| 三个3,5-二(4-吡啶)1,2,4-三唑构筑的Co(Ⅱ)配合物的合成,晶体结构及其热稳定性 |
| Syntheses, Structures and Thermal Stabilities of Three Co(Ⅱ) Complexes Constructed from 3,5-Bis(4-pyridyl)-1,2,4-triazolyl |
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| 摘要: 采用3,5-二(4-吡啶)1,2,4-三唑(Hbpt)为配体与钴盐反应,在水热法条件下成功合成了3个配合物,分别是:[Co(Hbpt)2(HCOO)2(H2O)2]n·4nH2O (1),[Co(Hbpt)2(HCOO)2(H2O)2]n (2)和[Co(bpt)2(H2O)4]n·2nH2O (3),并通过X-射线单晶衍射和红外对它们进行了表征。配合物1和2均为三斜晶系,P1 空间群,配合物3为单斜晶系,P21/c空间群。中心金属Co(Ⅱ)都是六配位,每个Co(Ⅱ)分别与2个Hbpt配体桥联而形成零维的结构单元,这些结构单元通过氢键和π-π堆积弱作用进一步连接而形成三维超分子网络结构。此外,还对配合物1和3的热稳定性做了分析。 |
| 关键词: 3,5-二(4-吡啶)1,2,4-三唑 配位聚合物 晶体结构 氢键 π-π堆积作用 热稳定性 |
| 基金项目: 浙江省自然科学基金(No.LY12B01002)、浙江师范大学“浙江省省属高校化学重中之重学科”和“先进催化材料教育部重点实验室”开放 课题基金项目资助。 |
| Abstract: Three Co(Ⅱ) complexes constructed from 3,5-bis(4-pyridyl)-1,2,4-triazolyl (Hbpt), namely [Co(Hbpt)2(HCOO)2(H2O)2]n·4nH2O (1),[Co(Hbpt)2(HCOO)2(H2O)2]n (2) and [Co(bpt)2(H2O)4]n·2nH2O (3), have been hydrothermally synthesized and structurally characterized by IR spectroscopy and single crystal X-ray diffraction. The X-ray crystallographic analyses show that all of them present three-dimensional supramolecular frameworks in which crystal configurations are linked by π-π stacking interactions and strong intermolecular hydrogen-bonding interactions. In addition, the thermogravimetric analyses (TGA) for complexes 1 and 3 are also discussed. CCDC: 1001364, 1; 1001365, 2; 1001366, 3. |
| Keywords: 3,5-bis(4-pyridyl)-1,2,4-triazolyl coordination polymers crystal structure hydrogen bonds π-π stacking TGA property |
| 投稿时间：2014-05-15 修订日期：2014-06-17 |
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| 张优,赵灿,温一航.三个3,5-二(4-吡啶)1,2,4-三唑构筑的Co(Ⅱ)配合物的合成,晶体结构及其热稳定性[J].无机化学学报,2014,30(11):2645-2652. |
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