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.
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