Three ternary coordination polymers (CPs), namely, [Cd2(BrIP)2(BITMB)(H2O)2]·(THF)2·H2O}n (CP1), [Cu(BrIP)(BITMB)(H2O)]n (CP2), [Ni(BrIP)(BITMB)(H2O)]·(THF)(H2O)2}n (CP3) were synthesized by solvothermal reactions between H2BrIP (5-bromoisophthalate), BITMB (1,3-bis(imidazol-1-ylmethyl)-2,4,6-trimethylbenzene) and respective metal nitrates. Single crystal X-ray diffraction studies reveal a variety of supramolecular interactions such as inter/intra molecular hydrogen bonding, C–H⋯π, and π⋯π stacking in the 1D interwoven metal organic triple helical motifs of CP1 and sql networks of CP2 and CP3. Solvents employed for the synthesis of these CPs may be acting as structure directing agents. The photocatalytic properties of all three CPs, for the decomposition of Metanil Yellow by dilute hydrogen peroxide in the presence of visible light, have been evaluated and up to 89% dye removal from aqueous solution was achieved in the case of CP2. Solid state fluorescence studies disclose the promising luminescence properties of synthesized CPs.
三种三元配位聚合物(CP)分别是[Cd2(BrIP)2(
BITMB)(
H2O)2]·(THF)2· }n (CP1)、[Cu(BrIP)(
BITMB)( )]n (CP2)和[Ni(BrIP)(
BITMB)( )]·(THF)( )2}n (CP3),它们是通过H2BrIP(5-
溴异酞酸酯)、
BITMB(1,3-双(
咪唑-1-基甲基)-2,4,6-三甲基苯)和相应的
金属
硝酸盐之间的溶剂热反应合成的。单晶X射线衍射研究表明,CP1和CP2、CP3的1D
金属有机三螺旋图案和sql网络中存在多种超分子相互作用,如分子间/分子内氢键、C-H⋯π和π⋯π堆积。合成这些CP所使用的溶剂可能起到了结构导向剂的作用。三种CP的光催化性能(在可见光照射下,用稀
过氧化氢分解甲
苯胺黄)已经过评估,其中CP2在
水中可去除高达89%的
染料。固态荧光研究揭示了合成CP的发光性能。