辅助配体导向合成两个锌金属配位聚合物:结构,稳定性和荧光性质（英文）
发布时间：2018-07-17 06:22
【摘要】：以二苯-4,4′-二羧酸和六水硝酸锌为原料,在相同反应条件下,通过改变不同的辅助配体(2,2′-二甲基-4,4′-联吡啶和三乙烯二胺),合成出2个金属有机配位聚合物:{[Zn(DBA)(dmbpy)_(0.5)]·2H_2O}_n(1)和[Zn_2(DBA)_2(dabco)]_n(2)(H_2DBA=二苯-4,4′-二羧酸,dmbpy=2,2′-二甲基-4,4′-联吡啶,dabco=三乙烯二胺)。通过元素分析、红外光谱、差热分析、X射线粉末衍射和X射线单晶衍射等手段对配合物进行了结构表征。结果显示,化合物1为二维(4,4)网络结构,2个二维结构在平行方向上通过互锁进一步形成2D→2D的互锁网络结构。化合物2为一维带状结构。热稳定性表明化合物1能够稳定到370℃;而化合物2稳定性差。荧光分析表明常温固态下配合物1和2均发射蓝色荧光,荧光寿命分别为231.4 ns和2.33 ns。
[Abstract]:Under the same reaction conditions, dibenzene-4na-dicarboxylic acid and zinc nitrate hexahydrate were used as raw materials. Two metal-organic coordination polymers, {[Zn (DBA) (dmbpy) _ (0.5)] 2H _ 2O} n (1) and [Zn _ 2 (DBA) _ 2 (dabco)] n (2) (H2DBA = Dmbpyridine), have been synthesized by changing different auxiliary ligands (2H _ 2H _ 2-dimethyl -4N ~ (4) -bipyridyl) and triethylenediamine. (H2DBA = diphenylpyridine (DBA) _ (0.50) -2H _ 2O} n (1) and [Zn2 (DBA) _ 2 (dabco)] n (2). The structures of the complexes were characterized by elemental analysis, infrared spectroscopy, differential thermal analysis, X-ray powder diffraction and X-ray single crystal diffraction. The results show that compound 1 is a two-dimensional (4 ~ 4) network structure, and two two-dimensional structures are interlocked in parallel directions to form a 2D / 2D interlocking network structure. Compound 2 is a one dimensional band structure. Thermal stability indicated that compound 1 was stable to 370 鈩，
本文编号：2129381
[Abstract]:Under the same reaction conditions, dibenzene-4na-dicarboxylic acid and zinc nitrate hexahydrate were used as raw materials. Two metal-organic coordination polymers, {[Zn (DBA) (dmbpy) _ (0.5)] 2H _ 2O} n (1) and [Zn _ 2 (DBA) _ 2 (dabco)] n (2) (H2DBA = Dmbpyridine), have been synthesized by changing different auxiliary ligands (2H _ 2H _ 2-dimethyl -4N ~ (4) -bipyridyl) and triethylenediamine. (H2DBA = diphenylpyridine (DBA) _ (0.50) -2H _ 2O} n (1) and [Zn2 (DBA) _ 2 (dabco)] n (2). The structures of the complexes were characterized by elemental analysis, infrared spectroscopy, differential thermal analysis, X-ray powder diffraction and X-ray single crystal diffraction. The results show that compound 1 is a two-dimensional (4 ~ 4) network structure, and two two-dimensional structures are interlocked in parallel directions to form a 2D / 2D interlocking network structure. Compound 2 is a one dimensional band structure. Thermal stability indicated that compound 1 was stable to 370 鈩，
本文编号：2129381
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