Entangled Zn(ii)/Cd(ii) coordination complexes based on a flexible bis(methylbenzimidazole) ligand and different dicarboxylates
作者： Lu Liu , Chao Huang , Zhengchuang Wang , Dongqing Wu , Hongwei Hou
DOI: 10.1039/C3CE40823J
关键词:
摘要: Eight entangled coordination complexes, formulated as [M(hbmb)0.5(o-phda)]n [M = Zn (1), Cd (2)], {[M(hbmb)(p-phda)]·H2O}n (3), (4)], [M(hbmb)0.5(oba)]n (5), (6)], {[M(hbmb)(sdba)]m}n Zn, m 2 (7); 1, (8)] (H2phda phenylenediacetic acid, H2oba 4,4′-oxybis(benzoic acid), H2sdba 4,4′-sulfonyldibenzoic have been prepared by hydrothermal reactions of the flexible ligand 1,1′-(1,6-hexane)bis-(2-methylbenzimidazole)) (hbmb) with metal ions in presence various dicarboxylate coligands. Isostructural complexes 1 and reveal 6-connected self-penetrating three-dimensional (3D) frameworks (44·610·8)-roa topologies. 3 4 display 4-fold interpenetrating 3D 66-dia 5 6 exhibit 2-fold (412·63)-pcu Both 7 8 are constructed through unusual 2D → parallel interpenetration corrugated (4,4) nets, which shows a 4-connected (44·62)2 topology presents 44·62 topology. A systematic structural comparison four pairs that can be tuned coligands changeable conformations hbmb ligand. In addition, chemical stability, thermal stability photoluminescent properties 1–8 also investigated.
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