trigonal bipyramidal κ3 structure. With MeCCR (R = Me or Et), 1+[PF6]− gives the κ2 square planar complexes [Rhη4-C4Me2R2C(O)}HC(pz′)3}][PF6] (R = Me, 6+[PF6]−; R = Et, 7+[PF6]−) in which the cyclopentadienone ligands are coordinated via two Rh–monoalkene bonds; the structurally characterised form of 7+ has the two alkyne units linked head-to-head with the CEt termini bound to the ketonic CO group.
复数[Rh(CO)2 HC(
PZ')3 }] [PF 6 ],1 + [PF 6 ] - HC(
PZ')3 =三(
3,5-二甲基吡唑基)
甲烷},由下述方法制备[的Rh(CO)2(μ-Cl)的} 2 ]与HC(
PZ')3在
铊[PF的存在6 ],具有带有一κ扭曲的四方锥体结构3 -HC(
PZ')3
配体。 羰取代与路易斯碱给出的[Rh(CO)L- HC(
PZ')3 }] [PF 6 ] L = PPH 3,2 + [PF 6 ] - ; L = A
SPH 3,3 + [PF 6 ] - ; L = P(ø
甲苯基)3,4 + [PF 6 ] - },其具有正方形的平面κ 2层的结构,通过确认X射线晶体学为2 + [PF 6 ] -。这阳离子 2 +和3 +有第三
吡唑基环面向伪平行于正方形平面
金属而4 +更有可能具有面向所述第
三环外于该平面。的单电子氧化2 +和3 +给出的Rh(II)双阳离子的[Rh(CO)(PPH