Solid state 13C and high resolution 1H and 13C n.m.r. spectra of dicarbony(hexaethylbenzene)thiocarbonylchromium(0): a reaffirmation of slowed tripodal rotation

Abstract

The high resolution and solid state n.m.r. spectra of the title compound indicate that the arene has alternating proximal and distal ethyl groups both in the solid and in solution: this not only requires slowed tripodal rotation on the n.m.r. time scale but also militates against the recent proposal that the major stereoisomer found in solution is different from that established crystallographically.