| 二羟基萘二磺酸根构筑的一维链状镉配位聚合物的合成与晶体结构 | ||||||||||
| Synthesis and Crystal Structure of a 1D Chain-Like Cd(Ⅱ) Coordination Polymer Based on Dihydroxynaphthalenedisulfonate | ||||||||||
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| 摘要: 采用常规溶液挥发法，3，6-二羟基-2，7-萘二磺酸二钠盐(Na2H2dhns)、咪唑(imdz)与Cd(NO3)2·4H2O在甲醇-水溶液中反应合成了一种一维镉配位聚合物{[Cd2(dhns)(imdz)4]·H2O}n (1)，并用元素分析、IR、UV、PL和TG等方法进行了表征。经X-射线单晶衍射分析确定了其晶体结构，晶体属单斜晶系，空间群C2/m，晶胞参数a=1.245 97(6) nm，b=1.558 33(9) nm，c=1.629 99(10) nm，β=90.258(6)°，V=3.164 8(3) nm3，Z=4，Mr=831.39，Dc=1.745 g·cm-3，μ=1.534 mm-1，F(000)=1 640，R=0.056 4，wR2=0.140 5，S=1.09。每个Cd(Ⅱ)处于畸变的八面体配位环境，2个八面体共同形成双核金属簇，金属簇经dhns4-四重桥联形成一维配位聚合物。 | ||||||||||
| 关键词: 配位聚合物 镉配合物 晶体结构 二羟基萘二磺酸盐 | ||||||||||
| 基金项目: 福建省教育厅科研项目(No.JK2011042)和泉州师范学院学科建设资金资助。 | ||||||||||
| Abstract: A 1D cadmium(Ⅱ) coordination polymer, {[Cd2(dhns)(imdz)4]·H2O}n (1), was synthesized by reaction of disodium 3,6-dihydroxy-naphthalene-2,7-disulfonate (Na2H2dhns), imidazole (imdz) and Cd(NO3)2·4H2O in a water-methanol solution, and characterized by elemental analysis, IR, UV, PL, TG and single crystal X -ray diffraction. The complex crystallizes in the monoclinic system, space group C2/m, a=1.245 97(6) nm, b=1.558 33(9) nm, c=1.629 99(10) nm, β=90.258(6)°, V=3.164 8(3) nm3, Z=4, Mr=831.39, Dc=1.745 g·cm-3, μ=1.534 mm-1, F(000)=1 640, R=0.056 4, wR2=0.140 5, S=1.09. In 1, dhns4-ligands bridge two edge shared distorted octahedrons, in which Cd(Ⅱ) ions are in the center, forming 1D chains that are further connected by intermolecular hydrogen-bonding interactions, generating a 3D supramolecular network. CCDC: 939692. | ||||||||||
| Keywords: coordination polymer cadmium complex crystal structure dihydroxynaphthalenedisulfonate | ||||||||||
| 投稿时间：2013-06-20 修订日期：2013-11-04 | ||||||||||
| 摘要点击次数: 1754 | ||||||||||
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| 陈延民,解庆范.二羟基萘二磺酸根构筑的一维链状镉配位聚合物的合成与晶体结构[J].无机化学学报,2014,30(3):517-521. | ||||||||||
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