论文部分内容阅读
以Cd(CH3COO)2、5-羟基间苯二甲酸(H3L)和新型多齿含氮配体2,4,6-三甲基-1,3-(二亚甲基苯)二(1,2,4-三氮唑)(tbb)为原料,通过水热方法合成了标题化合物。采用元素分析、红外光谱和X-单晶衍射法表征了该配合物的结构。结果表明:该化合物属于单斜晶系,空间群P21/c,晶胞参数a=1.033 74(5)nm,b=2.936 73(16)nm,c=0.843 23(5)nm,β=104.206(5)°,V=2.481 6(2)nm3,Z=4,F(000)=1 280,D c=1.683 g/cm3,R1=0.040 5,wR2=0.043 0[I>2σ(I)]。配合物中Cd(Ⅱ)离子被HL2-阴离子和tbb中性配体连接成一个二维的网状结构,相邻的网进一步通过氢键作用形成一个双层结构,最终这些双层通过π…π的相互作用形成三维超分子结构。此外,还研究了该化合物在室温下的固体荧光性质。
In this paper, Cd (CH3COO) 2, 5-hydroxyisophthalic acid (H3L) and novel multidentate nitrogenous ligand 2,4,6-trimethyl- 2,4-triazole) (tbb) as the starting material, the title compound was synthesized by hydrothermal method. The structure of the complex was characterized by elemental analysis, infrared spectroscopy and X-ray single crystal diffraction. The results show that the compound belongs to the monoclinic space group P21 / c with the unit cell parameters of a = 1.033 74 (5) nm, b = 2.936 73 (16) nm, c = 0.843 23 (5) °, V = 2.481 6 (2) nm3, Z = 4, F (000) = 1 280, D c = 1.683 g / cm3, R1 = 0.0405, wR2 = 0.043 0 [I> 2σ ]. Cd (Ⅱ) ions in the complex are linked by a HL2- anion and a tbb neutral ligand into a two-dimensional network structure, and the adjacent networks further form a double-layer structure by hydrogen bonding, and finally these double layers pass π ... π interactions form a three-dimensional supramolecular structure. In addition, the solid fluorescent properties of the compound at room temperature were also studied.