Self-assembly and structures of new lanthanide coordination polymers with 1,3-phenylenebis(oxy)diacetic acid

Self-assembly and structures of new lanthanide coordination polymers with 1,3-phenylenebis(oxy)diacetic acid
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1,3-亚苯基双(氧基)二乙酸新型镧系配位聚合物的自组装及结构

DOI:
10.1016/j.poly.2014.01.030
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发表时间:
2014-04
期刊:
影响因子:
2.6
通讯作者:
chongbo Liu
chongbo Liu
中科院分区:
化学3区
文献类型:
--
作者:
Gao-Shan Yang;chongbo Liu

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七种Ln(III)配位聚合物,即[Ln(PODA)(FA)(H2O)]n[Ln = La(1),Ce(2),Pr(3),Nd(4),Eu(5)]和[Ln(PODA)1.5(phen)]n[Ln = La(6),Pr(7)](H2 PODA = 1,3-亚苯基双(氧基)二乙酸,HFA =甲酸,phen = 1,在水热条件下合成了邻菲咯啉(Phenanthroline,10-Phenanthroline),并通过红外光谱、元素分析、X射线单晶衍射、紫外-可见光谱和粉末X射线衍射对其进行了表征。结构分析表明,1 - 5为同构结构,具有(32.42.52)2(38.420.524.614)拓扑结构,由单链和四链螺旋链组成; 6和7为(44.62)拓扑结构,具有相似的层状结构,但仅由一种单链螺旋链组成。此外,还对配合物3和7的热稳定性以及配合物5的发光性质进行了初步研究。
Seven Ln(III) coordination polymers, namely [Ln(PODA)(FA)(H2O)]n[Ln = La(1), Ce(2), Pr(3), Nd(4), Eu(5)] and [Ln(PODA)1.5(phen)]n[Ln = La(6), Pr(7)] (H2PODA = 1,3-phenylenebis(oxy)diacetic acid, HFA = formic acid, phen = 1,10-phenanthroline) have been synthesized under hydrothermal conditions and characterized by IR spectroscopy, elemental analysis, single crystal X-ray crystallography, UV–Vis spectroscopy and powder X-ray diffraction analysis (PXRD). Structural analysis reveals that1–5are isostructural and exhibit 3-D frameworks with a (32.42.52)2(38.420.524.614) topology, which comprise single- and quadruple-strand helical chains; while6and7show similar layer structures with a (44.62) topology, however, they only consist of one kind of single-strand helical chain. In addition, the thermal stabilities of complexes3and7and the luminescent properties of complex5have been briefly investigated.
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