CY5019 : Organometallic Chemistry

Course Objectives: The learners should be able to analyze the mechanism of selected catalytic organic reactions from the structure-bonding aspects and reactivity of simple organometallic compounds

Learning Outcomes: At the end of the course, the learners should be able to:

Identify the structure and bonding aspects of simple organometallic compounds

Apply different electron counting rules to predict the shape/geometry of low and high nuclearity metal carbonyl clusters

Identify the different types of organometallic reactions and apply the above concepts to explain different catalytic reactions

Course Contents:

Organometallic chemistry of d-block elements: 18-electron rule, concept of hapticity; synthesis, structure and bonding of homo and heteroleptic metal-carbonyls, nitrosyls, alkyls, alkenes, allyl, alkynes, and arenes. Synthesis and reactivity of Fischer and Schrock carbenes.

Infrared spectra of metal carbonyls and olefins.

Neutral spectator ligands: phosphines and N-heterocyclic carbenes.

Metal clusters, Low and high nuclearity clusters, clusters having interstitial atoms, electron counting schemes:

polyhedral skeletal electron pair theory/Mingo’s rule.

Structure and Isolobal analogies.

Metallocenes and bent-metallocenes.

Fluxionality and dynamics in organometallic chemistry

Reactions of organometallic complexes: Substitution, oxidative addition, reductive elimination, insertion and deinsertion.

Catalysis: Organometallic catalysts, Terminology in catalysis: Turnover, turnover number (TON), turnover frequency (TOF). Hydrogenation, Hydroformylation, Monsanto process, Wacker process, Ziegler-Natta polymerization, C-C coupling reactions, Olefin Metathesis and metathesis polymerization

Organometallic compounds of s-block elements: Organo-lithium, beryllium and magnesium compounds

Text Books:

  1. M. Weller, T. Overton, J. Rourke and F. Armstrong, Inorganic Chemistry, 6th Edition, Oxford University Press, 2014. (South Asia Edition 2015)
  2. E. Huheey, E. A. Keiter, R.L. Keiter and O. K. Mehdi, Inorganic Chemistry, Principles of Structure and Reactivity, 4th Edition, Pearson, 2006.
  3. D. Gupta and A. J. Elias; Basic Organometallic Chemistry: Concepts, Synthesis, and Applications, 2nd Edition, Universities Press (India), 2013.
  4. N. Greenwood and A. Earnshaw, Chemistry of the Elements, 2nd Edition, Elsevier, 1997.
  5. P Powell, Principles of organometallic Chemistry, 2nd Edition, Springer, 2009.