Abstract Reaction of ReBr(CO)3(MeCN)2 with one-half an equivalent of MeN(PF2)2 forms Re2(CO)6(u–Br)2(u-MeN(PF2)2) (1) as the major product while with one equivalent of the phosphine, a mixture of 1, ReBr(CO)3(η2-MeN(PF2)2) (2) and ReBr(CO)3(η1-MeN(PF2)2)(MeCN) (3) is produced. Complex 2 is more conveniently prepared from ReBr(CO)3(THF)2 and one equivalent of the phosphine. It reacts with ReBr(CO)3(MeCN)2 to form 1 and with acetonitrile to form 3. The crystal and molecular structure of 1 has been determined. 1: Triclinic, P1; a = 6.501(3), b = 100.98(3), c = 14.722(4)A, α = 94.32(2), β = 100.93(3), γ = 107.21(3)° Z = 2; R = 0.042, R w = 0.055 for 3144 reflections (I≥3σ(I)).

中文翻译：

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双(二氟膦基)甲胺的铼(I)络合物。六羰基二-μ-溴-μ-BIS（二氟膦基）甲基氨基二铼（I）的晶体和分子结构

摘要 ReBr(CO)3(MeCN)2 与二分之一当量的 MeN(PF2)2 反应形成 Re2(CO)6(u–Br)2(u-MeN(PF2)2) (1) 作为主要产品，同时含有一当量的膦，1、ReBr(CO)3(η2-MeN(PF2)2) (2) 和 ReBr(CO)3(η1-MeN(PF2)2)(MeCN) 的混合物(3) 产生。配合物 2 更方便地由 ReBr(CO)3(THF)2 和一当量的膦制备。它与 ReBr(CO)3(MeCN)2 反应形成 1，与乙腈反应形成 3。 1 的晶体和分子结构已确定。1：三斜，P1；a = 6.501(3), b = 100.98(3), c = 14.722(4)A, α = 94.32(2), β = 100.93(3), γ = 107.21(3)° Z = 2；对于 3144 次反射，R = 0.042，R w = 0.055 (I≥3σ(I))。