A New Pillared-layer Framework with Co^Ⅱ 4-Triazole Magnetic Layer Exhibiting Strong Spin-frustration  

作　　者：DING Nan LIU Zhong-Yi CHEN Rin-Min BO Yi-Lin WANG Xiu-Guang ZHAO Xiao-Jun YANG En-Cui 丁楠;刘忠义;陈瑞敏;薄一琳;王修光;赵小军;杨恩翠(College of Chemistry,Tianjin Key Laboratory of Structure and Performance for Functional Molecules,MOE Key Laboratory of Inorganic-organic Hybrid Functional Material Chemistry,Tianjin Normal University,Tianjin 300387,China)

机构地区：[1]College of Chemistry,Tianjin Key Laboratory of Structure and Performance for Functional Molecules,MOE Key Laboratory of Inorganic-organic Hybrid Functional Material Chemistry,Tianjin Normal University,Tianjin 300387,China

出　　处：《Chinese Journal of Structural Chemistry》2020年第3期519-525,378,共8页结构化学（英文）

基　　金：Supported by NNSFC(21303121);the Program for Innovative Research Team at University of Tianjin(TD13-5074);Innovation Program of Tianjin University students(201810065338)。

摘　　要：One new coordination polymer, [Co4(H2 O)4(μ3-OH)2(atz)2(L)]n(1), was solvothermally prepared by the reaction of 3-amino-1,2,4-triazole(Hatz), 4,8-disulfonyl-2,6-naphthalenedicarboxylic acid(H4 L) and Co^(Ⅱ) salt. It crystallizes in monoclinic system, space group P21/c with a = 10.4454(7), b = 12.2214(8), c = 10.0818(7) ?, b = 102.284(7), V = 1257.56(15) ?~3, Dc = 2.325 g/cm^3, Mr = 880.24, Z = 2, F(000) = 880, μ = 2.859 mm^(-1), the final R = 0.0426 and wR = 0.0822 for 5526 observed reflections with I > 2σ(I). Structural analyses indicate that 1 exhibits a three-dimensional(3 D) pillared-layer framework with triazolate extended Co4^(Ⅱ) layers supported by rigid L^(4-) connectors. Magnetically, complex 1 displays strong spin-frustrated antiferromagnetism due to the triangular magnetic lattice and cooperative antiferromagnetic couplings mediated by quadruple heterobridges.

关 键 词：pillared-layer FRAMEWORK 1 2 4-triazole spin-frustration 

分 类 号：O641.4[理学—物理化学]