| 四例基于1, 4-双(3-/4-吡啶基)-2, 3-二氮杂-1, 3-丁二烯的配位聚合物的组装和性质:金属离子对结构的影响 | |
| Assembly and Properties of Four Intriguing One-Dimensional Coordination Polymers with 1,4-Bis(3- or 4-pyridyl)-2,3-diaza-1,3-butadiene Ligands: Effect of Central Metal Ions on the Structures | |
| 摘要: 通过水热合成法,合成了4例由混合配体构筑的的过渡金属配位聚合物:{[Zn(4-bpdb)(pnba)2]·4H2O}n(1),[Cd(4-bpdb)(pnba)2]n(2),{[Cd2(3-bpdb)2(OAc)4]·5H2O}n(3),和{[Co(3-bpdb)(pnba)2(H2O)2]·2H2O}n(4)(4-bpdb=1,4-双(4-吡啶基)-2,3-二氮杂-1,3-丁二烯,3-bpdb=1,4-双(3-吡啶基)-2,3-二氮杂-1,3-丁二烯,Hpnba=对硝基苯甲酸,HOAc=乙酸),并且分别用X-射线单晶衍射、元素分析、红外光谱、热差分析、X-射线粉末衍射表征了这4个配合物。晶体结构分析表明,配合物1显示出一维锯齿形链状结构,金属锌(Ⅱ)离子具有稍微变形的四面体配位几何构型。而配合物2和3却展现出一维梯状双链结构,镉(Ⅱ)离子展现出五角双锥几何构型。而配合物4却拥有一维直线型链状结构,其中钴(Ⅱ)离子拥有八面体几何形状。上述结果说明,金属离子的几何构型可能对配合物的结构具有重要的影响。此外,还研究了配合物1~3的荧光性质。 | |
| 关键词: 双吡啶配体 配位聚合物 晶体结构 荧光性质 | |
| 基金项目: 国家自然科学基金(No.21371151,21461029,21561033),云南省博士研究生学术新人奖项目资助。 | |
| Abstract: Four mixed-ligand coordination polymers, {[Zn(4-bpdb)(pnba)2]·4H2O}n (1), [Cd(4-bpdb)(pnba)2]n (2), {[Cd2(3-bpdb)2(OAc)4]·5H2O}n (3), and {[Co(3-bpdb)(pnba)2(H2O)2]·2H2O}n (4), (4-bpdb=1,4-bis(4-pyridyl)-2,3-diaza-1,3-butadiene, 3-bpdb=1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene, Hpnba=p-nitrobenzoic acid, HOAc=Acetic acid) were synthesized and characterized. Single crystal X-ray analysis revealed that complex 1 featured a 1D zigzag chain structure and the Zn(Ⅱ) ions adopted slightly distorted tetrahedral coordination geometry. While polymers 2 and 3 possessed 1D ladder-like double chain structures with Cd(Ⅱ) ions in pentagonal bipyramidal coordination geometry. Polymer 3 displayed a 1D linear chain structure where Co(Ⅱ) ions had octahedral geometry. Moreover, the elemental analysis, infrared spectroscopy, thermal analysis, PXRD, and photoluminescence properties of the complexes were also investigated. | |
| Keywords: bis-pyridyl ligand coordination polymer crystal structure fluorescent property | |
| 投稿时间：2015-07-06 修订日期：2015-09-19 | |
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| 周杰,董顺芳,乔永锋,杜琳,闫桐,谢明进,赵琦华.四例基于1, 4-双(3-/4-吡啶基)-2, 3-二氮杂-1, 3-丁二烯的配位聚合物的组装和性质:金属离子对结构的影响[J].无机化学学报,2015,31(11):2095-2102. | |
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