Four novel alkaline-earth metal coordination polymers with networks controlled by the diverse coordination modes of amino-sulfonate ligand: Synthesis, crystal structures and luminescent properties

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• 作者：Zhu-Lin Xie^a ; ^b ; Yong-Rong Xie^a ; ^{yongrongxie@gmail.com} ; ^{yongrongxie@163.com} ; Guo-Hai Xu^a ; Zi-Yi Du^a ; Zhong-Gao Zhou^a ; Wu-Leng Lai^a
• 关键词：4 ; 4&prime ; -Diamino-2 ; 2&prime ; -stilbenedisulfonic acid ; Crystal structure ; Alkaline-earth metal coordination polymers ; Luminescent properties
• 刊名：Inorganica Chimica Acta
• 出版年：2012
• 期刊代码：40_00201693
• 类别：ch
• 出版时间：1 April, 2012
• 卷：384
• 期：Complete
• 页码：117-124
• 文件大小：1537 K

摘要

Four novel alkaline-earth metal coordination polymers based on 4,4鈥?diamino-2,2鈥?stilbenedisulfonic acid ligand (H₂dsd), namely, [Mg(dsd)(H₂O)₄]_n (1), {[Ca(dsd)(H₂O)₂]路H₂O}_n (2), {[Sr(dsd)(H₂O)₆]路H₂O}_n (3), [Ba(dsd)(H₂O)₂]_n (4), were synthesized under hydrothermal conditions and structurally characterized by elemental analysis, IR, single-crystal X-ray diffraction and thermogravimetric analysis. These complexes exhibit various polymeric networks due to the diverse coordination modes of dsd^{2鈭?/sup>. Complexes 1 and 3 display a 1D zigzag chain structure with dsd2鈭?/sup> group as a 渭-bis(monodentate) ligand (denoted as 渭₂-畏1畏1 ligand). Complex 2 is a 1D ribbon chain coordination polymer in which dsd2鈭?/sup> shows the 渭₃-畏1畏2畏1 coordination mode, and complex 4 is a 2D coordination polymer in which dsd2鈭?/sup> presents the unusual 渭₄-畏1畏2畏1畏1 coordination mode. The present four complexes exhibit different fluorescent emissions in the solid state at room temperature.}