Table of Contents
Laser Chemistry
Volume 9, Issue 1-3, Pages 63-73

Elementary Rate Processes in the Dissociative CO for C2H4 Substitution Reactions of Organometallic Complexes in the Gas Phase

Department of Chemistry, Purdue University, West Lafayette 47907, IN, USA

Received 29 February 1988; Accepted 6 March 1988

Copyright © 1988 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Dissociative substitution mechanisms abound in organometallic chemistry. For certain systems, such processes can be isolated in the gas phase, where, as sequences of elementary unimolecular and bimolecular reactions, their kinetics can convey information on fundamental energetics and dynamics of metal-centered chemical transformations. Methods of competitive kinetics, using time-resolved infrared absorption spectrometry, provide relative and absolute rate constants for comparatively fast reactions. Work yielding unimolecular decay and relative bimolecular production rate constants for selected bis- and tris-ethylene complexes of iron and chromium carbonyls is summarized together with a report of new work on the CO-for-C2H4 substitution kinetics of (C2H4)Cr(CO)5.