2-[[(4-吡啶)甲基]硫]-1H-苯并咪唑Ni(Ⅱ)配合物的合成、晶体结构及热稳定性 |
Synthesis, Crystal Structure and Thermal Stability of Ni(Ⅱ) Complex with 2-[[(4-Pyridyl)methyl]thio]-1H-benzimidazole |
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摘要: 本文报道了[NiL2(NCS)2(CH3OH)2](L=2-[[(4-吡啶)甲基]硫]-1H-苯并咪唑)配合物的合成,并通过IR、X-射线单晶衍射、热稳定性进行了表征。晶体结构测试表明:该配合物属于单斜晶系,空间群P21/n,晶胞参数:a=0.944 20(12) nm,b=1.357 33(17) nm,c=1.341 64(17) nm,β=97.983 0(10)°,V=1.702 8(4) nm3,Z=2,F(000)=748,Dc=1.407 g·cm-3,Final GooF=1.027,R1=0.046 8,wR2=0.107 1。中心Ni(Ⅱ)原子采用六配位,分别与2个2-[[(4-吡啶)甲基]硫]-1H-苯并咪唑上的2个N原子,2个硫氰酸根的2个N原子和2个甲醇分子上的2个O原子进行配位。在Ni(Ⅱ)基本配位单元之间存在N…H-O氢键,形成一维双链堆积结构。 |
关键词: 镍(Ⅱ)配合物 硫氰酸根 晶体结构 热稳定性分析 |
基金项目: |
Abstract: A nickel(Ⅱ) complex [NiL2(NCS)2(CH3OH)2] (L=2-[[(4-Pyridyl)methyl]thio]-1H-benzimidazole) was synthesized and characterized by IR spectra, X-ray diffraction and TG analysis. Crystal data for this complex: monoclinic, space group P21/n, a=0.944 20(12) nm, b=1.357 33(17) nm, c=1.341 64(17) nm, β=97.983 0(10)°, V=1.702 8(4) nm3, Z=2, F(000)=748, Dc=1.407 g·cm-3, Final GooF=1.027, R1=0.046 8, wR2=0.107 1. The crystal structure shows the nickel(Ⅱ) atom is six-coordinated with two nitrogen atoms from two 2-[[(4-Pyridyl)methyl]thio]-1H-benzimidazole, the other two nitrogen atoms from two thiocyanate radical and two oxygen atoms from methanol molecules. The double-chain one dimensional motifs are formed by hydrogen bonds N…H-O conecting different nickel(Ⅱ) units. CCDC: 792992. |
Keywords: nickel(Ⅱ) complex thiocyanate radical crystal structure thermal stability analysis |
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刘家成,洪慧琴,宋雪艳,楚朝霞,陈立伟.2-[[(4-吡啶)甲基]硫]-1H-苯并咪唑Ni(Ⅱ)配合物的合成、晶体结构及热稳定性[J].无机化学学报,2011,27(6):1077-1080. |
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