Formation of ionic transition-metal carbonyl cluster fragments by ion-molecule reactions. 1. The chromium hexacarbonyl and iron pentacarbonyl systems
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to give ionic cluster fragments of the type Mx(CU)yT. The MT and M(CO)xT reactant ions give rise to different ionic cluster fragments which undergo further reaction with neutral M(CO)y.In this paper, we propose the reactivity of the ionic cluster fragments is related to the degree of coordination unsaturation. Plots of the relative reaction rate vs. electron deficiency can give some indication of the structure of the cluster fragments. This interpretation of the results suggests that some cluster fragments have multiple metal-metal bonds and/or carbonyl ligands acting as 4-electron donors. The present work emphasizes the ion-molecule reaction sequence and the degree of coordination saturation/unsaturation of the ionic cluster fragments. Fragment ions formed by dissociative ionization of Cr(CO)6and Fe(CO)5react readily with their respective neutrals. © 1985, American Chemical Society. All rights reserved.
author list (cited authors)
Fredeen, D. A., & Russell, D. H
complete list of authors
Fredeen, DonnaJean Anderson||Russell, David H