Electronic structures and spectra of hexakisphenylisocyanide complexes of Cr(0), Mo(0), W(0), Mn(I), and Mn(II)

K. R. Mann, M. Cimolino, G. L. Geoffroy, G. S. Hammond, A. A. Orio, G. Albertin, H. B. Gray

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86 Scopus citations

Abstract

Electronic absorption spectra of M(CNPh)6 [M = Cr(0), Mo(0), W(0)], [Mn(CNPh)6]Cl, and [Mn (CNPh)6](PF6)2 are reported. Each of the M(CNPh)6 complexes exhibits three intense metal-to-ligand charge transfer (MLCT) absorption bands between 20.8 and 32.7 kK. The lowest MLCT bands are observed at 29.9 and 31.1 kK in the electronic spectrum of Mn (CNPh)6+. Low energy bands at 18.2 and 20.4 kK in [Mn(CNPh)6]2+ are assigned to vibronic components of a σ(CNPh) → dπ charge transfer transition. The unique electronic structural properties of arylisocyanide complexes are apparently related to the π conjugation of aromatic ring orbitals with the out-of-plane π*(CN) function.

Original languageEnglish (US)
Pages (from-to)97-101
Number of pages5
JournalInorganica Chimica Acta
Volume16
Issue numberC
DOIs
StatePublished - 1976

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