Organometallic Chemistry and Spectroscopy

Paper Code: 
CHY 144 B
Credits: 
4
Contact Hours: 
60.00
11.00
Unit I: 
Metal-Carbon Multiple Bonded Organometallics-I

Types of transition metal to carbon bonds. Classification of organometallic compounds (on the basis of hapticity and polarity of M-C bond).  Nomenclature and general characteristics, valence electron count (16 and 18  electron rules).

Routes of synthesis for s-alkyls and aryls of transition metals, stability of organometallic compounds and decomposition  pathways.  Preparation,  structure and bonding of    carbene and carbyne complexes (both Fischer and Schrock types).

 

10.00
Unit II: 
Metal-Carbon Multiple Bonded Organometallics-II

Preparation, properties, structure and bonding of η5- dienyl  complexes, η6- arene & triene complexes (nucleophilic and electrophilic substitution), fluxionality and dynamic equilibria in η2- olefin,  η3- allyl  and  η5-dienyl complexes

15.00
Unit III: 
Catalysis by Organotransition Metal Complexes

Principles and important reactions of transition metal organometallics: Oxidative addition, insertion and product isolation (reductive elimination and β- elimination).           

Homogeneous catalysis: Hydrogenation of alkenes, hydrosilylation of alkenes, metathesis of alkenes, oligomerization and polymerization of alkenes and alkynes, hydroformylation of alkenes, acetic acid synthesis and other carbonylation reactions, oxidation reactions of alkenes.

Heterogeneous catalysis: Fischer Tropsch process- Methanation reaction, synthesis of methanol, gasoline production, water gas shift reaction, role of ZnO/Cr2O3 in the reaction, acetic acid synthesis.

12.00
Unit IV: 
Metal π-Complexes

Metal carbonyls: Preparation, properties, structure and bonding with special reference to dinuclear and polynuclear carbonyls . Vibrational spectra of metal carbonyls (bridging and terminal) for structural elucidation.

12.00
Unit V: 
Spectroscopic Techniques

UV: Visible molecular absorption spectrometry (instrumentation and application).

NMR Spectroscopy: Theory and applications of 1H and 13C  NMR spectroscopy.

Mass & IR Spectroscopy: Theory and applications.

Structural elucidation by UV, IR, NMR & Mass Spectra.

 

References: 
  1. The Organometallic Chemistry of the Transition Metals; Fourth Edition; R. H. Crabtree;  John Wiley and Sons, INC., New Jersey, 2005.
  2. Organometallic Chemistry: A Unified Approach; Second Edition; R.C. Mehrotra and A.Singh; New Age International Private Limited, New Delhi, 2005.
  3. Inorganic Chemistry; Third Edition; G. L. Miessler and D. A. Tarr; Pearson Education Inc., Singapore, 2005.
  4. Inorganic Chemistry, Principles of Structure and Reactivity; Fourth Edition; J. E. Huheey, E.A. Keiter and R.L. Keiter; Harper Collins, 2001.
  5. Advanced Inorganic Chemistry; Fifth and Sixth Edition; F.A. Cotton and G. Wilkinson; John Wiley and Sons, New York, 2003.
  6. Concepts and Models of Inorganic Chemistry; Third Edition; B. Douglas, D. McDaniel; John Wiley and Sons, Singapore, 2001.
  7. Spectral Analysis of Organic Compounds; Creswell and Campbell; Longman.
  8. Spectrometric Identification of Organic Compounds, Sixth Edition; R.M. Silverstein and F.X. Webster; John Wiley and Sons, Inc., Singapore, 1991.
Academic Year: 
2020-2021
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