Wang Hui-Ting, Wang Xiao-Li
College of Chemistry and Chemical Engineering, Southeast, University, Nanjing 211189, People's Republic of China.
Acta Crystallogr C Struct Chem. 2015 Apr;71(Pt 4):318-21. doi: 10.1107/S2053229615005239. Epub 2015 Mar 20.
A new cadmium-thiocyanate complex, poly[4-(dimethylamino)pyridin-1-ium [di-μ-thiocyanato-κ(2)N:S;κ(2)S:N-thiocyanato-κN-cadmium(II)]], {(C7H11N2)[Cd(NCS)3]}n, was synthesized by the reaction of cadmium thiocyanate and 4-(dimethylamino)pyridine hydrochloride in aqueous solution. In the crystal structure, each Cd(II) ion is square-pyramidally coordinated by three N and two S atoms from five different thiocyanate ligands, four of which are bridging. The thiocyanate ligands play different roles in the build up of the structure; one role results in the formation of [Cd2(NCS)2] building blocks, while the other links the building blocks and cations via N-H···S hydrogen bonds. The N-H···S hydrogen bonds and weak π-π stacking interactions are involved in the formation of both a two-dimensional network structure and the supramolecular network.
通过硫氰酸镉与4-（二甲氨基）吡啶盐酸盐在水溶液中的反应，合成了一种新型硫氰酸镉配合物，聚[4-（二甲氨基）吡啶-1-鎓[二-μ-硫氰酸根合-κ(2)N:S;κ(2)S:N-硫氰酸根合-κN-镉（II）]]，{(C₇H₁₁N₂)[Cd(NCS)₃]}ₙ。在晶体结构中，每个Cd（II）离子由来自五个不同硫氰酸根配体的三个N原子和两个S原子以四方锥配位，其中四个为桥联。硫氰酸根配体在结构构建中发挥不同作用；一种作用导致形成[Cd₂(NCS)₂]结构单元，而另一种则通过N-H···S氢键连接结构单元和阳离子。N-H···S氢键和弱π-π堆积相互作用参与形成二维网络结构和超分子网络。
