however, generate a species, speculatively thought to be the unusual, tight ion-pair, bisammine species [RuX(P–N)(PPh3)(NH3)2⋯X], 5a (X = Cl) and 5b (X = Br), in which a halide is considered strongly H-bonded to the cis-ammine ligands, although an alternative RuX(P–N)(PPh3)(NH3)2 formulation with a monodentate P–N ligand cannot be ruled out; dissolution in CDCl3 of isolated 5a and 5b, which are characterized
已知的五配位,四方锥,绿色反-RuCl 2(P-N)(PR 3)配合物(P-N = Ö -diphenylphosphino- Ñ,Ñ '二甲基
苯胺; R =苯基(1A),p -在室温下处于固态或在低温下于CDCl 3溶液中配位的CO(在1个大气压下)形成米色反式-单羰基衍
生物。在室温下的溶液反应中,PR 3
配体解离,形成黄色的二羰基络合物RuCl 2(CO)2(
PN ),形成反式,顺-和顺,顺式异构体。通过使用13 CO,羰基配合物的特征在于可变温度NMR和IR数据,以及(对于单羰基而言)元素分析。同样,固态的1a和二
溴类似物(1b)结合NH 3以形成米色反-monoammine物种RUX 2(P-N)(PPH 3)(NH 3),反式-图4a(X = C1)和反式-图4b(X =
溴),与顺式P-原子。然而,溶液NH 3反应产生了一种物质,推测是一种不寻常的,紧密的离子对的双
胺类物质[RuX(P–N)(PPh