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以3,3′,5,5′-(1,3-苯基)-联苯四羧酸(H4btb)与1,10-菲咯啉(phen)为配体,分别与硝酸镉和硝酸锌在水热条件下反应合成2个一维[Cd(H2btb)(phen)]n(1)和二维{[Zn2(btb)(phen)]·1.5H2O}n(2)配位聚合物,并对其进行了元素分析、红外光谱、热重分析和X-射线单晶衍射测定。配合物1属于单斜晶系,空间群为C2/c,晶胞参数:a=2.82845(13)nm,b=1.08554(5)nm,c=1.81768(8)nm,β=96.4850(10)°,V=5.5453(4)nm3,Z=8,Dc=1.670Mg·m-3,F(000)=2800,R1=0.0339,wR2=0.0718[I>2σ(I)],配体H4btb的2个羧基分别采取μ1-η1∶η1、μ2-η2∶η1配位模式连接镉原子形成一维带状结构。化合物2也属于单斜晶系,空间群为P21/c,晶胞参数:a=1.7471(3)nm,b=1.2511(2)nm,c=2.1870(3)nm,β=120.911(11)°,V=4.1014(11)nm3,Z=4,Dc=1.491Mg·m-3,F(000)=1876,R1=0.0673,wR2=0.1749[I>2σ(I)],全部去质子的H4btb配体的4个羧基分别采取μ1-η1∶η0、μ1-η1∶η1、μ2-η1∶η1配位模式连接锌原子形成一维链,链间通过μ2-η1∶η1桥连羧基扩展为(3,5)-连接的二维(42·67·8)(42·6)网状结构。同时研究了2个配合物的荧光性质。
Using 3,3 ’, 5,5’ - (1,3-phenyl) -biphenyltetracarboxylic acid (H4btb) and 1,10-phenanthroline (phen) as ligands, cadmium nitrate and zinc nitrate (1) and two-dimensional {[Zn2 (btb) (phen)] · 1.5H2O} n (2) complexes were synthesized by hydrothermal reaction, And its elemental analysis, infrared spectroscopy, thermogravimetric analysis and X-ray single crystal diffraction determination. The complex 1 belongs to the monoclinic system with the space group C2 / c. The unit cell parameters are a = 2.82845 (13) nm, b = 1.08554 (5) nm, c = 1.81768 (8) nm and β = 96.4850 (I), V = 5.5453 (4) nm3, Z = 8, Dc = 1.670 Mg · m -3, F (000) = 2800, R1 = 0.0339, wR2 = 0.0718 [I> 2σ The two carboxyl groups take the μ1-η1: η1, μ2-η2: η1 coordination mode to connect the cadmium atoms to form a one-dimensional band-like structure. Compound 2 also belongs to the monoclinic system with a space group of P21 / c with unit cell parameters of a = 1.7471 (3) nm, b = 1.2511 (2) nm, c = (V) = 4.1014 (11) nm3, Z = 4, Dc = 1.491 Mg · m -3, F (000) = 1876, R1 = 0.0673, wR2 = 0.1749 [I> 2σ (I)], all deprotonated The four carboxyl groups of H4btb ligands take the μ1-η1: η0, μ1-η1: η1, μ2-η1: η1 coordination modes to connect the zinc atoms to form a one-dimensional chain. The chain extension through μ2-η1: (3,5) - connected two-dimensional (42.67.8) (42.6) network structure. The fluorescence properties of two complexes were also studied.