ISSN:
0268-2605
Keywords:
Chromium
;
molybdenum
;
tungsten
;
mesitylene metal tricarbonyls
;
infrared
;
Raman
;
spectra
;
intensities
;
polarity
;
polarizability
;
arene-metal bonding
;
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Infrared and Raman spectra of mesitylene complexes of chromium, molybdenum and tungsten tricarbonyls have been studied. Bands have been assigned and intesities calculated for a number of important modes. The intensities are related to the polarities and polarizabilities of individual bonds within the molecules. Variations of bond properties with change of metal M in the (η6-mesitylene)M(CO)3 complexes have been examined. The results are interpreted in terms of the relative importance of π-donation from the arene to the metal and of δ-backbonding. A molecular orbital scheme is proposed which accounts for the changes observed in the degree of π-and δ-bonding within the group of complexes studied.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aoc.590040519
