| 由六亚甲基四胺和柔性芳香羧酸构筑的两个一维配位聚合物的合成及晶体结构 |
| Syntheses, Crystal Structures of Two 1D Coordination Polymers Based on Hexamethylenetetramine and Flexible Aromatic Acids |
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| 摘要: 利用六亚甲基四胺分别与苯氧乙酸、Cu(NO3)2·3H2O及2,4-二氯苯氧乙酸、Zn(NO3)2·6H2O反应,得到了2个新的一维配位聚合物,{[Cu2(pa)4](μ2-hmt)}n (1)和{{{[Zn3(dcpa)4(OH)]2(μ2-dcpa)2}(μ2-hmt)}·5H2O}n (2)(Hpa=苯氧乙酸,Hdcpa=2,4-二氯苯氧乙酸,hmt=六亚甲基四胺)。2个配合物均用元素分析、红外光谱、X射线单晶衍射及差热分析进行了表征。晶体结构分析表明,在配合物1中,4个苯氧乙酸根桥联2个Cu2+形成[Cu2(COO)4]双核结构,相邻的[Cu2(COO)4]双核单元由六亚甲基四胺桥联成一维的"zigzag"链;在配合物2中,6个2,4-二氯苯氧乙酸根和2个OH-桥联6个Zn2+形成六核{[Zn3(dcpa)4(μ3-OH)]2(μ2-dcpa)2}结构单元,然后相邻的六核单元由2个六亚甲基四胺桥联成一维双链结构。 |
| 关键词: 六亚甲基四胺 苯氧乙酸 2,4-二氯苯氧乙酸 Cu2+ Zn2+ 晶体结构 |
| 基金项目: 国家自然科学基金(No.21461011,31560712)、江西省自然科学(青年)基金(No.20132BAB213002,20142BAB214017,20151BAB204014)和人事部留学人员科技活动项目择优资助(启动类) |
| Abstract: Two 1D coordination polymers of {[Cu2(pa)4](μ2-hmt)}n (1) and {{{[Zn3(dcpa)4(OH)]2(μ2-dcpa)2}(μ2-hmt)}·5H2O}n (2) (Hpa=phenoxyacetic acid, Hdcpa=2,4-dichlorophenoxy acetic acid, hmt=hexamethylenetetramine) were obtained by the reactions of hexamethylenetetramine with phenoxy acetic acid and Cu(NO3)2·3H2O, or 2,4-dichlorophenoxy acetic acid and Zn(NO3)2·6H2O, respectively. The complexes were characterized by elemental analysis, IR, single X-ray diffraction and thermogravimetric analyses. The crystal structural analysis revealed that, in complex 1, two Cu2+ ions are bridged by four pa ligands to form a[Cu2(COO)4] unit, and the neighboring[Cu2(COO)4] units are further connected by hmt ligands to form a 1D zigzag chain; while in complex 2, six Zn2+ ions are bridged by six dcpa and two OH- ligands to form hexanuclear {[Zn3(dcpa)4(μ3-OH)]2(μ2-dcpa)2} subunits which are further connected by hmt ligands to form a 1D double chain. |
| Keywords: hexamethylenetetramine phenoxy acetic acid 2,4-dichlorophenoxy acetic acid Cu2+ Zn2+ crystal structure |
| 投稿时间：2015-12-17 修订日期：2016-03-23 |
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| 袁厚群,肖伟,李艳霞,胡春燕,鲍光明.由六亚甲基四胺和柔性芳香羧酸构筑的两个一维配位聚合物的合成及晶体结构[J].无机化学学报,2016,32(5):899-905. |
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