diene = 1,5-cyclooctadiene. The fluxional behavior of all these complexes is studied by NMR spectroscopy. The complex [Rh(NBD)(PePy2)]PF6.Cl2CH2 crystallizes in the monoclinic space group P21/n with a = 8.455(1) A, b = 18.068(3) A, c = 19.729(3) A, beta = 99.658(3)degrees, and Z = 4. The complexes [Rh(diene)(PePy2)]+ react with CO to give the dimeric complex [Rh2(CO)2[P(CH2CH2Py)2Ph]2](BF4)2 with the
[RhX(CO)(PePy2)],[Rh(diene)(PePy2)] +和[Rh(diene)(PePy2)] +(PePyn = P(CH2CH2Py)nPh3- n; Py = 2-
吡啶基; n = 1、2)已经制备。前两个是方形平面;另一个是方形平面。对于二烯=
四氟苯并
戊烯或降
冰片二烯(通过X射线衍射证实),后者是五配位的,但是对于二烯= 1,5-
环辛二烯,在溶液中存在4-和5-配位异构体的平衡。通过NMR光谱研究所有这些配合物的通量行为。复合物[Rh(NBD)(PePy2)] PF6.Cl2CH2在单斜空间群P21 / n中结晶,其中a = 8.455(1)A,b = 18.068(3)A,c = 19.729(3)A,β= 99.658(3)度,Z =4。配合物[Rh(diene)(PePy2)] +与CO反应生成二聚体配合物[Rh2(CO)2 [P(CH2CH2Py)2Ph]