Vibrational spectra of metal–metal bonded complexes of group VIII
- 1 January 1969
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 834-839
- https://doi.org/10.1039/j19690000834
Abstract
Studies have been made of the vibrational spectra of a number of binuclear complexes, viz. Fe2(CO)9, Co2(CO)8, K8[Co2(CN)8], [Ni phen3][Fe2(CO)8](phen = 1,10-phenanthroline), Co2(CO)6[P(OPh)3]2, K4[Ni2(CN)6(CO)2], K4[Ni2(CN)6], K6[Co2(CN)10], and [Co2(CNMe)10](ClO4)4. From these studies it is concluded that, in the solid state, all but the first two contain metal–metal bonds without bridging ligands. The idealised symmetries for the metal–metal bonded complexes are D3d for [Fe2(CO)8]2–, [Co2(CN)8]8–, and Co2(CO)6[P(OPh)3]2; C2h for [Ni2(CN)6(CO)2]4–; D2h for [Ni2(CN)6]4–; and D4d for [Co2(CN)10]6–. Spectra of trinuclear complexes with linear M–M′–M bonds, Hg[Fe(NO)(CO)3]2, and bent M–M′–M bonds (HgX)2Fe(CO)4 and SnCl2[Co(CO)4]2 were studied, and also those of Rh4(CO)12 and Rh6(CO)16.Keywords
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