• Publication
  1. Synthesis and characterization of group 4 metal alkoxide complexes containing imine based bis-bidentate ligands: effective catalysts for the ring opening polymerization of lactides, epoxides and polymerization of ethylene
    SK Roymuhury, D Chakraborty, V.Ramkumar
    Dalton Transactions. 44(22), 10352-10367

  2. Group 4 metal complexes of Trost’s semi-crown ligand: synthesis, structural characterization and studies on the ring-opening polymerization of lactides and e-caprolactone
    B Rajashekhar, SK Roymuhury, D Chakraborty, V.Ramkumar
    Dalton Transactions 44 (37), 16280-16293

  3. 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

  4. Cation-Transporting Peptides: Scaffolds for Functionalized Pores?
    H Behera, V.Ramkumar, N Madhavan
    Chemistry–A European Journal 21 (28), 10179-10184

  5. 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

  6. 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

  7. 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-ylidene)(pyridine) PdI 2 complexes. Comparison of catalytic activities for C–C coupling
    A Mohan, V.Ramkumar, S Sankararaman
    Journal of Organometallic Chemistry 799, 115-121

  8. 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–Miyaura coupling
    B Sureshbabu, V.Ramkumar, S Sankararaman
    Journal of Organometallic Chemistry 799, 232-238

  9. Zwitterionic group 4 aminophenolate catalysts for the polymerization of lactides and ethylene
    Sagnik Kumar Roymuhury , Debashis Chakraborty and V.Ramkumar
    New Journal of Chem., 2015.

  10. Catalytic asymmetric hydrogenation using [2.2]paracyclophane based chiral 1,2,3-triazol-5-ylidene-Pd complex under ambient conditions and 1 atmosphere of H2
    Ayan Dasgupta, V.Ramkumar, Sethuraman Sankararaman
    RSC Advances, 2015,5, 21558-21561.

  11. Zr(IV) complexes containing salan-type ligands: Synthesis, structural characterization and role as catalysts towards the polymerization of
    e-caprolactone, rac-lactide, ethylene, homopolymerization and copolymerization of epoxides with CO2
    Mrinmay Mandal, Debashis Chakraborty, V.Ramkumar
    RSC Advances, 2015, 5(36), 28536–28553.

  12. Nucleophilic difluoroalkylation of benzophenones, benzaldehydes and Schiff’s bases by tetrafluoroethyl ether and difluoroacetamide.

    R. Vaidyanathaswamy, G. Anantha Raman, V.Ramkumar, Rajdeep Anand
    Journal of Fluorine Chemistry, Volume 169, January 2015, Pages 38-49

  13. Imino(phenoxide) Compounds of Magnesium: Synthesis, Structural Characterization, and Polymerization Studies
    Swarup Ghosh, Debashis Chakraborty,V.Ramkumar
    Journal of Polymer science, Part A: Polymer Chemistry, 2015 53, 1474–1491

  14. A new class of MPV type reduction in group 4 alkoxide complexes of salicylaldiminato ligands: Efficient catalysts for the ROP of lactides, epoxides and polymerization of ethylene
    Debashis Chakraborty, Dipa Mandal, V.Ramkumar, V Subramanian, JV Sundar
    Polymer 2015, 56, 157-170

  15. Peptide Turns Through Just ‘One Atom’! Sulfamide Group Nucleates Folding and Stabilizes New supramolecular Topologies in Short Peptides
    Gopinath P,  V.Ramkumar and K.M.Muraleedharan
    Cryst. Engg. Comm., 16, 10371-10375 (2014) 

     

  16. 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, 33, 5760-5770, (2014)

  17. Crystal structure of 2, 6-bis (2, 5-dimethoxyphenyl)-3, 5-dimethylpiperidin-4-one.
    D.H.Park, V.Ramkumar, P Parthiban
    Acta Cryst E70 (11), o1160. (2014).

  18. 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 Cryst E70 (11), o1161-o1162. (2014).

  19. 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).

  20. 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).

  21. 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).

  22. 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)

  23. 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).

  24. 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)

  25. 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).

  26. 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).

  27. 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).

  28. 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).

  29. 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).

  30. 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).

  31. 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)

  32. 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).

  33. 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).

  34. Synthesis and structural characterization of< i> cis</i> isomer of 1, 2, 3-triazol-5-ylidene based palladium complexes
    R Saravanakumar, V. Ramkumar, S Sankararaman
    Journal of Organometallic Chemistry 736, 36-41

  35. 2-[(E)-2-(4-Methoxyphenyl) ethenyl]-1-methylpyridinium iodide
    K Senthil, S Kalainathan, A RubanKumar, V Ramkumar, J Podder
    Acta Cryst. E: 69 (12), o1848-o1848

  36. [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).

  37. 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)

  38. 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.

  39. 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.

  40. 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.

  41. 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

  42. 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.

  43. 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.

  44. 2, 4, 6, 8-Tetrakis (2-fluorophenyl)-3, 7-diazabicyclo [3.3. 1] nonan-9-one
    D H Park, V Ramkumar, P Parthiban
    Acta Cryst., E 69 (2), o179 (2013)

  45. (1E, 4E)-1, 5-Bis [2-(trifluoromethyl) phenyl] penta-1, 4-dien-3-one
    D H Park, V Ramkumar, P Parthiban
    Acta Cryst., E 69 (2), o177 (2013)

  46. 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.

  47. 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.

  48. 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.

  49. 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.

  50. 1, 3-Bis (2-methylprop-2-enoyl)-1H-benzimidazol-2 (3H)-one
    N Haridharan, V Ramkumar
    Acta Cryst, E 69 (6), o818 (2013).

  51. 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.

  52. 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.

  53. 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).

  54. 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).

  55. 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).

  56. 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)

  57. 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).

  58. 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.

  59. 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.

  60. Synthesis and Characterization of Novel Ruthenaferracarboranes from Photoinsertion of Alkynes into a Ruthenaferraborane.
    Geetharani, K.; Ramkumar, V.; Ghosh, Sundargopal.
    Organometallics,(2012), 31, 6381-6387.

  61. 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).

  62. 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

  63. 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).

  64. N, N’-(1,4-Phenylene)bis(2-bromo-2-methylpropanamide).
    Haridharan, N.; Ramkumar, V.; Dhamodharan, R.
    Acta Cryst, E 68, o811.(2012).

  65. 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.

  66. 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).

  67. 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.

  68. 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

  69. 2,6-Bis(4-methoxyphenyl)-1,3-dimethylpiperidin-4-one O-benzyloxime.
    D. H. Park, V. Ramkumar & P. Parthiban
    Acta Cryst. E68, o524. (2012).

  70. 2,6-Bis(4-chlorophenyl)-1,3-dimethylpiperidin-4-one O-benzyloxime.
    D. H. Park, V. Ramkumar & P. Parthiban .
    Acta Cryst. E68, o525. (2012.)

  71. N,N’-(1,4-Phenylene)bis(2-bromo-2-methylpropanamide).
    N. Haridharan, V. Ramkumar & R. Dhamodharan .
    Acta Cryst. E68, o811. (2012).

  72. 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).

  73. 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)

  74. 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)

  75. 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)

  76. 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)

  77. 1,1′-binaphthyl-2,2′-diyl benzylphosphoramidate
    Ravikumar R Gowda, Venkatachalam Ramkumar and Debashis Chakraborty
    Acta Cryst., E67(12), o3310, (2011).

  78. 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.

  79. Synthesis, Structure and Characterization of Dimolybdaheteroboranes
    Rajendra Singh Dhayal, V. Ramkumar, Sundargopal Ghosh
    Polyhedron, (2011), 30 (12), 2062-2066

  80. 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.

  81. 3-(9H-Carbazol-9-yl)propan-1-ol
    N.Haridharan, V. Ramkumar & R.Dhamodharan
    Acta Cryst., E67(1), o180, (2011).

  82. 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.

  83. 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).

  84. 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

  85. 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).

  86. 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.

  87. 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.

  88. 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).

  89. 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.

  90. 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.

  91. p-Tolylmethanaminium cyclohexane-1,2-diyl phosphate
    Ravikumar R Gowda, Venkatachalam Ramkumar and Debashis Chakraborty
    Acta Cryst. E66(12), o3049, (2010)

  92. 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

  93. 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)

  94. 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).

  95. 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).

  96. 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).

  97. 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).

  98. 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.

  99. 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).

  100. 2,4,6-Trimethyl-3,5-bis[(phenylcarbonothioyl)sulfanylmethyl]benzyl benzenecarbodithioate.
    M. Kannan, V. Ramkumar & R. Dhamodharan
    Acta Cryst. E66, o1382, (2010).

  101. Triethylammonium 1,1′-binaphthyl-2,2′-diyl phosphate.
    R. R. Gowda, V. Ramkumar & D. Chakraborty .
    Acta Cryst. E66, o1625, (2010).

  102. 2-Oxo-4-trifluoromethyl-2H-chromen-7-yl 2-bromo-2-methylpropanoate.
    N. Haridharan, V. Ramkumar & R. Dhamodharan.
    Acta Cryst. E66, o1606, (2010).

  103. (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).

  104. 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).

  105. 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).

  106. 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).

  107. 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).

  108. 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).

  109. 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).

  110. 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).

  111. 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).

  112. 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).

  113. 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).

  114. 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).

  115. 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).

  116. 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).

  117. 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

  118. 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).

  119. 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).

  120. 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).

  121. 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).

  122. 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).

  123. 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).

  124. 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).

  125. 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)

  126. 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).

  127. 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)..

  128. 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).

  129. N-[Morpholino(phenyl)methyl]benzamide
    L. Muruganandam, S. Rajeswari, D. Tamilvendan, V. Ramkumar and G. V. Prabhu
    Acta Cryst. E65, o578, (2009).

     

  130. 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)

  131. 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).

  132. 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).

  133. 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).

  134. 3-Benzylidene-6-methoxychroman-4-one
    T. Augustine, Scholastica Mary Vithiya, V. Ramkumar and Charles C.Kanakam
    Acta Cryst. E64, o2080, (2008).

  135. 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)

  136. 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).

  137. 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).

  138. 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).

  139. 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)

  140. 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).

  141. 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).

  142. 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).

  143. cis-Bis(benzylmethylphenylphosphine- P)tetracarbonylmolybdenum(0)
    A.Doddi, T. A. Luiz, V. Ramkumar & M. N. S. Rao
    Acta Cryst. E63, m2727, (2007).

  144. 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).

  145. 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)

  146. 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).

  147. An Internal standardization procedure for Spectrally resolved Fluorescence Life Imaging Microscope (sFLIM).
    Quentin Hanley and V.Ramkumar
    Applied Spectroscopy, 59 [2] 261-266, (2005).

  148. 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.

  149. 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.

  150. 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.

  151. “Circuit Idea”, Supply failure Indicator,V.Ramkumar, Electronic For You, May (1983), 82.