A novel two-dimensional (4,4) network based on dinuclear cadmium secondary building units: poly[(mu(5)-benzene-1,4-diacetato)[mu(2)-1,4-bis(1,2,4-triazol-1-yl)buta ne]cadmium(II)]

作者：Wang Jun^*; Xu Xiao Juan; Tao Jian Qing

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2011, 67: M137-M139.

DOI：10.1107/S0108270111011413

In the title mixed-ligand metal-organic polymeric compound, [Cd(C10H8O4)(C8H12N6)] (n) or [Cd(PBEA)(BTB)] (n) [H(2)PBEA is benzene-1,4-diacetic acid and BTB is 1,4-bis(1,2,4-triazol-1-yl)butane], the asymmetric unit contains one CdII ion, one BTB molecule and one PBEA2- anion. The CdII ion is in a slightly distorted pentagonal-bipyramidal geometry, coordinated by five carboxylate O atoms from three distinct PBEA2- anions and by two BTB N atoms. There are two coordination patterns for the carboxylate groups of the PBEA2- ligand, one being a mu(1)-eta 1:eta 1 chelating mode and the other a mu(2)-eta 2:eta 1 bridging mode, while the BTB molecule shows a trans-trans-trans conformation. The crystal structure is constructed from the secondary building unit (SBU) [Cd-2(CO2)(4)N2O2], in which the two metal centres are held together by two PBEA2- linkers. The SBU is connected by BTB and PBEA2- bridges to form a two-dimensional grid-like (4,4) layer with meshes of dimensions 14.69 x 11.28 A.

• 出版日期2011-5
• 单位盐城师范学院