Photoelectron spectroscopy study of the triphenyl derivatives of the group IV elements |
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| Authors: | G Distefano S Pignataro L Szepes J Borossay |
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| Institution: | Laboratorio dei composti del carbonio contenenti eteroatomi e loro applicazioni del C.N.R., Via Tolara di Sotto, 89 Ozzano Emilia, Bologna Italy;Istituto di Chimica Fisica dell''Università, Cittadella Universitaria, Viale A. Doria, Catania Italy;Eötuös Loránd University, General and Inorganic Chemistry Department, Budapest Hungary |
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| Abstract: | The photoelectron He(I) spectra of several phenyl derivatives of the Group IV elements are reported, and the first few bands are assigned to the corresponding MO's. A sizable interaction among the π orbitals of the rings has been found for the carbon derivatives HCPh3, HC(mesityl)3 and H2CPh2, but not for the Si, Ge and Sn triphenyl derivatives. The exceptional behaviour of the carbon compounds has been attributed to the short central atom—ring distance, by analogy with findings for the Group V triphenyl derivatives.The charge transfer from the rings towards the Si atom is substantially reduced compared with that in H3SiPh. |
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