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- Title
Three Silver(I) Coordination Polymers Constructed from Flexible Bis(benzimidazole) and Carboxylates Ligands.
- Authors
Wang, Xiao Xiao; Liu, Yong Guang; Van Hecke, Kristof; Goltsev, Andrey; Cui, Guang Hua
- Abstract
Under hydrothermal conditions, three new AgI coordination polymers, [Ag(L1)(Hmip)] n ( 1), [Ag(L2)0.5(ndc)0.5] n ( 2), and {[Ag(L3)0.5(Htbi)] ·0.25H2O} n ( 3) [H2mip = 5-methylisophthalic acid, L1 = 1,4-bis(2-methylbenzimidazol-1-ylmethyl)benzene, H2ndc = 2,6-naphthalenedicarboxylic acid, L2 = 1,3-bis(2-methylbenzimidazol-1-ylmethyl)benzene, H2tbi = 5- tert-butyl isophthalic acid, L3 = 1,4-bis(5,6-dimethylbenzimidazole)butane] were synthesized by employing flexible bis(benzimidazole) and dicarboxylic acid ligands. Polymer 1 displays a 2D 4-connected 4L2 underlying net topology with the point symbol of (65.8) in standard representation. Compound 2 possesses a 2D uninodal 4-connected Shubnikov tetragonal plane net (sql) based on a dinuclear AgI clusters with the point symbol (44.62), which is further extended into a 3D supramolecular framework by π-π interactions. Compound 3 possesses dinuclear molecular complex groups, which form chains by weak Ag-O (2.6 Å) coordination bonds, and further assembled into a 2D supramolecular layer by hydrogen bonds and π-π stacking interactions. These complexes exhibit intense fluorescent emissions in solid state. UV/Vis diffuse reflection spectra and the excellent catalytic activity for the degradation of the congo red azo dye in a Fenton-like process are discussed.
- Subjects
SILVER; COORDINATION polymers; LIGAND exchange reactions; BENZENE; CHEMICAL reactions
- Publication
Zeitschrift für Anorganische und Allgemeine Chemie, 2015, Vol 641, Issue 5, p903
- ISSN
0044-2313
- Publication type
Article
- DOI
10.1002/zaac.201400597