以氯化镉、烟碱(Nicotine)为原料在N,N-二甲基甲酰胺(DMF)溶液中反应,合成了1个新的一维链状Cd(Ⅱ)配聚物[Cd3(μ-Cl)6(Nicotine)2(DMF)2(H2O)2]n,用红外光谱、粉末X衍射、X-射线单晶衍射和热重分析对配合物进行了表征.X-射线单晶衍射表明,配合物属单斜晶系,空间群P21,晶胞参数:a=0.998 02(19) nm,b=1.836 89(15) nm,c=1.082 6(2) nm,β=95.809(3).,V=1.9745 (5)nm3,Z=2,μ(Mo Kα)=2.045 mm-1,F(000)=1 044.0,R1=0.0499,wR2=0.1188[1＞2σ(1).配合物中镉离子位于扭曲的配位八面体中心,相邻镉离子通过2个氯离子桥连形成了一维链结构,Nicotine、DMF、H2O占据配位八面体的剩余配位点,配聚物一维链平行于a轴.室温固态荧光测试显示,配聚物在448.5、573 nm处具有强的荧光发射.%A 1D chain Cd(Ⅱ) coordination polymer[Cd3(μ-Cl)6(Nicotine)2(DMF)2(H20)2]n(Where Nicotine=(3-[(2S)-l-methylpyrrolidin-2-yl]pyridine), DMF =N,N-dimethylfonnamide) has been synthesized in DMF solution with nicotine and CdCl2·2.5H2O. The crystal structure of the polymer is characterized by single-crystal X-ray diffraction analysis, FTIR, thermogravimetric analysis (TGA) and X-ray powder diffraction (XRPD). The crystal belongs to monoclinic system, space group P21. The cell parameters are: a=0.998 02(19) nm, 6=1.836 89(15) nm, c=1.0826(2) nm, 0=95.809(3)°, and V=1.9745(5) nm3, Z=2,μ(Mo Kα)=2.045 mm-1, F(000)=l 044.0, Rl,=0.0499, wR2=0.118 8 (I>2σ(I)). Three Cd(II) atoms locate in three distorted coordination octahedron respectively. The Cd(II) atoms bridged by fi-Cl to form a ID chain, and Nicotine, DMF, H20 occupying the remaining coordination site of the approximately octahedral. The ID chain extends in the a direction. The experimental results show that the title complex has good luminescence property and can be used as potential optical materials. CCDC: 819349.
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