Synthesis,Structure and Magnetism of Two Cu(Ⅱ) 4,5-Dichlorophthalate Complexes  

作　　者：崔红旺 夏燕飞 项炘欣 秦绍恒 杨恩翠 

机构地区：[1]College of Chemistry, Key Laboratory of Inorganic-organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University

出　　处：《Chinese Journal of Structural Chemistry》2015年第12期1862-1868,共7页结构化学（英文）

基　　金：Supported by NNSFC(No.21171129 and 21173157);the Program for Innovative Research Team in University of Tianjin(TD12-5038);the National Training Programs of Innovation and Entrepreneurship for Undergraduates(201410065025)

摘　　要：Two 4,5-dichlorophthalate-based metal complexes, {[Cu（bipy）（dcpa）].H2O}n, （1） and {[Cu2Coipy）2（Hdcpa）3]·H2O·C2H5OH.Hdcpa} （2, H2dcpa = 4,5-dichlorophthalic acid and bipy = 2,2＇-bipyridine）, were synthesized and characterized structurally and magnetically. Complex 1 is of orthorhombic system, space group Fdd2 with a = 20.5821（8）, b = 20.9013（12）, c = 17.0270（7） A, V= 7324.9（6） A3, Dc = 1.707 g/cm3, Mr = 470.74, Z = 16, F（000） = 3792, p = 1.519 mm^-1, the final R = 0.0223 and wR = 0.0549 for 9239 observed reflections with I〉 2σ（I）. Complex 2 crystallizes in triclinic, space group P1 with a = 14.1439（12）, b = 14.2981（12）, c = 15.1054（14） A, a = 72.121（2）, β = 77.703（2）,γ = 81.829（2）°, V= 2830.9（4） A3, Dc = 1.689 g/cm3, M,. = 1439.55, Z = 2, F（000） = 1452,μ = 1.207 mm^-1, the final R = 0.0536 and wR = 0.0981 for 16422 observed reflections with 1 〉 2σ（I）. Complex 1 exhibits a diamond-like framework with centrosymmetric binuclear subunits extended by pairs of doubly deprotonated dcpa2- linkers. By contrast, 2 is an asymmetric binuclear entity bridged by carboxylate group of mono deprotonated Hdcpa- ligands. Weak anti- and ferromagnetic interactions are respectively mediated in the carboxylate aggregated binuclear subunits of 1 and 2.Two 4,5-dichlorophthalate-based metal complexes, {[Cu（bipy）（dcpa）].H2O}n, （1） and {[Cu2Coipy）2（Hdcpa）3]·H2O·C2H5OH.Hdcpa} （2, H2dcpa = 4,5-dichlorophthalic acid and bipy = 2,2＇-bipyridine）, were synthesized and characterized structurally and magnetically. Complex 1 is of orthorhombic system, space group Fdd2 with a = 20.5821（8）, b = 20.9013（12）, c = 17.0270（7） A, V= 7324.9（6） A3, Dc = 1.707 g/cm3, Mr = 470.74, Z = 16, F（000） = 3792, p = 1.519 mm^-1, the final R = 0.0223 and wR = 0.0549 for 9239 observed reflections with I〉 2σ（I）. Complex 2 crystallizes in triclinic, space group P1 with a = 14.1439（12）, b = 14.2981（12）, c = 15.1054（14） A, a = 72.121（2）, β = 77.703（2）,γ = 81.829（2）°, V= 2830.9（4） A3, Dc = 1.689 g/cm3, M,. = 1439.55, Z = 2, F（000） = 1452,μ = 1.207 mm^-1, the final R = 0.0536 and wR = 0.0981 for 16422 observed reflections with 1 〉 2σ（I）. Complex 1 exhibits a diamond-like framework with centrosymmetric binuclear subunits extended by pairs of doubly deprotonated dcpa2- linkers. By contrast, 2 is an asymmetric binuclear entity bridged by carboxylate group of mono deprotonated Hdcpa- ligands. Weak anti- and ferromagnetic interactions are respectively mediated in the carboxylate aggregated binuclear subunits of 1 and 2.

关 键 词：4 5-dichlorophthalate Cu（II） complex crystal structure MAGNETISM 

分 类 号：O641.4[理学—物理化学]