Organometallic derivatives of the transition elements IX. Polynuclear ?-complexes

Article abstract of DOI:10.1016/0022-328X(88)80674-0

The synthesis and characterization of several mono- and di-substituted bis(diarene)chromium- complexes is described, where the diarene is a biphenyl-like ligand.A number of carbon based groups incorporating different hybridizations are used as spacers between the ?-coordinated rings in the diarene moiety.The effect of the spacing group upon the inductive and resonance effects on electronic communication between metal sites in these systems is discussed using data from infrared and 1H NMR spectroscopy.