| 以烟酸为配体的铜配合物的合成、晶体结构及磁学性质 |
| Synthesis, Crystal Structure and Magnetic Property of a Copper(Ⅱ) Coordination Polymer Constructed from Nicotinic Acid |
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| 摘要: 以氯化铜和烟酸(Hnic)为原料,在水热条件下得到了一个配位聚合物[Cu2(nic)4(H2O)]n(1),并利用元素分析、红外光谱以及X-射线单晶洐射对其进行了表征。该晶体属单斜晶系,P21/c空间群,a=1.071 56(3) nm,b=1.958 79(6) nm,c=1.379 50(3) nm,β=104.498 (2),V=2.803 31(13) nm3,Dc=1.501 g·cm-3,Z=4,F(000)=1 280,Goof=1.014,R1=0.041 7,wR2=0.113 2。单晶结构分析显示,相邻的2个Cu(Ⅱ)离子通过2个羧基和1个水分子体桥联形成双核铜单元,双核铜单元再通过烟酸配体连接形成五连接的三维(44·66)结构的金属有机骨架。变温磁化率研究显示,双核单元内铜离子之间存在反铁磁相互作用。 |
| 关键词: 铜配合物 烟酸 晶体结构 磁性 |
| 基金项目: 国家自然科学基金(No.20971004, 21271106)和教育部科学技术重点项目(No.210102)资助项目。 |
| Abstract: A new three-dimensional (3D) coordination polymer of[Cu2(nic)4(H2O)]n (1) (Hnic=nicotinic acid) has been prepared and characterized by elemental analysis, IR spectroscopy, and single-crystal X-ray diffraction. The crystal is of monoclinic, space group P21/c with a=1.071 56(3) nm, b=1.958 79(6) nm, c=1.379 50(3) nm, β=104.498 (2)°, V=2.803 31(13) nm3, Dc=1.501 g·cm-3, Z=4, F(000)=1 280, Goof=1.014, R1=0.041 7, wR2=0.113 2. Complex 1 shows a 3D uninodal 5-connected framework with (44·66) topology. Moreover, Magnetic susceptibility measurements demonstrate that complex 1 exhibits antiferromagnetic interaction within the binuclear units. CCDC: 921590. |
| Keywords: Cu(Ⅱ) complex nicotinic acid crystal structure magnetism |
| 投稿时间：2013-01-26 修订日期：2013-03-30 |
| 摘要点击次数: 2426 |
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| 刘光祥.以烟酸为配体的铜配合物的合成、晶体结构及磁学性质[J].无机化学学报,2013,29(9):1914-1920. |
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