X = BF4, 2a; Pz′ = 3,5-dimethylpyrazole, X = PF6, 2c; Pz′ = 3,4,5-trimethylpyrazole, X = PF6, 2d) in which the N-donor ligand has been partially hydrolysed. The complexes exist in the form of two isomers, a meso form and a d,l pair. An apparent allyl rotation process leads to a syn-syn/anti-anti interconversion and also to an interchange between the two isomers. The values of ΔGc‡ at the coalescence
配体2,4,6-三(
吡唑-1-基)-
1,3,5-三嗪(TPzT), 2,4,6-三(3,5-二甲基-
吡唑-1-基)-1 ,
3,5-三嗪 (Me2-TPzT) 和 2,4,6-tris(3,4,5-trimethylpyrazol-1-yl)-1,3,5-triazine (Me3-TPzT) 已被合成和探索了它们与 [Pd(η3-
C4H7)(THF)2]X 的反应。1:3 摩尔比(
配体/溶剂化物)的反应产生新的衍
生物 [Pd(η3- )}2(BPz'TO)]X (Pz' = pyrazole, X =
BF4, 2a; Pz' =
3,5-二甲基吡唑,X = PF6, 2c;Pz' =
3,4,5-三甲基吡唑,X = PF6, 2d) 其中 N-供体
配体已部分
水解。复合物以两种异构体的形式存在,一种是内消旋形式,一种是 ad,l 对。明显的烯丙基旋转过程导致顺-顺/反-反互变以及两