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HIGHER & APPLIED AREA LEVEL COURSES:

Chem.414 Advanced Organometallics (3+1)

LEARNING OBJECTIVES:

Objectives of this course are:
 to provide knowledge about the bonding and fluxionality in organometallic compounds of
transition elements.
 to explain homogeneous transition metal catalysis
 to give information about metal-metal bonding in metal clusters.

LEARNING OUTCOMES:

The student will be able to
 get information about different aspects the metal-carbon multiple bonded organometallic
compounds and their different applications
 apply knowledge of homogeneous transition metal catalysis to explain hydrogenation of
organic compounds.
 Explain important homogeneous catalytic reactions and their utility in organic synthesis.

THEORY (45 Hours)

UNIT-I (12 Hours)
Organometallic Compounds of transition elements: Types of ligands and their classifications
in organometallic compounds, 16 and 18 electron rule and its limitations. Hapto-nomenclature,
synthesis, structure and bonding aspects of following organometallic compounds with carbon- π
donor ligands: (a) Two electron donor (olefin and acetylenic complexes of transition metals): (b)
Three electron donor (π-allyl complexes of transition metals): (c) Four electron donor (butadiene
and cyclobutadiene complexes of transition metals): (d) Five electron donor cyclopentadienyl
complexes of transition metals – metallocenes with special emphasis to ferrocenes): (e) Six
electron donor [Benzene (arene) complex]. Fluxional Organometallic compounds (classification)

UNIT-II (12 Hours)
Homogeneous Transition metal catalysis: General considerations, Reason for selecting
transition metals in catalysis (bonding ability, ligand effects, variability of oxidation state and
coordination number), basic concept of catalysis (molecular activation by coordination and
addition), proximity interaction (insertion/inter-ligand igration and elimination, rearrangement).
Phase transfer catalysis. Homogeneous hydrogenation of unsaturated compounds (alkenes,
alkynes, aldehydes and ketones). Asymmetric hydrogenation (Olefins).
UNIT-III (5 Hours)

Some important homogeneous catalytic reactions: Ziegler Natta polymerization of ethylene
and propylene, oligomerisation of alkenes by aluminium alkyl, hydroformylation of unsaturated
compounds using cobalt and rhodium complexes, carbonylation of alkenes and alkynes using
nickel carbonyl and palladium complexes.

UNIT-IV (8 Hours)

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