Journal of Coordination Chemistry · 1971 · 50 citations · 14 references
Materials ScienceInorganic ChemistryInorganic CompoundEngineeringPhysicsTheoretical Inorganic ChemistryNatural SciencesSpectroscopyRaman DataRhenium CompoundsSpectra-structure CorrelationPhysical ChemistryQuantum ChemistryChemistryMolecular ChemistrySpectroscopic PropertyMolecular SpectroscopyIntense Raman Lines
Abstract Infrared and Raman spectra have been recorded for the following dinuclear ions and molecules containing quadruple metal-to-metal bonds: Re2Cl8 2-, Re2Br8 2-, Mo2Cl8 4-, Re2(O2CCH3)Cl2, Re2(O2CCH3)4Br2 and Mo2(O2CCH3)4. The Raman data are, regrettably, rather incomplete due to the intense and extensive electronic absorption spectra of most of the compounds. Intense Raman lines observed at 275 and 289 cm−1 for the rhenium compounds and at 406 cm−1 for Mo2(O2CCH3)4 have been assigned as predominantly M-M stretching modes. Vibrational analyses using both valence force fields with a few interaction constants and Urey-Bradley force fields lead to moderately consistent results, with the M-M force constants lying in the range 3.1–4.5 mdyne/ Å.
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Compounds Containing Dirheniurm(III) Octahalide Anions
F. Albert Cotton, Neil F. Curtis, Brian F. G. Johnson et al. · Inorganic Chemistry · 1965 · 125 citations