摘要一系列由Pd II基结晶的异双金属乙酸盐桥接的配合物,包含过渡态(Mn II,Co II,Ni II,Cu II),过渡态(Zn II)和稀土(Ce IV,Nd III,Eu从Pd 3(OOCMe)6和互补金属乙酸盐(II,III)开始合成III)金属。双核Pd II M II(μ-OOCMe)4 L(M = Mn,Co,Ni,Zn; L = H 2 O,MeCN),三核Pd 2 II Cu II(μ-OOCMe)的晶体和分子结构6和四核Pd 2 II M 2 III(μ,η2-OOCMe)2(μ-OOCMe)8(THF)2(M = Nd,Eu)和Pd 2 II Ce 2 IV(μ,η2-OOCMe)通过X射线衍射建立了2(η1-OOCMe)2(μ-OOCMe)8(H 2 O)2配合物。
Synthesis of palladium(II) 3d-metal(II) paddlewheel acetate-bridged heterodimetallic complexes: Unexpected catalysis by water molecules
作者:Nailya S. Akhmadullina、Natalia V. Cherkashina、Natalia Yu. Kozitsyna、Igor P. Stolarov、Elena V. Perova、Alexander E. Gekhman、Sergei E. Nefedov、Michael N. Vargaftik、Ilya I. Moiseev
DOI:10.1016/j.ica.2008.09.042
日期:2009.4
A study of the reaction kinetics between the trinuclear palladium(II) acetate Pd-3(mu-OOCMe)(6) (1) and the mononuclear 3d-metal (Ni-II, Co-II, Cu-II) acetates in acetic acid under water-specified conditions revealed a fairly complicated reaction mechanism triggered by the primary hydrolytic cleavage of an acetate bridge in molecule 1. The isolated reaction products, as established by X-ray diffraction study, are 1D polymeric complexes Pd(mu-OOCMe)(4)M(OH2)(HOOCMe)(2)}(n) (M = Ni-II, Co-II, Cu-II, Mn-II, Zn-II) built of the Pd-II-based paddlewheel units [Pd(mu-OOCMe)(4)M] and linked trough the H- bonded H2O and MeCOOH molecules. (c) 2008 Elsevier B.V. All rights reserved.