Date of Award

6-1998

Document Type

Union College Only

Degree Name

Bachelor of Science

Department

Chemistry

Language

English

Abstract

Flash photolysis has proven to be an effective technique for determining reaction mechanisms. Upon photolysis, a CO ligand is removed from Cr(CO)6 forming the reactive molecular fragment Cr(C0)5. In the presence of alkene, L, Cr(CO)s can react to form the meta-stable intermediate Cr(C0)5L. At high L concentrations, Cr(CO)5L decays by pseudo-first-order kinetics with an observed rate constant, kobs, which is dependent on the concentration of both L and added CO. The exar.t nature of the dependence provides insight into the mechanism of the decay of Cr(C0)5L and a plot of 1/kobs vs. [L] will give the rate constants for both the dissociation and formation of this complex.

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