Reducing power of three-coordinate cobalt(I) |
| |
Authors: | Ingleson Michael J Pink Maren Caulton Kenneth G |
| |
Institution: | Department of Chemistry, Indiana University, Bloomington, 47405-7102, USA. |
| |
Abstract: | Carbon monoxide adds easily to (PNP)Co, PNP = N(SiMe2CH2PtBu2)2, to give (PNP)Co(CO), whose nuco value of 1885 cm-1 suggests much back-donation, and thus an easily oxidized Co(I) in (PNP)Co. However, Co(III) is inaccessible from (PNP)Co by oxidation with I2, the products being first (PNP)CoI, then the zwitterion ItBu2PCH2SiMe2NSiMe2CH2PtBu2]CoI2. The potential two-electron oxidant N2CH(SiMe3) reacts with (PNP)Co to form a 1:1 "adduct", whose crystal structure is most consistent with oxidation of Co(I), but not fully to Co(III). |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|