heterocyclic ligands binding in the common N,N′-exo-bidentate mode; however, the shape and geometry of the inner Cu4 moiety is remarkably different, as highlighted, for example, by the absolute values of the 1,2 and 1,3 (non-bonding) Cu⋯Cu interactions. These polynuclear copper(I) pyrazolate complexes catalyse the conversion of alkenes into the corresponding cyclopropane derivatives with interesting diastereomeric
[Cu(CH 3 CN)4 ](BF 4)与外消旋
吡唑-
3,5-二羧酸二仲丁酯(3,5-二芳基仲丁氧基
吡唑,Hdcsbpz)或
吡唑-3的反应,5-二-叔丁基(3,5-二-三-丁基
吡,Hdtbpz)定量得到的新的[Cu(上dcsbpz)] 4和[Cu(上dtbpz)] 4种配合物,分别。[Cu(dcsbpz)] 4的晶体是三斜晶系,P,a = 10.9748(7),b = 11.8399(8),c = 26.5575(17)Å,α = 100.605(2),β = 90.783(2),γ= 105.362(2)°; [Cu(dtbpz)] 4 •CH 2 Cl 2是单斜晶的,P 2 1 / n,a = 10.902(3),b = 19.200(3),c = 25.772(4)Å,β = 93.86(2)° 。这两个物种含有环状四聚体分子与
配体的杂环在共同结合Ñ,Ñ ' -外切-bidentate模式;