| 2-乙酰基吡啶缩异烟酰腙镍(Ⅱ)和铜(Ⅱ)配合物的合成、晶体结构与性质 |
| Syntheses, Crystal Structures and Properties of Nickel(Ⅱ) and Copper(Ⅱ) Complexes with2-Acetylpyridine Isonicotinoyl Hydrazone Schiff Base |
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| 摘要: 采用常规溶液法合成了2-乙酰基吡啶缩异烟酰腙镍配合物[NiL2](1)和铜配合物[Cu(Ac)L](2),采用元素分析、红外光谱、紫外光谱、荧光光谱和热重分析以及X-射线单晶衍射分析进行了表征.结果表明,1的晶体属正交晶系,Aba2空间群,晶胞参数a=1.2059(3)nm,b=2.0741(5)nm,c=0.9115(2)nm,V=2.2798(10)nm3,Z=4;中心离子Ni(Ⅱ)的配位数为6,它处于畸变八面体配位环境.2属单斜晶系,P21/c空间群,晶胞参数a=0.86477(13)nm,b=1.3383(2)nm,c=1.3631(2)nm,β=105.650(4)°,V=1.5190(4)nm3,Z=4;中心离子Cu(Ⅱ)的配位数为5,它处于畸变四方锥配位环境,吡啶基与金属配位的结果使配合物形成一种Z形配位聚合物.配合物有很高的热稳定性,分解温度分别为340℃(1)和296℃(2).2-乙酰基吡啶缩异烟酰腙没有发光性质,而配合物1和2均可发射紫色荧光. |
| 关键词: 异烟酰腙 配合物 晶体结构 荧光性质 |
| 基金项目: 泉州师范学院学科建设资金和国家级大学生创新创业训练计划项目(201310399018)资助 |
| Abstract: The nickel(Ⅱ) and copper(Ⅱ) complexes [NiL2] (1) and [Cu(Ac)L] (2) were synthesized by reaction of 2-acetylpyridine isonicotinoyl hydrazone Schiff base(HL) with metal acetate, and characterized by elemental analysis, IR, UV-Vis, FLspectra, TGA and X-ray crystal diffraction. The crystal of 1 belongs to the orthorhombic system,space group Aba2 with cell parameters a=1.2059 (3) nm, b=2.0741(5) nm, c=0.9115 (2) nm, V=2.2798 (10) nm3, Z=4, Mr=537.21, Dc=1.565 g·cm-3, F(000)=1113 and the crystal of 2 belongs to the monoclinic system,space group P21/c with cell parameters a=0.86477(13) nm, b=1.3383(2) nm, c=1.3631(2) nm, β=105.650 (4)°, V=1.5190(4) nm3, Z=4, Mr=361.85, Dc=1.582 g·cm-3, F(000)=740. The tests showed the two complexes displayed good thermal stability below 340 ℃(1)和296 ℃(2), respectively. The complexes exhibits blue luminescence with emission maximum at 430 and 428 nm at room temperature, respectively. CCDC: 952992, 1; 993273, 2. |
| Keywords: isonicotinoyl hydrazonel complexes crystal structure fluorescence properties |
| 投稿时间：2014-06-27 修订日期：2014-09-22 |
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| 陈延民,解庆范,刘金花,何雪倩,张琼如.2-乙酰基吡啶缩异烟酰腙镍(Ⅱ)和铜(Ⅱ)配合物的合成、晶体结构与性质[J].无机化学学报,2015,31(1):74-80. |
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