Yang Junli, Li Chengjuan, Li Dacheng, Wang Daqi
School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2007 Dec 12;64(Pt 1):m174. doi: 10.1107/S1600536807065622.
The reaction of MgCl(2), NiCl(2), and Na(2)(i-mnt) (i-mnt is 1,1-dicyano-thene-2,2-dithiol-ate) with 15-crown-5 (15-C-5) leads to an infinite chain polymer, {[NiMg(2)(C(4)N(2)S(2))(2)(C(10)H(20)O(5))(2)]Cl(2)}(n) or {Mg(15-C-5)[Ni(i-mnt)(2)]Cl(2)}(n), which consists of two Mg(15-C-5) complex cations, one Ni(i-mnt)(2) complex anion and two Cl(-) ions per formula unit. In the Ni(i-mnt)(2) complex anion, Ni(2+) is located on a crystallographic mirror plane with a slightly distorted square-planar coordination by four S atoms. In the Mg(15-C-5) complex cations, the Mg and one O atom of the crown lie on mirror planes and the Mg atoms are in sevenfold coordination environments of five O atoms from the crown and two N atoms from two i-mnt anions. The bridging of the two complexes via the Mg-N bonds leads to the formation of one-dimensional chains along the a axis.
氯化镁、氯化镍和二氰基乙烯二硫醇钠（i - mnt为1,1 - 二氰基乙烯 - 2,2 - 二硫醇盐）与15 - 冠 - 5（15 - C - 5）反应生成一种无限链状聚合物{[NiMg₂(C₄N₂S₂)₂(C₁₀H₂₀O₅)₂]Cl₂}ₙ 或 {[Mg(15 - C - 5)]₂[Ni(i - mnt)₂]Cl₂}ₙ，每个化学式单元由两个[Mg(15 - C - 5)]²⁺ 络合阳离子、一个[Ni(i - mnt)₂]²⁻ 络合阴离子和两个Cl⁻ 离子组成。在[Ni(i - mnt)₂]²⁻ 络合阴离子中，Ni²⁺ 位于一个晶体学镜面平面上，通过四个S原子形成略微扭曲的平面正方形配位。在[Mg(15 - C - 5)]²⁺ 络合阳离子中，Mg和冠醚的一个O原子位于镜面平面上，Mg原子处于七重配位环境中，来自冠醚的五个O原子和来自两个i - mnt阴离子的两个N原子。两个络合物通过Mg - N键桥连，沿a轴形成一维链。
