Intervalence Charge Transfer and

Intervalence Charge Transfer and Electron Exchange Studies of Dinuclear Ruthenium Complexes Robert J. Crutchley... 

INTERVALENCE CHARGE TRANSFER AND ELECTRON EXCHANGE STUDIES OF DINUCLEAR RUTHENIUM COMPLEXES... 

How can yon show that the color of Pmssian bine arises from intervalence charge transfer and not from a transition within a single ion such as Fe(CN)e or... 

This example relates to a ground-state outer-sphere complex (p) existing in labile equilibrium with reactants A+ and B. Other systems considered include photoelectron emission, directly bonded systems (such as Fe CF+ - Fe Cl +), and charge transfer to and from the solvent. Meyer concentrates on intervalence charge transfer and intramolecular thermal electron transfer in homo-nuclear mixed-valence complexes. He remarks that the ideal experiment will be to measure both IT band energies and the rate of intramolecular electron transfer directly for an ion like [(bipy)2ClRu Hpyz)Ru Cl(bipy)2] , since it will then be possible to sketch the complete energy profile and to obtain the frequency factor for the thermal process. 

The colors of these perovskites span over a rather wide range, being originated by different mechanisms. Bandgap colors feature the oxynitride perovskites, while metal-oxygen charge transfer, often associated with intervalence charge transfer and crystal field electronic transitions, characterizes the oxidic phases. 

---