title: Coordination polymers of macrocyclic oxamide with 1,3,5-benzenetricarboxylate: syntheses, crystal structures and magnetic properties.
abstract: Solvothermal reactions of mixed ligands H(3)BTC and macrocyclic oxamide complexes (ML, M = Cu, Ni) with M(ClO(4))(2)·6H(2)O (M = Co, Zn, Ni and Cd) afford six new complexes, including [M'(4)(BTC)(2)(ML)(2)(OH)(2)(H(2)O)(2)]·2H(2)O (M' = Co, M = Ni, for (1); M' = Zn, M = Ni, for (2); M' = Zn, M = Cu, for (3)), [Ni(3)(BTC)(2)(NiL)(2)(H(2)O)(6)]·2CH(3)OH·2H(2)O (4), [Cd(4)(BTC)(2)(HBTC)(NiL)(4)(H(2)O)]·3H(2)O (5) and [Cd(HBTC)(CuL)]·H(2)O (6) (ML, H(2)L = 2, 3-dioxo-5, 6, 14, 15-dibenzo-1,4,8,12-tetraazacyclo-pentadeca-7,13-dien; H(3)BTC = 1,3,5-benzenetricarboxylic acid). Complexes 1-3 consist of a 2D layer framework formed by the linkage of M(II)(M = Ni, Cu) and M'(4) (M' = Co, Zn) cluster via the oxamide and BTC(3-) bridges and display a (3,6)-connected network with a (4(3))(2)(4(6).6(6).8(3)) topology. The structure of 4 consists of pentanuclear [Ni(II)(5)] units and arranges in a 1D cluster chain. Complex 5 exhibits a 2D layered structure characterized by 3,4,3-connected (4.6(2))(3)(4.6(3).8(2))(4(2).6(3).8)(4(2).6) topology. Complex 6 possesses a 3D network with sra topology. The magnetic properties of complexes 1 and 4 were investigated.
authors.affiliation: Tianjin Key Laboratory of Structure and Performance for Functional Molecule, College of Chemistry, Tianjin Normal University, Tianjin, 300387, P. R. China. hxxysyq@mail.tjnu.edu.cn
authors.forename: Ya-Qiu
authors.initials: YQ
authors.lastname: Sun
authors.forename: Dong-Zhao
authors.initials: DZ
authors.lastname: Gao
authors.forename: Yan-Yan
authors.initials: YY
authors.lastname: Xu
authors.forename: Guo-Ying
authors.initials: GY
authors.lastname: Zhang
authors.forename: Lan-Lan
authors.initials: LL
authors.lastname: Fan
authors.forename: Cheng-Peng
authors.initials: CP
authors.lastname: Li
authors.forename: Tong-Liang
authors.initials: TL
authors.lastname: Hu
authors.forename: Dai-Zheng
authors.initials: DZ
authors.lastname: Liao
authors.forename: Chen-Xi
authors.initials: CX
authors.lastname: Zhang