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刚性配体3-噻吩-5-三氟甲基-2,3-二氢-1-H吡唑合成的2个Keggin型超分子化合物 被引量:2

Two new Keggin-based supramolecular compounds synthesed from rigid ligand 3-thiophen-2yl-5-trifluoromethyl-2,3-dihydyo-1-H-pyzazole
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摘要 选用新颖的有机配体3-噻吩-5-三氟甲基-2,3-二氢-1-H吡唑(L),在水热条件下成功得到2个新的基于Keggin多酸的超分子化合物,{[Ag(L)_2]_3[PMo_(12)O_(40)]}·3H_2O(1)和{[Ag(L)_2]_3[HSiMo_(12)O_(40)]}·3H_2O(2).通过红外光谱、元素分析和单晶X-射线对化合物1和2的结构进行了表征.化合物1和2同构,包含1个孤立的Keggin多阴离子和3个金属-有机亚单元[Ag(L)2]+.其中多酸阴离子和[Ag(L)2]+片段通过氢键作用力交替连接形成1个一维超分子链.相邻一维链进一步通过氢键连接成二维超分子层状结构.光催化和电化学性质表明,化合物1和2具有相同的电化学性能. Using a new organic ligand 3-thiophen-2 yl-5-trifluoromethyl-2,3-dihydyo-1-H-pyzazole(L),two new Keggin-based supramolecular compounds,namely,{[Ag(L)_2]_3[PMo_(12)O_(40)]}·3 H_2 O(1)and{[Ag(L)_2]_3[HSiMo_(12)O_(40)]}·3 H_2O(2),were synthesized under hydrothermal conditions.Compounds1 and 2 have been characterized by IR spectra,elemental analyses and single-crystal X-ray diffraction.Compounds 1 and 2 are isostructural,containing one discrete Keggin anion and three metal-organic subunits[Ag(L)2]+.The Keggin anions and [Ag(L)2]+ subunits arranges alternately through hydrogen bonding interactions,forming a supramolecular 1 Dchain.Adjacent 1 Dchains link each through hydrogen bonding interactions to further construct a supramolecular 2 Dlayer.We studied the electrochemical and photocatalytic properties of compounds 1 and 2.
机构地区 渤海大学化学系
出处 《分子科学学报》 CAS CSCD 北大核心 2018年第1期14-20,共7页 Journal of Molecular Science
基金 国家自然科学基金资助项目(21571023) 辽宁省高等学校青年学者成长计划项目(LJQ2012097)
关键词 Keggin多酸 水热合成 超分子结构 电化学 光催化 Keggin POM hydrothermal syntheses supramolecular structure electrochemistry photocatalysis
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