ESR study of radical anions ando-semiquinone metal complexes—5,5′-di-tert-butyl-2,2′-dimethylbiphenyl-3,4,3′,4′-diquinone derivatives |
| |
| Authors: | G A Abakumov V K Cherkasov V I Nevodchikov N O Druzhkov V A Kuropatov |
| |
| Institution: | (1) G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 ul. Tropinina, 603600 Nizhnii Novgorod, Russian Federation |
| |
| Abstract: | The influence of the nature of the metal (metallofragment) on the spin density distribution in radical anions ando-semiquinone metal complexes (derivatives of sterically hindered 5,5′-di-tert-butyl-2,2′-dimethylbiphenyl-3,4,3′,4′-diquinone) was studied by ESR spectroscopy. Despite the difference in the characters
of the spin density distribution between the radical anion derivatives (M=Li, Na, K, and CoCp2) ando-semiquinone complexes (MLn=Tl, SnPh3, TlMe2, Cu(PPh3)2, Cu(CNR)2, and Mn(CO)4) in all cases significant delocalization of the spin density of an unpaired electron into theo-quinone ring is observed.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 904–907, May, 1998. |
| |
| Keywords: | di-o-quinone radical anions o-semiquinone metal complexes ESR spectroscopy spin density distribution |
| 本文献已被 SpringerLink 等数据库收录！ |
|
