Photoelectron He (I) spectra pentafluorophenyl derivatives of groups IV–VI elements

✍ Scribed by N.E. Petrachenko; V.I. Vovna; G.G. Furin

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 41 KB
• Volume: 54
• Category: Article
• ISSN: 0022-1139
• DOI: 10.1016/s0022-1139(00)83653-2

✦ Synopsis

The photoeleotron speotra of pentafluorophenyl derivatives of Groups IV-VI elements of type (C6F5)# (Y = S, Se, Si, Ge, Sn, P As), 036F5)3M=0 (M = P, Ae), c6F5~6F5 (V = N=N, N=N(O), CH=N, CH=N(O), C=C, SeSe, SS) have been measured and interpreted using the KNDO data. !l!he epeotra of tetrakie-substituted derivatives of group IV elements have shown very ll.ttle intramoleoular 'K-interaotion of benzene rings with oentral atom orbitals. The major oontribution to bonding is made by the C-M 0-orbitale. The same holds for the P=O and As=0 groups. The presenoe of' a lone eleotron pair at nitrogen or the N=N multiple bond leads to its interaotion with K-system or the benzene ring. For three-ooordinated phosphorus and areenio oompoundf~, the intramoleoular nIcinteraotion with 'K-MO of rluorinated benzene rings has been observed. In the phosphorus-oontaining oompound this interaotion wae found to be stronger than in the arsenio-oontaining one.