Treatment of the coordinatively unsaturated osmium trimethylstannyl complex, Os(SnMe3)Cl(CO)(PPh3)2 1, with either pyridine (py) or sodium acetate results in methyl migration from tin to osmium, giving the structurally characterised complexes, Os(Me)(SnClMe2)(py)- (CO)(PPh3)2 2 or Os(Me)(SnMe2OC[Me]O)(CO)(PPh3)2 3, respectively: the methyl migration is reversible and treatment of Os(Me)(SnClMe2)(py)(CO)(PPh3)2 with CO gives the trimethylstannyl complex, Os(SnMe3)Cl(CO)2(PPh3)2.
用
吡啶(py)或
醋酸钠处理配位不饱和
锇三甲基锡络合物 Os(SnMe3)Cl(CO)(PPh3)2 1,会导致甲基从
锡向
锇迁移,分别得到结构上特征明显的络合物 Os(Me)(SnClMe2)(py)-(CO)(PPh3)2 2 或 Os(Me)(SnMe2OC[Me]O)(CO)(PPh3)2 3:甲基迁移是可逆的,Os(Me)(SnClMe2)(py)(CO)(PPh3)2 与 CO 处理后可得到
三甲基锡络合物 Os(SnMe3)Cl(CO)2(PPh3)2。