联苯二甲酸构筑的镍配合物的合成、晶体结构及对罗丹明B的光催化性能
Nickel Complex Constructed by Biphenyldicarboxylic Acid: Synthesis, Crystal Structure and Photocatalytic Activity of Rhodamine B
作者单位E-mail
李姗姗 首都师范大学化学系, 北京 100048  
张美娜 首都师范大学化学系, 北京 100048  
李铮 首都师范大学化学系, 北京 100048  
李夏 首都师范大学化学系, 北京 100048 xiali@cnu.edu.cn 
摘要: 通过水热方法获得了2个镍配合物:[Ni(3,3'-dpdc)(dpp)]n1),[Ni(2,2'-dpdc)(phen)(H2O)2]n2)(3,3'-H2dpdc=3,3'-联苯二甲酸,2,2'-H2dpdc=2,2'-联苯二甲酸、phen=菲咯啉,dpp=1,3-二(4-吡啶基)丙烷),通过X射线单晶衍射的方法测定了其晶体结构。配合物1为二维网格型结构,中心金属离子为扭曲的[NiO4N2]八面体构型,3,3'-dpdc配体的2个羧基采取双齿螯合的配位模式与Ni(Ⅱ)离子配位形成Ni-(3,3'-dpdc)一维链结构,dpp配体采取单氮原子桥连的配位模式连接2个Ni(Ⅱ)离子形成Ni-dpp一维链,两种链相互贯穿形成二维网格型结构,二维网格结构之间通过氢键C15D-H15…O2、C21-H21A…O1形成三维超分子结构。配合物2为一维之字链结构,中心金属离子为扭曲的[NiO4N2]八面体构型,2,2'-dpdc的2个羧基均采取单齿桥连配位模式连接2个Ni(Ⅱ)离子形成一维之字型链结构,一维链之间通过O-H…O和C-H…π弱作用力连接形成三维超分子结构。探究了2种配合物对有机染料罗丹明B的光催化降解性能,结果表明配合物可以高效地降解罗丹明B。
关键词: 过渡金属配合物  3,3'-联苯二甲酸  2,2'-联苯二甲酸  罗丹明B  晶体结构  光催化
基金项目: 国家自然科学基金(No.21471104)和首都师范大学实验室开放基金(No.LIP16009G88)资助项目
Abstract: Two complexes[Ni(3,3'-dpdc)(dpp)]n (1) and[Ni(2,2'-dpdc)(phen)(H2O)2]n (2) were obtained under different reaction conditions (2,2'-H2dpdc=2,2'-biphenyldicarboxylic acid, 3,3'-H2dpdc=3,3'-biphenyldicarboxylic acid, phen=1,10-phenanthroline, dpp=1,3-bis(4-pyridyl)propane), and their structures were characterized by X-ray single crystal diffraction. Complex 1 belongs to monoclinic system, space group P21/c. It has two-dimensional grid structure and the coordination environment of Ni(Ⅱ) ion is[NiO2N4]. The two carboxyl groups of the 3,3'-dpdc ligand coordinate to the Ni(Ⅱ) ion by a bidentate chelate coordination mode to form a Ni-(3,3'-dpdc) one-dimensional chain structure, and the dpp ligand adopts a single nitrogen atom bridged coordination mode to connect two Ni(Ⅱ)) ions to form a Ni-dpp one-dimensional chain. The two chains penetrate each other to form a two-dimensional grid structure. The two-dimensional grid structure is stacked into a three-dimensional structure by C15D-H15…O2, C21-H21A…O1 hydrogen bonding. Complex 2 belongs to orthorhombic crystal system, space group P212121. The complex shows a one-dimensional zigzag structure. The coordination envrionment of Ni(Ⅱ) ion is[NiO4N2]. The two carboxyl groups of 2,2'-dpdc adopt a single-tooth bridged coordination mode. The adjacent Ni(Ⅱ) ions are linked by 2,2'-dpdc ligand to form the Ni-2,2'-dpdc zigzag chain structure, and the chains are connected to form a three-dimensional supramolecular structure by O-H…O and C-H…π. The photocatalytic degradation of the organic dye rhodamine B by two complexes was investigated. The results show that complexes can degrade rhodamine B efficiently.
Keywords: transition metal complex  2,2'-biphenyldicarboxylic acid  3,3'-biphenyldicarboxylic acid  rhodamine B  crystal structure  photocatalysis
投稿时间:2018-12-05 修订日期:2019-05-05
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李姗姗,张美娜,李铮,李夏.联苯二甲酸构筑的镍配合物的合成、晶体结构及对罗丹明B的光催化性能[J].无机化学学报,2019,35(7):1148-1154.
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