کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1303883 1498955 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two new 2D coordination polymers constructed from 2, 6-dimethylpyridine-3, 5-dicarboxylic acid ligands and alkaline earth metals (Sr and Ba)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Two new 2D coordination polymers constructed from 2, 6-dimethylpyridine-3, 5-dicarboxylic acid ligands and alkaline earth metals (Sr and Ba)
چکیده انگلیسی


• Two compounds constructed from H2MPDC ligand and alkaline earth metals.
• Both the two compounds are linked by 1D chains to form a 2D layer.
• In compound 2, it contains interesting chiral helical chains.
• Both compound 1 and 2 exhibit strong blue photoluminescence properties.

Two new alkaline earth metals coordination polymers, namely, [Sr(C9NO4H7)(H2O)2] 1 and [Ba(C9NO4H7)(H2O)2] 2 have been constructed under solvothermal conditions, employing 2, 6-dimethylpyridine-3, 5-dicarboxylic acid (H2MPDC) as organic ligand. Both the two compounds have been characterized by thermogravimetric analysis, IR spectroscopy, elemental analysis and single-crystal X-ray diffraction analyses. The results of crystal structural analysis indicate that compound 1 shows infinite chains which extend into two-dimensional (2D) sheets by μ4-MPDC2 −. Compound 2 is also a 2D layer structure and in the intralayer regions parallel left- and right-handed helical chains exist. In addition, compounds 1 and 2 exhibit strong phosphorescent emissions in the solid state at room temperature.

Structural view of the coordination polymer [Ba(C9NO4H7)(H2O)2] (2). For compound 2, the [BaO8] units are connected with μ5-MPDC2 − ligands to form an interesting chiral helical chain, and the adjacent chiral helical chains are further connected by the μ5-MPDC2 − bridges to form a 2-D layer.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganic Chemistry Communications - Volume 35, September 2013, Pages 307–310
نویسندگان
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