| 含有双螺旋链的配位聚合物[Co(dpa)prz0.5]n的合成、晶体结构及磁性质(英文) | |
| Synthesis, Crystal Structure and Magnetic Properties of A Coordination Polymer [Co(dpa)prz0.5]n with Double-Helix Chains | |
| 摘要: | |
| 关键词: 螺旋链 配位聚合物 钴(Ⅱ)配合物 磁性 | |
| 基金项目: | |
| Abstract: A coordination polymer [Co(dpa)prz0.5]n(1) with double-helix chains has been constructed hydrothermally using H2dpa (H2dpa=diphenic acid), prz (prz=piperazine) and Co(NO3)2·6H2O. The structure and magnetic properties of the complex were investigated. The complex crystallizes in triclinic system and P1 space group. Each Co atom is five-coordinated and takes a distorted tetragonal pyramid geometry. Two carboxylates of the H2dpa ligands bridge four Co(Ⅱ) ions to form infinite right-handed or left-handed helical -C-O-Co- chains. The two types of helical chains are interconnected to each other through the Co(Ⅱ) centers to produce double-helix chains. The chains form a 2D sheet through the coordination interaction of prz molecules between adjacent chains. The sheets are further interlinked by hydrogen bond interactions to generate 3D coordination frameworks. Magnetic studies for complex 1 show stronger antiferromagnetic coupling between the Co(Ⅱ) ions. CCDC: 709275. | |
| Keywords: helical chain coordination polymer cobalt(Ⅱ) complex magnetic properties | |
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| 顾金忠,高竹青,窦 伟,唐 瑜,幺金丽.含有双螺旋链的配位聚合物[Co(dpa)prz0.5]n的合成、晶体结构及磁性质(英文)[J].无机化学学报,2009,25(5):920-923. | |
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