The complexes [Ru(Tai)Cl=C(H)Ph}(PCy3)] (4) and [Ru(PhBai)Cl=C(H)Ph}(PCy3)] (5) [where Tai = HB(7-azaindolyl)3 and PhBai = Ph(H)B(7-azaindolyl)2] have been prepared and structurally characterised. The borohydride unit is located in the coordination site trans to the chloride ligand in both complexes. The degree of interaction between the borohydride group and the metal centre was found to be significantly large in both cases. Thermolysis reactions involving complex 4 led to a dehydrogenation reaction forming [Ru(Tai)ClPCy2(η2-C6H9)}] (6) where the benzylidene group acts as a hydrogen acceptor.
我们制备了[Ru(Tai)Cl=C(H)Ph}(PCy3)] (4) 和[Ru(PhBai)Cl=C(H)Ph}(PCy3)] (5) [其中 Tai = HB(7-azaindolyl)3 和 PhBai = Ph(H)B(7-azaindolyl)2] 复合物,并对其进行了结构表征。在这两种配合物中,
硼氢化合单元都位于
氯配体的反式配位位点上。在这两种情况下,
硼氢基与
金属中心之间的相互作用程度都很大。络合物 4 的热解反应导致脱氢反应,形成 [Ru(Tai)ClPCy2(η2-
C6H9)}] (6),其中的亚苄基是氢接受体。