Synthesis, crystal structure and MMCT of a heterobimetallic cyanide-bridged complex trans-BrRuII(dppe)2(μ-CN)(FeIIIBr3)

Abstract

The syntheses, crystal structures, IR and electronic absorption spectroscopy of cyanide-bridged complex trans-BrRuII(dppe)2(μ-CN)(FeIIIBr3) (2) and its parent trans-ClRuII(dppe)2(CN) (1) were reported. The crystals crystallized in the monoclinic space group C2/c for 1, and monoclinic space group P21/c for 2. The crystal structural data, MMCT (metal-to-metal charge transfer) in electronic absorption spectra and EPR spectra indicate the existence of some electron delocalization along FeIIINCRuII in complex 2. The magnetic properties of complex 2 were measured and analyzed.