| 氰根桥联CrⅢ-CuⅡ一维配合物{[Cu(cyclam)][Cr(bpb)(CN)2]2·2H2O}n的合成、结构与磁性 | |
| Synthesis, Crystal Structure and Magnetic Properties of a One-Dimensional Cyanide-Bridged CrⅢ-CuⅡ Complex {[Cu(cyclam)][Cr(bpb)(CN)2]2·2H2O}n | |
| 摘要: 基于构筑单元K[Cr(bpb)(CN)2]和[Cu(cyclam)](ClO4)合成了一个氰根桥联的CrⅢ-CuⅡ一维化合物{[Cu(cyclam)][Cr(bpb)(CN)2]2·2H2O}n[cyclam=1,4,8,11-四氮杂环十四烷;bpb2-=1,2-二（2-吡啶甲酰胺基）苯](1), 并通过X-衍射单晶分析表征其结构特征。结果表明：化合物1是由氰根桥联的2种不同金属组成的聚合物, 其结构属于三斜晶系, P1 空间群, a=0.9667 3(19) nm, b=1.345 1(3) nm, c=1.382 0(3) nm, α=77.12(3)°, β=76.93(3)°, γ=82.02(3)°, V=1.699 1(6) nm3, Z=2, Dc=1.567 g·cm-3, μ=1.086 mm-1, F(000)=828, R1=0.0413, wR2=0.1200。磁性研究表明：配合物11中的CrⅢ离子和CuⅡ离子之间存在弱的铁磁耦合作用。 | |
| 关键词: 氰根桥联 晶体结构 磁性 杂金属 | |
| 基金项目: 江苏省高校优势学科建设工程项目和中央高校基本科研业务费专项资金资助项目(No.2014ZDPY25)。 | |
| Abstract: A one-dimensional cyanide-bridged CrⅢ-CuⅡ complex {[Cu(cyclam)][Cr(bpb)(CN)2]2·2H2O}n (cyclam=1, 4,8, 11-tetraazacyclotetradecane, bpb2-=1,2-bis(pyridine-2-carboxamido)-benzenate) (1) has been synthesized by the reaction of building blocks [Cu(cyclam)](ClO4)2 and K[Cr(bpb)(CN)2]. Single crystal X-ray diffraction analysis reveals that complex 1 crystallizes in triclinic space group P1 with a=0.966 73(19) nm, b=1.345 1(3) nm, c= 1.382 0(3) nm, α=77.12(3)°, β=76.93(3)°, γ=82.02(3)°, V=1.699 1(6) nm3, Z=2, Dc=1.567 g·cm-3, μ=1.086 mm-1, F(000)=828, R1=0.041 3, wR2=0.120 0, the structure of complex 1 is a type of polymer with two different metal centers which are alternatively linked by cyanide group. Magnetic investigations indicate that complex 1 exhibits a weak ferromagnetic coupling between CrⅢ and CuⅡ centers through the cyanide bridge. | |
| Keywords: crystal structure cyanide-bridged magnetic property heterometallic | |
| 投稿时间：2014-09-18 修订日期：2015-01-10 | |
| 摘要点击次数: 1840 | |
| 全文下载次数: 1534 | |
| 杨代胜,许丽华,陈会,张丽芳,倪中海,王文峰.氰根桥联CrⅢ-CuⅡ一维配合物{[Cu(cyclam)][Cr(bpb)(CN)2]2·2H2O}n的合成、结构与磁性[J].无机化学学报,2015,31(3):565-570. | |
| 查看全文 查看/发表评论 下载PDF阅读器 | |
| Support information: | |
|
| |
|
| |
|
| |