Assembly of Soft Metal Complexes of an O<sub>4</sub>S<sub>2</sub>-Macrocycle Displaying Endocyclic Monomer, Dumbbell-Like Dimer, and Endo-/Exocyclic Polymer Structures
作者:Huiyeong Ju、Shim Sung Lee
DOI:10.1021/cg3008987
日期:2012.10.3
structures of 1–5, reactions of L with CuBr and AgSCN afforded a double-stranded 1D network [(Cu2Br2)L2]·2CH2Cl2}n (6) linked with a rhomboidal Cu2Br2 cluster and an endo-/exocyclic 1D network [Ag4L2(SCN)4]n (7), respectively. The latter complex features an unusual fishbone-like structure in which endocyclic silver(I) complexes are attached to a “looped” exocyclic backbone of type Ag-(1,3-μ2-SCN)2-Ag-(1
报道了O 4 S 2-供体大环L与硫族软金属离子Ag +,Cu +,Hg 2+和Pd 2+的配位行为的比较研究。七个复合物(X射线结构1 - 7已经确定,以及一系列结构类型和协调模式,包括离散的连续形式的,单-到多核,和内切涉及M-S键环外结构)被提出。首先,L与AgClO 4,Hg(NO 3)2和K 2 PdCl的反应4提供了典型的环内1:1配合物[Ag L ] ClO 4(1),没有阴离子结合,以及[Hg L(NO 3)2 ](2)和[Pd L Cl 2 ](3),阴离子结合。无阴离子配合物1与不同的间隔基配体(L':dabco = 1,4-二氮杂双环[2.2.2]辛烷和bpp = 1,4-双(4-吡啶基)哌嗪)进一步反应导致形成有趣的“哑铃”状复合物[Ag 2 L 2(dabco)](ClO 4)2(4)和[Ag 2 L 2(bpp)](ClO 4)2(5),分别显示[(L Ag)-L'