A fivefold interpenetrating diamondoid framework constructed by flexible dipyridyl and dicarboxylate ligands

作者：Wang Jun Feng; Guo Wen Jing; Deng Fan Zheng^*

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2013, 69: 1328-U1474.

DOI：10.1107/S0108270113027182

• crystal structure
• fivefold interpenetrating diamondoid framework
• 2
• 2-(1
• 4-phenylene)diacetic acid
• metal-organic coordination polymers
• 1
• 4-bis[2-(pyridin-4-yl)ethenyl]benzene

A novel three-dimensional Cd-II complex, poly[aqua{mu(2)-1,4-bis[2-(pyridin-4-yl)ethenyl]benzene-kappa N-2:N'}[mu(4)-2,2'-(1,4-phenylene)diacetato-kappa O-4,O':O '',O'"]cadmium(II)], [Cd(C-10-H8O4)(C20H16N2)(H2O)](n), has been prepared by hydrothermal assembly of Cd(NO3)(2)center dot 4H(2)O, 1,4-bis[2-(pyridin-4-yl)ethenyl]benzene (1,4-bpeb) and 2,2'-(1,4-phenylene)diacetic acid (1,4-H(2)pda). Each Cd-II centre is located on a twofold axis in a distorted pentagonal bipyramidal coordination environment formed by one O atom from a water molecule, which lies on the same twofold axis, four O atoms from two different 1,4-pda ligands and two N atoms from two different 1,4-bpeb ligands. The Cd-II centres are bridged by the 1,4-bpeb and 1,4-pda ligands, which lie across centres of inversion. The three-dimensional net can be regarded as a diamondoid network by treating the Cd-II atoms as nodes and the 1,4-bpeb and 1,4-pda ligands as linkers. The single net leaves voids that are filled by mutual interpenetration of four independent equivalent frameworks in a fivefold interpenetrating architecture.

• 出版日期2013-11
• 单位淮北师范大学