Formation of Gels and Films from Hexamine- and Hexamidecobalt(II) Carbonylcobalt Complexes |
| |
| Authors: | Semenov V V Cherepennikova N F Lopatin M A Khorshev S Ya Fominykh Zh Yu Kirillov A I Sedel'nikova V N Domrachev G A |
| |
| Institution: | (1) Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, c[Nizhni Novgorod, Russia |
| |
| Abstract: | When kept in dilute acetonitrile solutions, complexes CoB6]Co(CO)4]2 B = C5H5N, Me2NC(O)H] form gels CoB
x
(MeCN)
y
](OH)2·2CoCO3·2CoO·2H2O] (x = 2, 3, y = 4, 3), while the polyfunctional complex Co{(EtO)3SiCH2CH2CH2NH2)}]Co(CO)4]2 gives a mixed carbonate-siloxane gel. The gel formation is accompanied by complete decomposition of Co(CO)4]- anions under the action of air oxygen and moisture, to give CoCO3·2CoO·2H2O. Mechanistically, the gel and film formation involves absorption of molecular oxygen by the hexamine- or hexamidecobalt(II) cation and subsequent decomposition of theunstable oxygenated carbonylcobalt complex. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
