Gas-Phase Helium I Photoelectron Spectra of Methinyltricobalt Enneacarbonyl Clusters

Gaetano Granozzi, Eugenio Tondello, David Ajò, Maurizio Casarin, Silvio Aime, Domenico Osella

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

The electronic structure of Co3(CO)9CY clusters, where Y = H, F, Cl, Br, I, CH3, CF3, or COOCH3, is discussed on the basis of their He I excited gas-phase photoelectron spectra. A qualitative energy level diagram has been afforded which allows a satisfactory discussion of the PE data. The most interesting feature of our interpretative model is the presence of a molecular orbital of e symmetry which accounts for a large portion of the interaction between the Co3 triangle and the apical carbon atom Cap and for the electron transmission from the apical substituent Y and the cobalt atoms via a resonance-type mechanism. In agreement with previous NQR and IR data, evidence for significant Y→Cap π-bonding donation with Y = Cl, Br, or I is presented. The relationships existing between the present clusters and molecules of type M3(CO)12 and (µ-CH2)[MLn]2 have been stressed.

Lingua originaleInglese
pagine (da-a)1081-1084
Numero di pagine4
RivistaInorganic Chemistry
Volume21
Numero di pubblicazione3
DOI
Stato di pubblicazionePubblicato - 1982
Pubblicato esternamente

Fingerprint

Entra nei temi di ricerca di 'Gas-Phase Helium I Photoelectron Spectra of Methinyltricobalt Enneacarbonyl Clusters'. Insieme formano una fingerprint unica.

Cita questo