Linking metal centres with bis(diphenylphosphino)acetylene (DPPA): Syntheses and molecular structures of [{Mo(CO)4(μ-DPPA)}2] and [{Mo(CO)3}2(μ-DPPA)3]
作者： Graeme Hogarth , Tim Norman
DOI: 10.1016/0277-5387(95)00568-4
关键词: Medicinal chemistry 、 Piperidine 、 Cluster chemistry 、 Metal 、 Chemistry 、 Acetylene 、 Stereochemistry 、 Diphosphines
摘要: Addition of bis(diphenylphosphino)acetylene (DPPA) to [Mo(CO)(4)(piperidine)(2)] yielded doubly-bridged cis,cis-[{Mo(CO)(4)(mu-DPPA)}(2)] (1), while further addition DPPA afforded triply-bridged fac,fac-[{Mo(CO)(3)}2(mu-DPPA)(3)] (2). Both have been characterized crystallographically, the former showing a twisted arrangement diphosphine bridges, in latter three diphosphines are approximately parallel one another and metal-metal vector. (C) 1996 Elsevier Science Ltd.
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