In chloroform solution, the title compounds have been generated at room temperature from 1 equiv. ClAuPPh3 and the lithium salts of the type Li[Re2(μ-PPh2)2(CO)7(ax-C(R)O)] (R=alkyl and aryl residues). The selective formation of such monoanions in the lithium salts from Re2(μ-PPh2)2(CO)8 and 1 equiv. LiR in THF solution at −90°C runs quantitatively. All the products obtained were characterized by means
在
氯仿溶液中,标题化合物是在室温下从1当量生成的。ClAuPPh 3和Li [Re 2(μ- PPh 2)2(CO)7(ax-C(R)O)]类型的
锂盐(R =烷基和芳基残基)。由Re 2(μ- PPh 2)2(CO)8和1当量在
锂盐中选择性形成此类单阴离子。在-90°C下的THF溶液中的LiR定量运行。通过1 H NMR,31 P NMR和υ(CO)IR测量表征所有获得的产物。Re的分子结构提出了通过单晶X射线分析确定的2(μ- PPh 2)2(CO)7(ax- n -BuCOAuPPh 3)。这种检查确定哪些被俘获在重新O形协调
配体L的第一acylgold(I)配合物2(μ -PPh 2)2(CO)7(AX-L)。讨论了酰基从a到
金中心的不寻常转移。到目前为止,我们尝试获得游离的acylgold(I)有机基的尝试仍未成功。