
%0 Journal Article
%A Bowden, JA 
%A Colton, R 
%T Substituted carbonyl derivatives of the Group VI transition metals. II. Complexes with tritolylphosphines
%J Australian Journal of Chemistry
%D 1971/12/01
%V 24
%N 12
%P 2471-2480
%K 
%R https://doi.org/10.1071/CH9712471
%U https://www.publish.csiro.au/paper/CH9712471 
%X The reactions of the three tritolylphosphines (ortho, meta, and para) with the metal hexacarbonyls, M(CO)6 (M = Cr, Mo, W), have been investigated under a variety of conditions of temperature, ultraviolet irradiation, and molar ratio. The products were of the general formulae M(CO)5L and cis and trans M(CO)4L2 [L = tri-tolylphosphine] although not all the tetracarbonyl complexes could be prepared. Infrared and nuclear magnetic resonance spectra of these compounds showed interesting trends as the ligand was varied.     In addition, a novel series of derivatives with tri(o- tolyl)phosphine (pot) has been isolated, which on the basis of infrared, N.M.R., and mass spectral data are formulated as &#960;- (pot)M(CO)3.     The nature of the above reactions and the properties of the products are explained in terms of an argument based on steric effects. 
