Hydrothermal synthesis, structures and properties of metal phosphonates based on m-xylylenediphosphonic acid

被引：0
作者：
Yu Yang
Wei Xu
Yuanxin Li
Meng Liu
Yiheng Zhang
Lei Wang
机构：
[1] KeyLaboratoryofEco-chemicalEngineering,MinistryofEducation,CollegeofChemistryandMolecularEngineering,QingdaoUniversityofScienceandTechnology
来源：
ChineseScienceBulletin | 2014年 / 59卷 / 34期
关键词：
Metal phosphonate; Open framework; Hydrothermal synthesis; Structural characterization;
D O I：
暂无
中图分类号：
O641.4 [络合物化学（配位化学）];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, a series of new metal phosphonates were hydrothermally synthesized and structurally characterized based on m-xylylenediphosphonic acids(H4L), including[M(H2L)(bpy)](M = Mn 1, Co 2), [MH2L)(phen)](M = Co3, Cu 4), and [Cu2(H2L)2(bpy00)2] 5(bpy = 2,20-bipyridine,phen = 1,10-phenanthroline, bpy00= 4,40-dimethyl-2,20-bipyridine). X-ray diffraction indicated that compounds 1 and2 were isomorphic. Complexes 3 and 4 were shown to crystallize in different space groups but had similar crystallographic units. In the complexes, H4 L was seen to partially deprotonate to afford H2L2-. The H2L2-ligands in 1–4functioned as tetradentate ligands with each phosphonate group adopting bidentate coordination mode with two M centers to generate a 2D layer. In addition, the H2L2-anions in5 functioned as tridentate ligands with one phosphonate group adopting the bidentate mode and another phosphonate group adopti ng the monodentate mode, thus linking three Cu atoms to provide a 1D chain. The IR and thermal stabilities of these compounds were subsequently examined.
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页码：4720 / 4727
页数：8
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