Good routes have been developed to the mono- and bis-substituted derivatives [Os6(CO)17L] (L = P(OMe)3, PEt3, PPh2Me, PPh3, AsPh3 or SbPh3) and [Os6(CO)16L′2] (L′ = PPh3, PPh2Me), which have structures based on the same bicapped tetrahedral OS6-unit established for [Os6(CO)18]. The [Os6(CO)16L′2] compounds apparently exist in more than one isomeric form and small amounts of the tris-substituted derivatives
对于单取代和双取代的衍
生物[
OS 6(CO)17 L](L = P(OMe)3,PEt 3,PPh 2 Me,PPh 3,AsPh 3或SbPh 3),已经开发出了良好的途径。
OS 6(CO)16 L' 2 ](L'= PPh 3,PPh 2 Me),其结构基于为[
OS 6(CO)18 ]建立的相同二等分四面体
OS 6-单元。[
OS 6(CO)16 L' 2]化合物显然以一种以上的异构体形式存在,并且还观察到少量的三取代衍
生物[
OS 6(CO)15 L' 3 ]。单取代的六
OS簇[
OS 6(CO)17 L]与CH 2 Cl 2中的Me 3 NO反应,生成先前未知的
氢化六
OS阴离子[H
OS 6(CO)16 L] -与HBF 4 · Et 2 O首先给出中性六
氢化二[[H 2
OS 6(CO)16 L],然后给出阳离子[H3
OS 6(CO)16 L] +。双取代的六
OS簇[
OS 6(CO)16