Infrared spectra and structures of di-µ-carbonyl-(π-cyclopentadienylnickelio)carbonyl-π-cyclopentadienyliron(Ni–Fe), (π-C5H5)2FeNi(CO)3and di-µ-carbonyl-bis-(π-cyclopentadienylnickel)(Ni–Ni), [(π-C5H5)Ni(CO)]2
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 717-719
- https://doi.org/10.1039/j19710000717
Abstract
The i.r. spectra of [(π-C5H5)2FeNi(CO)3] and [(π-C5H5)Ni(CO)]2 have been investigated. They are independent of solvent, and are consistent with molecular structures which possess an almost-planar Fe·µ(CO)2·Ni and a puckered Ni·µ(CO)2·Ni bridging system respectively. Simple force-constant calculations which ignore interactions in v(CO) for bridging and terminal CO groups have been carried out. They accurately predict the frequencies of the v(CO) modes of molecules containing one 13CO ligand for both compounds.Keywords
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