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以Co(NO_3)_2·6H_2O,1H-苯并三氮唑-1-乙酸和4,4’-联吡啶(4,4’-bipy)为原料,采用溶剂蒸发法合成了一种具有(4,4)-连接(4~4·6~2)拓扑结构的新型一维链状钴配合物{[Co(4,4’-bipy)3(OH)2]n(1)},其结构经FT-IR,元素分析,X-射线单晶衍射表征。1(CCDC:1 041 543)属单斜晶系,空间群C2/c,晶胞参数a=18.057(4),b=11.487(2),c=24.590(5),β=93.60(3)°,V=5 090.4(18)3,Z=4,Dc=0.733 g·cm-3,μ=0.358 mm-1,F(000)=1 144,R1=0.093 0,ωR2=0.192 2。1的中心离子Co(Ⅱ)与4个氮原子和2个氧原子配位,形成畸变的八面体几何构型。未参与桥联的4,4’-bipy形成分子间氢键(O-H┈N)和π…π堆积,进一步将一维链结构扩展为二维(4,4)-连接(4~4·6~2)拓扑的超分子网状结构。表面光电压光谱研究结果表明:1在300 nm~600 nm内有正光伏响应,具有一定的光转换能力。
(4) -bipy was synthesized by solvothermal method using Co (NO_3) _2 · 6H_2O, 1H-benzotriazole-1-acetic acid and 4,4’-bipy as starting materials. , 4) - a new one-dimensional chain cobalt complex {[[Co (4,4’-bipy) 3 (OH) 2] n (1)} with topological structure of 4-4-6 ~ The product was characterized by FT-IR, elemental analysis and X-ray single crystal diffraction. (CCDC: 1 041 543) belongs to the monoclinic system with space group C2 / c. The unit cell parameters a = 18.057 (4) , b = 11.487 2, c = 24.590 5, β = 93.60 (3) ° V = 5 090.4 (18) 3 Z = 4 Dc = 0.733 g · cm -3 μ = 0.358 mm -1 F (000) = 1 144 R1 = 0.093 0 ωR2 = 0.192 2.1 The central ion Co (Ⅱ) coordinates with four nitrogen atoms and two oxygen atoms to form a distorted octahedral geometry. 4,4’-bipy, which is not involved in bridging, forms an intermolecular hydrogen bond (OH┈N) and π ... π stacking, further expanding the one-dimensional chain structure into a two-dimensional (4,4) ~ 2) topology of the supramolecular network structure. The results of surface photovoltage spectroscopy show that: 1 There is a positive PV response within 300 nm ~ 600 nm, which has some light conversion ability.