新型锰(Ⅱ)配位聚合物的合成、结构及性能

Synthesis, Crystal Structure and Properties of A Novel Mn(Ⅱ)Coordination Polymer

以四氟对苯二甲腈为原料,与1,2,4-三氮唑反应,制得新化合物2-氟-3,5,6-三(1,2,4-三氮唑)-1,4-苯二甲腈,其结构经1H NMR,13C NMR,19F NMR和IR表征。以2-氟-3,5,6-三(1H-1,2,4-三氮唑)-1,4-对苯二甲腈与Mn(OAC)2·4H2O为原料,经微波辅助水热法合成了一个新的锰配位聚合物{[Mn(L)2(H2O)2]·H2O}n(1)[HL=2-羟基-3,5,6-三(1H-1,2,4-三氮唑)-1,4-对苯二甲腈],其结构经IR,元素分析和X-射线单晶衍射表征。1(CCDC:1910922)属三斜晶系,P-1空间群,晶胞参数a=8.036(8)A,b=9.902(5)A,c=11.099(5)A,α=95.537(6)°,β=104.285(6)°,γ=97.928(6)°。采用室温固态荧光和TG测试了1的性能。结果表明:在365 nm激发态下,配合物1在464 nm处有强发射峰。1的初始分解温度为90~135℃。

Reaction of tetrafluoroterephthalonitrile with 1,2,4-triazole to give the new orgnaic ligand 2-fluoro-3,5,6-tri(1,2,4-triazol)-1,4-benzenedicarbonitrile. The structure of 2-fluoro-3,5,6-tri(1,2,4-triazol)-1,4-benzenedicarbonitrile was characterized by 1H NMR, 13C NMR, 19F NMR and IR. A novel Mn(Ⅱ)coordination polymer, {[Mn(L)2(H2O)2]·H2O}n(1),[HL=2-hydroxy-3,5,6-tri(1H-1,2,4-triazol-1-yl)terephthalonitrile was synthesized by microwave assisted hydrothermal reaction from novel rigid tris-triazole compound 2-fluoro-3,5,6-tri(1H-1,2,4-triazol-1-yl)-1,4-benzenedicarbonitrile with Mn(OAC)2·4 H2O. The structure was characterized by IR, elemental analysis and X-ray single crystal diffraction. The results showed that complex 1(CCDC: 1910922) belongs to triclinic system, space group P-1 with a=8.036(8)A, b=9.9017(5)A, c=11.099(5)A, α=95.537(6)°, β=104.285(6)°, γ=97.928(6)°. Upon an excitation band at 365 nm, intense emissions were observed at 464 nm for 1 in the solid state at room temperature. In addition, the initial decomposition temperature of 1 was 90~135 ℃.