu S.; Ramkumar, Venkatachalam; Chand, Dillip K.Crystal Growth & Design, 12 (12), 2012. 6012-6022
  17. 2,6-Bis(4-methoxyphenyl)-1,3-dimethylpiperidin-4-one O-benzyloxime. D. H. Park, V. Ramkumar & P. Parthiban Acta Cryst. E68, o524. (2012).
  18. 2,6-Bis(4-chlorophenyl)-1,3-dimethylpiperidin-4-one O-benzyloxime. D. H. Park, V. Ramkumar & P. Parthiban . Acta Cryst. E68, o525. (2012.)
  19. N,N’-(1,4-Phenylene)bis(2-bromo-2-methylpropanamide). N. Haridharan, V. Ramkumar & R. Dhamodharan . Acta Cryst. E68, o811. (2012).
  20. 2,4-Bis(4-ethoxyphenyl)-7-methyl-3-azabicyclo[3.3.1]nonan-9-one. D. H. Park, V. Ramkumar & P. Parthiban. Acta Cryst. E68, o779-o780. (2012).
  21. 2,4,6,8-Tetrakis(4-chlorophenyl)-3,7-diazabicyclo[3.3.1]nonan-9-one O-benzyloxime acetone monosolvate. D. H. Park, V. Ramkumar & P. Parthiban. Acta Cryst. E68, o1481. (2012)
  22. 2,4-Bis(2-bromophenyl)-7-tert-pentyl-3-azabicyclo[3.3.1]nonan-9-one. D. H. Park, V. Ramkumar & P. Parthiban . Acta Cryst. E68, o2946. (2012)
  23. 2,4-Bis(4-ethoxyphenyl)-3-azabicyclo[3.3.1]nonan-9-one. D. H. Park, V. Ramkumar & P. Parthiban . Acta Cryst. E68, o2841. (2012)
  24. 2,4-Bis(4-ethoxyphenyl)-1-methyl-3-azabicyclo[3.3.1]nonan-9-one. D. H. Park, V. Ramkumar & P. Parthiban Acta Cryst. E68, o2999. (2012)
  1. 1,1′-binaphthyl-2,2′-diyl benzylphosphoramidate Ravikumar R Gowda, Venkatachalam Ramkumar and Debashis Chakraborty Acta Cryst., E67(12), o3310, (2011).
  2. Controlled Hydrolysis of [Ti(O–2,4,6-Br3C6H2)2(O-iPr)2]2: synthesis, structural characterization and studies on bulk polymerization of cyclic esters and lactide. Ravikumar R. Gowda, Debashis Chakraborty, Venkatachalam Ramkumar Inorg. Chem. Communn., (2011), 14, 1777-1782.
  3. Synthesis, Structure and Characterization of Dimolybdaheteroboranes Rajendra Singh Dhayal, V. Ramkumar, Sundargopal Ghosh Polyhedron, (2011), 30 (12), 2062-2066.
  4. New Chiral Molybdenum Complex Catalyzed Sulfide Oxidation with Hydrogen Peroxide Rajan Deepan Chakravarthy, Kotapati Suresh, Venkatachalam Ramkumar & Dillip Kumar Chand Inorganica Chimica Acta (2011), 376 (1), 57-63.
  5. 3-(9H-Carbazol-9-yl)propan-1-ol N.Haridharan, V. Ramkumar & R.Dhamodharan Acta Cryst., E67(1), o180, (2011).
  6. Synthesis and Structure of 1,4-Diphenyl-3-methyl-1,2,3-triazol-5-ylidene Palladium Complexes and Application in Catalytic Hydroarylation of Alkynes Rajendran Saravanakumar, Venkatachalam Ramkumar & Sethuraman Sankararaman Organometallics (2011), 30(6), 1689-1694.
  7. 2,4-Bis(4-butoxyphenyl)-3-azabicyclo[3.3.1]nonan-9-one P. Parthiban, V. Ramkumar & Y. T. Jeong Acta Cryst., E67(3), o635, (2011).
  8. Salen Complexes of Zirconium and Hafnium: Synthesis, Structural Characterization, Controlled Hydrolysis, and Solvent-Free Ring-Opening Polymerization of Cyclic Esters and Lactides Tanmoy kumar saha,Venkatachalam Ramkumar & Debashis Chakraborty, Inorganic Chemistry (2011), 50(7), 2720-2722.
  9. 2,4-Bis(4-propoxyphenyl)-3-azabicyclo[3.3.1]nonan-9-one P. Parthiban, V. Ramkumar & Y. T. Jeong Acta Cryst.E67(4), o790, (2011).
  10. A model study of alternative approach toward a class of palladium(II) based self-assembly Niladri B. Debata, V. Ramkumar & Dillip Kumar Chand Inorganica Chimica Acta (2011), 372(1), 71-78.
  11. Phosphoroamidate compounds of 1,1′-Bi-2-naphthol: Synthesis, structural characterization and solvent-free ring-opening polymerization of e-caprolactone and L-lactide Ravikumar R. Gowda, Debashis Chakraborty, Venkatachalam Ramkumar Inorganica Chimica Acta (2011), 372(1), 88-93.
  12. 2,4-Bis(2-ethoxyphenyl)-7-methyl-3-azabicyclo[3.3.1]nonan-9-one P. Parthiban, V. Ramkumar, Dong Ho Park & Y. T. Jeong Acta Cryst. E67(6), o1475-o1476, (2011).
  13. Aryloxy and benzyloxy compounds of zirconium: synthesis, structural characterization and studies on solvent-free ring opening polymerization of e-caprolactone and d-valerolactone. Ravikumar R. Gowda, Debashis Chakraborty, Venkatachalam Ramkumar Journal of Organometallic Chemistry,2011, 696(2), 572-580.
  14. Synthesis and Molecular Structure of Sulfur Containing Cobalt Compounds Vaibhave Aggarwal, V. Ram Kumar and Udai P. Singh Journal of Chemical Crystallography,2011, 41 (2), 121-126.
  1. p-Tolylmethanaminium cyclohexane-1,2-diyl phosphate Ravikumar R Gowda, Venkatachalam Ramkumar and Debashis Chakraborty Acta Cryst. E66(12), o3049, (2010)
  2. Multi-chelation approach towards natural product-like skeletons: one-pot access to a nitrogen-containing tetracyclic framework from AlaAla dipeptide Kasipandi Vellaisamy, John Victor Napoleon, Ramkumar Venkatachalam and Muraleedharan Kannoth Manheri Chem. Commun., 2010, 46, 9212-9214
  3. 2,4-Bis(2-methylphenyl)-3-azabicyclo-[3.3.1]nonan-9-one O-methyloxime. P. Parthiban, V. Ramkumar & Y. T. Jeong Acta Cryst. E66, o2978, (2010).
  4. 3-Benzoyl-1-methyl-4-phenylspiro-[acenaphthylene-1(2H),2-pyrrolidin]-2- one. T.Augustine, Scholastica Mary Vithiya, S. Ignacimuthu & V. Ramkumar Acta Cryst. E66, o3002, (2010).
  5. 2-Bromo-2-methyl-N-(4-methyl-2-oxo-2H-chromen-7-yl)propanamide N. Haridharan, V. Ramkumar and R. Dhamodharan Acta Cryst. E66, o2007, (2010).
  6. Exploration of Novel Pyrene Labeled Amphiphilic Block Copolymers: Synthesis Via ATRP, Characterization and Properties Neelamegan Haridharan, Venkatachalam Ramkumar, Raghavachari Dhamodharan Journal of Macromolecular Science, Part A, 47, 9, 918 – 926 (2010).
  7. Exploration of Novel Pyrene Labeled Amphiphilic Block Copolymers: Synthesis Via ATRP, Characterization and Properties Neelamegan Haridharan, Venkatachalam Ramkumar, Raghavachari Dhamodharan Journal of Macromolecular Science, Part A, 47, 9, 918 – 926 (2010).
  8. Stereocontrolled facile synthesis and antimicrobial activity of oximes and oxime ethers of diversely substituted bispidines Paramasivam Parthiban, Senthamaraikannan Kabilan, Venkatachalam Ramkumar, Yeon Tae Jeong Bioorganic & Medicinal Chemistry Letters, 20,( 22), 6452-6458, (2010).
  9. Aryloxy and benzyloxy compounds of hafnium: Synthesis, structural characterization and studies on solvent-free ring-opening polymerization of e-caprolactone and d-valerolactone. Ravikumar R. Gowda, Debashis Chakraborty, Venkatachalam Ramkumar Polymer 51 (2010) 4750-4759.
  10. Coordination driven self-assembly in a single pot Niladri B. Debata, Debakanta Tripathy, V. Ramkumar, Dillip Kumar Chand Tetrahedron Letters, 51, (33), 4449-4451, (2010).
  11. 2,4,6-Trimethyl-3,5-bis[(phenylcarbonothioyl)sulfanylmethyl]benzyl benzenecarbodithioate. M. Kannan, V. Ramkumar & R. Dhamodharan Acta Cryst. E66, o1382, (2010).
  12. Triethylammonium 1,1′-binaphthyl-2,2′-diyl phosphate. R. R. Gowda, V. Ramkumar & D. Chakraborty . Acta Cryst. E66, o1625, (2010).
  13. 2-Oxo-4-trifluoromethyl-2H-chromen-7-yl 2-bromo-2-methylpropanoate. N. Haridharan, V. Ramkumar & R. Dhamodharan. Acta Cryst. E66, o1606, (2010).
  14. (N1E,N2E)-N1,N2-Bis(4-hexyloxy-3-methoxybenzylidene)ethane-1,2-diamine. Paul, S. S. Punnoose, N. L. Mary, T. Narasimhaswamy & V. Ramkumar Acta Cryst. E66, o1377. (2010).
  15. New Phosphoroamidate compounds: Synthesis, structural characterization and studies of ZnCl2 assisted hydrolysis of the P-N bond. Malik, P., Chakraborty, D., Ramkumar, V. Polyhedron, 29, 2142-2148, (2010).
  16. Bis(imino)phenoxide complexes of zirconium: Synthesis, structural characterization and solvent -free ring-opening polymerization of cyclic esters and lactides. Saha, T.K., Rajashekhar, B., Gowda, R.R., Ramkumar, V., Chakraborty, D. Dalton Transactions, 39(21), 5091-5093, (2010).
  17. Trans – ß2,3-amino acid-based supramolecular synthons for probing the interrelationships between structures, torsion-directed assembly and isomorphism. Balamurugan, D., Ramkumar, V., Muraleedharan, K.M. Crystal Growth and Design, 10(6), 2460-2464, (2010).
  18. Spectroscopic studies and crystal structure of 1-(morpholino (phenyl) methyl ) pyrrolidine-2,5-dione. Rajeswari S; Venkatesa Prabhu G; Tamilvendan D; V.Ramkumar Journal of Chemical Crystallography, 40(5), 437- 442, (2010).
  19. Chemistry of Vanadaboranes: Synthesis, Structures and Charanterization of Organ vanadium Sulfide Clusters with Disulfido linkage. Bose, S.K.; Geetharani, K; Ramkumar.V.; Varghese B; Ghosh, Sundargopal. Inorg.Chem, 2010, 49(6), 2881-2888, (2010).
  20. 2,4-Bis(2-fluorophenyl)-1-methyl-3-azabicyclo[3.3.1]nonan-9-one. P. Parthiban, V. Ramkumar & Y. T. Jeong Acta Cryst. E66, o194-o195, (2010).
  21. 2,4-Bis(4-chlorophenyl)-1-methyl-3-azabicyclo[3.3.1]nonan-9-one. P. Parthiban, V. Ramkumar & Y. T. Jeong Acta Cryst. E66, o545, (2010).
  22. 2,4-Bis(3-methoxyphenyl)-3-azabicyclo[3.3.1]nonan-9-one. P. Parthiban, V. Ramkumar & Y. T. Jeong Acta Cryst. E66, o48-o49, (2010).
  23. Stereospecific synthesisof oximes and oxime ethers of 3-azabicycles:A SAR study towards antimicrobial agents. Paramasivam Parthiban, Paramasivam Rathika, Venkatachalam Ramkumar, Se Mo Son, Yen Tae Jeong Bioorganic & Medicinal Chemistry Letters, 20(5), 1642-1647, (2010).
  1. 2,4-Bis(2-bromophenyl)-3-azabicyclo[3.3.1]nonan-9-one P.Parthiban, V.Ramkumar, M.S.Kim, K.T.Lim and Y.T.Jeong Acta Cryst. E64, o2385, (2008).
  2. 2,4-Bis(3-bromophenyl)-3-azabicyclo[3.3.1]nonan-9-one P.Parthiban, V.Ramkumar, M.S.Kim, K.T.Lim and Y.T.Jeong Acta Cryst. E64, o2332, (2008).
  3. 3-Benzylidene-6-methoxychroman-4-one T. Augustine, Scholastica Mary Vithiya, V. Ramkumar and Charles C.Kanakam Acta Cryst. E64, o2080, (2008).
  4. 6-Formyl-2-methoxy-3-nitrophenyl 4-toluenesulfonate G. Ramachandran, R. Suresh, S. Sreedevi, Charles C Kanakam and V.Ramkumar Acta Cryst.. E64, o2046, (2008)
  5. 2,4-Bis(4-fluorophenyl)-3-azabicyclo[3.3.1]nonan-9-one P.Parthiban, V.Ramkumar, H.D.Santan, J.T.Kim and Y.T.Jeong Acta Cryst. E64, o1710, (2008).
  6. 2,4-Bis(3-fluorophenyl)-3-azabicyclo[3.3.1]nonan-9-one P.Parthiban, K. Thirumurugan, V.Ramkumar, S.Pazhamalai and Y.T.Jeong Acta Cryst. E64, o1708-o1709, (2008).
  7. r-2,c-6-Bis(3-methoxyphenyl)-t-3,t-5-dimethylpiperidin-4-one P.Parthiban, V.Ramkumar, N.A.Kumar, J.S.Kim and Y.T.Jeong Acta Cryst. E64, o1631, (2008).
  8. 2,4-Bis(2-chlorophenyl)-3-azabicyclo[3.3.1]nonan-9-one P.Parthiban, V.Ramkumar, M.S.Kim, K.T.Lim and Y.T.Jeong Acta Cryst. E64, o1586, (2008).
  9. 1′-Methyl-4′-phenylacenaphthene-1-spiro-2′-pyrrolidine-3′-spiro-3”- benzo[ g]chroman-2,4”-dione T. Augustine, V. Ramkumar and Charles C. Kanakam Acta Cryst. E63, o4717, (2007).
  10. r-2,c-6-Bis(3-fluorophenyl)-t-3,t-5-dimethylpiperidin-4-one. R. Ramachandran, P. Parthiban, A. Doddi, V. Ramkumar & S. Kabilan, Acta Cryst. E63, o4559, (2007).
  11. r-2,c-6-Bis(4-bromophenyl)-t-3,t-5-dimethyltetrahydropyran-4-one. P. Parthiban, S. Umamatheswari, A. Doddi, V. Ramkumar & S. Kabilan, Acta Cryst. E63, o4373, (2007).
  12. cis-Bis(benzylmethylphenylphosphine- P)tetracarbonylmolybdenum(0) A.Doddi, T. A. Luiz, V. Ramkumar & M. N. S. Rao Acta Cryst. E63, m2727, (2007).
  13. 6”-Methoxy-1′-methyl-4′-phenylacenaphthene-1-spiro-2′-pyrrolidine-3′-spiro-3”-chroman-2,4”-dione. T. Augustine, V. Ramkumar, S. Arul Antony & C. C. Kanakam Acta Cryst. E63, o4412, (2007).
  14. 6-Methoxy-1′-methyl-4′-phenylchroman-3-spiro-3′-pyrrolidine-2′-spiro-3”(2”H)- indole-2”,4-dione. T. Augustine, C. C. Kanakam, R. Suresh, Y. Christurajan & V. Ramkumar Acta Cryst. E63, o3794, (2007).
  15. 1-[(2,5-Dioxopyrrolidin-1-yl)(phenyl)methyl]urea. S. Rajeswari, G. Venkatesa Prabhu, K. Krishnakumar, V. Ramkumar & B. Varghese, Acta Cryst. E63, o2929, (2007).
  16. An Internal standardization procedure for Spectrally resolved Fluorescence Life Imaging Microscope (sFLIM). Quentin Hanley and V.Ramkumar Applied Spectroscopy, 59 [2] 261-266, (2005).
  1. Fine-Tunning of Metalloborane Geometries: Chemistry of Metallaboranes of Early Transistion Metalsderived from Metal halides and Monoborane reagents. Bose, S.K.; Geetharani, K; Ramkumar.V.; Mobin, S,K; Ghosh, Sundargopal. Chem. Eur. J., 15, 13483-13490, (2009).
  2. Synthesis, stereochemistry and antimicrobial studies of novel oxime ethers of aza/diazabicycles Paramasivam Parthiban, Gopalakrishnan Aridoss, Paramasivam Rathika, Venkatachalam Ramkumar, Senthamaraikannan Kabilan Bioorganic & Medicinal Chemistry Letters, 19, 6981-6985, (2009).
  3. As many as six tandem reactions in one step! Unprecedented formation of highly functionalized benzothiophenes Pushparathinam Gopinath , Surapaneni Nilaya , Tripathy Ranjan Debi , Venkatachalam Ramkumar and Kannoth Manheri Muraleedharan Chem. Commun., (46), 7131-7133, (2009).
  4. A new synthetic route to Lindqvist type clusters [(n-Bu4N)x][M’M5O19] [when x = 2, M’= M = Mo or W; x = 3, M’= Mo, M = W] from metal carbonyl precursors [(CO)5ML] [M = Mo, W; L= CO, C(OMe)(Me)] Thakur, A., Chakraborty, A., Ramkumar, V., Ghosh, Sundargopal . Dalton Trans., (36), 7552-7558, (2009).
  5. A facile entry into a novel class of dispiroheterocyclic framework through 1, 3-dipolarcycloaddition of azomethine ylides with 3-arylidene-4-chromanones as dipolarophiles. Augustine A.P.T., Charles C Kanakam., Scholastica Mary vithiya., V.Ramkumar Tetrahedron Letters , 50, 5906-5909, (2009).
  6. 1-Methyl-2,4-Bis(2-methoxyphenyl)-3-azabicyclo[3.3.1]nonan-9-one. P. Parthiban, V. Ramkumar & Y. T. Jeong Acta Cryst. E65, o3103, (2009).
  7. 2,4-Bis(2-fluorophenyl)-3-azabicyclo[3.3.1]nonan-9-one. P. Parthiban, V. Ramkumar & Y. T. Jeong Acta Cryst. E65, o1596, (2009).
  8. New Aryloxy and Benzyloxy Derivatives of Titanium as Catalysts for Bulk Ring-Opening Polymerization of -Caprolactone and -Valerolactone Ravikumar R. Gowda, Debashis Chakraborty, Venkatachalam Ramkumar Euro. J. Inorg. Chem., 20, 2981-2993, ( 2009).
  9. Chlorinated Hypoelectronic Dimetallaborane Clusters: Synthesis, Characterization and Electronic Structures of (5-C5Me5W)2B5HnClm (n = 7, m = 2 and n = 8, m = 1): Sahoo, S., Reddy. K. H. K., Dhayal, R. S., Mobin, S. K., Ramkumar, V., Jemmis, E. D., Ghosh, Sundargopal Inorg. Chem., 48 (14), 6509–6516, (2009).
  10. B-Alkylation and Arylation of (ç5-C5Me5Mo)2B5H9: Synthesis and Characterization of Isomeric (e5-C5Me5Mo)2B5H9-nRn (When R = n-Bu, n = 2, 1; R = Ph, n = 2, 1): Dhayal, R. S., Chakrahari, K. K. V., Ramkumar, V., Ghosh, Sundargopal J. Cluster Sci. 20, 565 –572, (2009).
  11. An Efficient Route to Group 6 and 8 Metallaborane Compounds: Synthesis of arachno- [Cp*Fe(CO)B3H8] and closo-[(Cp*M)2B5H9] (M = Mo, W). Geetharani, K.; Bose, S. K.; Pramanik, G., Saha, T. K.; Ramkumar, V.; Ghosh, Sundargopal Euro. J. Inorg. Chem., 11, 1483-1487, ( 2009).
  12. Synthesis, spectral, crystal and antimicrobial studies of biologically potent oxime ethers of nitrogen, oxygen and sulfur heterocycles Paramasivam Parthiban, Gopalakrishnan Aridoss, Paramasivam Rathika, Venkatachalam Ramkumar, Senthamaraikannan Kabilan. Bioorganic & Medicinal Chemistry Letters, 19, 2981–2985, (2009).
  13. 2,4-Bis(4-bromophenyl)-3-azabicyclo[3.3.1]nonan-9-one. P. Parthiban, V. Ramkumar, S. Amirthaganesan & Y. T. Jeong Acta Cryst. E65, o1356,(2009)..
  14. 2,4-Bis(2-methoxyphenyl)-3-azabicyclo[3.3.1]nonan-9-one P. Parthiban, V. Ramkumar, M. S. Kim, S. M. Son & Y. T. Jeong Acta Cryst. E65, o1383,(2009).
  15. 2,4-Bis(3-chlorophenyl)-3-azabicyclo[3.3.1]nonan-9-one. P. Parthiban, V. Ramkumar, H. D. Santan, J. T. Kim & Y. T. Jeong Acta Cryst. E65, o840,(2009)..
  16. 2,4-Bis(4-chlorophenyl)-3-azabicyclo[3.3.1]nonan-9-one P. Parthiban, V. Ramkumar, M. S. Kim, S. Kabilan and Y. T. Jeong Acta Cryst. E65, o609, (2009).
  17. N-[Morpholino(phenyl)methyl]benzamide L. Muruganandam, S. Rajeswari, D. Tamilvendan, V. Ramkumar and G. V. Prabhu Acta Cryst. E65, o578, (2009).
  18. Substitution at Boron in Molybdaborane Frameworks: Synthesis and Characterization of Isomeric (h5-C5Me5Mo)2B5HnXm (when X = Cl: n = 5, 7, 8; m = 4, 2, 1 and X = Me: n = 6, 7; m = 3, 2) Rajendra S Dhayal, Satyanarayan Sahoo, V Ramkumar and Sundargopal Ghosh. Journal of Organometallic Chemistry, 694, 237�243, (2009) .
  19. Spectroscopic studies and crystal structure of 1-[(2,5-dioxopyrrolidin-1-yl)(phenyl) methyl] thio urea Rajeswari S, Venkatesa Prabhu G, Tamilvendan D, V.Ramkumar Journal of Chemical Crystallography, 39, 650–654, (2009).
  1. Effect of interlayer anion on the Physicochemical properties of Zinc aluminium hydrotalcites S.Velu, V.Ramkumar, A.Narayanan and C.S.Swamy, Journal of Material Science, 32, (1997), 957.
  2. Reaction of Piperidine with Formaldehyde over Alumina Catalysts, U.Kameswari, A.Narayanan, V.Ramkumar and Dorothy Samuel, Selected studies in Heterogenous Catalysis, May 1996. Edited by Dr.B.Viswanathan.
  3. Synthesis and physicochemical properties of cobalt aluminium hydrotalcite, S.Kannan, S.Velu, V.Ramkumar and C.S.Swamy, Journal of Material Science, 30(1995), 1462-1468.
  4. “Circuit Idea”, Supply failure Indicator, V.Ramkumar, Electronic For You, May (1983), 82.