Bromine oxidation of [ReBr(CO)3(PR3)2] [PR3 = PMe2Ph, PEt2Ph, PMePh2, PPh3, PPh2C6H4Me-4 or P(C6H4OMe-4)3] yields stable seven-coordinate rhenium(III) complexes [ReBr3(CO)2(PR3)2] only for the less sterically demanding phosphines PMe2Ph, PEt2Ph and PMePh2. Crystals of [ReBr3(CO)2(PMe2Ph)2] (1) are triclinic, space group P, Z = 2, in a unit cell with lattice parameters a = 9.575(8), b = 14.705(11), c
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溴氧化[ReBr(CO)3(PR 3)2 ] [PR 3 = PME 2 PH,PET 2 PH,PMePh 2,PPH 3,PPH 2 Ç 6 ħ 4 ME-4或P(C 6 H ^ 4 OME -4)3 ]的产率稳定七坐标
铼(III)配合物[ReBr 3(CO)2(PR 3)2 ]仅对于少空间要求的膦PME 2 PH,PET 2 h和PMePh 2。[ReBr 3的晶体(CO)2(PMe 2 Ph)2 ](1)是三斜晶系,空间群P,Z = 2,在具有晶格参数a = 9.575(8),b = 14.705(11),c = 9.629( 12)Å,α= 77.71(7),β= 109.06(8)和γ= 115.02(8)°。在衍射仪上收集了2991个高于背景的独立反射,并将其精确化为R0.07。
金属原子具有一个封闭的八面体环境,在唯一的封闭位置[1.87(3)Å]上有一个羰基,在封闭面有两个膦[2