The stereochemistry of organometallic compounds. XIII. The ¹³C N.M.R. spectra of some Tricarbonyl(arene)chromium compounds

Abstract

The ¹³C n.m.r, spectra of a series of tricarbonyl(arene)chromiums have been determined. The spectra are interpreted in terms of electronic effects of the substituent together with effects arising from con- formational preferences of the tricarbonylchromium residue.     No evidence for kinetic restriction of rotation could be found for any of the complexes at temperatures greater than -60°.