[(η3-triphos)ReH5] (6) by treatment with NaBH4 at room temperature. The reductive elimination of H2 from 6 is promoted by monodentate ligands such as PPh3 and CO, giving substitution products of the formula [(η3-triphos)ReH3(L)] (L = PPh3 (7) or CO (8)). All the rhenium polyhydrides obtained have been characterized by spectroscopic techniques including IR and multinuclear variable-temperature NMR analysis.
的反应CH 3 C(CH 2 PPH 2)3(
三磷酸)与[重(O)
氯3(PPH 3)2 ]中在回流温度下的产率THF [(η 2 -triphos)的Re(O)
氯3 ] (3)。化合物3转化为[(η 2 -triphos)则热7 ](4)通过用的LiAlH处理4在回流的THF中。的反应〔重(M
ECN中)
氯3(PPH 3)2 ]与在回流
甲苯三膦给出FAC - [(η 3 -triphos)R
ECL3 ](5),收率优异。复杂5被转换成古典pentahydride [(η 3 -triphos)则热5 ](6)通过用NaBH处理4在室温下。H的还原消去2从6是由单齿
配体促进诸如PPH 3和CO,从而取代产物的式[(η 3 -triphos)则热3(L)](L = PPH 3(7)或CO(8))。所获得的所有poly多羟基化合物均已通过包括IR和多核可变温度NMR分析在内的光谱技术进行了表征。对可变温度下自旋晶格弛豫时间(T