Synthesis,Crystal Structure and Fluorescent Properties of a Cadmium(Ⅱ) Complex with 3-(Pyridin-4-yl)-5-(pyrazin-2-yl)-1H-1,2,4-triazole  

作　　者：王玉芳 孙小媛 耿俊磊 

机构地区：[1]College of Chemistry and Chemical Engineering,Luoyang Normal University [2]School of Chemical Engineering,Guizhou University of Engineering Science

出　　处：《Chinese Journal of Structural Chemistry》2016年第3期397-403,共7页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China(No.21271098);Science and Technology Research Key Project of the Education Department of Henan Province(No.14B150034)

摘　　要：Compound [Cd_（1.5）（ppt）Br_2（H_2O）]_（2n）（1）,where Hppt = 3-（pyridin-4-yl）-5-（pyrazin-2-yl）-1H-1,2,4-triazole,has been synthesized under hydrothermal conditions and characterized by elemental analysis,IR spectra,powder XRD,and X-ray diffraction.Compound 1 crystallizes in the triclinic system,space group P1 with a = 7.4402（6）,b = 8.0570（7）,c = 12.8674（11） A,α = 89.7300（10）,β = 89.8570（10）,γ = 68.3910（10）°,V = 717.13（10） A^3,Z = 1,Dc = 2.638 g/cm^3,μ = 7.824 mm^-1,F（000） = 534,the final R = 0.0324 and w R = 0.1084 for 2324 observed reflections with I 〉 2σ（I）.X-ray diffraction analyses revealed that complex 1 is a 2D layered coordination polymer constructed from the linkage of [Cd_3（μ-Br）_4] trinuclear units with ppt-spacers,and a 3D supramolecular architecture is further assembled in 1 via hydrogen-bonding contacts.Fluorescence measurements show that 1 has medium fluorescent emission at 450 nm.Compound [Cd_（1.5）（ppt）Br_2（H_2O）]_（2n）（1）,where Hppt = 3-（pyridin-4-yl）-5-（pyrazin-2-yl）-1H-1,2,4-triazole,has been synthesized under hydrothermal conditions and characterized by elemental analysis,IR spectra,powder XRD,and X-ray diffraction.Compound 1 crystallizes in the triclinic system,space group P1 with a = 7.4402（6）,b = 8.0570（7）,c = 12.8674（11） A,α = 89.7300（10）,β = 89.8570（10）,γ = 68.3910（10）°,V = 717.13（10） A^3,Z = 1,Dc = 2.638 g/cm^3,μ = 7.824 mm^-1,F（000） = 534,the final R = 0.0324 and w R = 0.1084 for 2324 observed reflections with I 〉 2σ（I）.X-ray diffraction analyses revealed that complex 1 is a 2D layered coordination polymer constructed from the linkage of [Cd_3（μ-Br）_4] trinuclear units with ppt-spacers,and a 3D supramolecular architecture is further assembled in 1 via hydrogen-bonding contacts.Fluorescence measurements show that 1 has medium fluorescent emission at 450 nm.

关 键 词：trinuclear unit crystal structure fluorescent 

分 类 号：O641.4[理学—物理化学]