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利用六亚甲基四胺分别与苯氧乙酸、Cu(NO_3)_2·3H_2O及2,4-二氯苯氧乙酸、Zn(NO_3)_2·6H_2O反应,得到了2个新的一维配位聚合物,{[Cu_2(pa)_4](μ_2-hmt)}_n(1)和{{{[Zn_3(dcpa)_4(OH)]_2(μ_2-dcpa)_2}(μ_2-hmt)}·5H_2O}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Cu~(2+)形成[Cu_2(COO)_4]双核结构,相邻的[Cu_2(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Zn~(2+)形成六核{[Zn_3(dcpa)_4(μ_3-OH)]2(μ_2-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。
Two new one-dimensional complexes were obtained by the reaction of hexamethylenetetramine with phenoxyacetic acid, Cu (NO_3) _2 · 3H_2O, 2,4-dichlorophenoxyacetic acid and Zn (NO_3) _2 · 6H_2O respectively Polymer, {[Cu_2 (pa) _4] (μ_2-hmt)} n (1) and {{{[Zn_3 (dcpa) _4 (OH)] _2 (μ_2-dcpa) _2} (μ_2-hmt) 5H 2 O} n (2) (Hpa = phenoxyacetic acid, Hdcpa = 2,4-dichlorophenoxyacetic acid, hmt = hexamethylene tetramine). The two complexes were characterized by elemental analysis, IR, single crystal X-ray diffraction and differential thermal analysis. The crystal structure analysis showed that in the complex 1, four Cu 2 (2+) bridges the dinuclear structure [Cu 2 (COO) 4] with four phenoxyacetates, and the adjacent [Cu 2 COO 4] From the hexamethylenetetramine bridged into one-dimensional “zigzag ” chain; In complex 2, 6 2,4-dichlorophenoxyacetate and two OH ~ - bridge six Zn ~ (2+) to form the hexa-nuclear {[Zn_3 (dcpa) _4 (μ_3-OH)] 2 (μ_2-dcpa) _2} structural unit, and then the adjacent hexahedral units are bridged by two hexamethylenetetramine One-dimensional double-stranded structure.