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Title: Zinc Coordination Polymers with 2,6-Bis(imidazole-1-yl)pyridine and Benzenecarboxylate: Pseudo-Supramolecular Isomers with and without Interpenetration and Unprecedented Trinodal Topology
Authors: Lee, Jhen-Yi;Chen, Chih-Yuan;Lee, Hon Man;Elisa Passaglia;Francesco Vizza;Werner Oberhauser
Contributors: 化學系
Date: 2011-03
Issue Date: 2014-08-14T04:30:29Z
Publisher: American Chemical Society
Abstract: The ligand combination of semirigid 2,6-bis(imidazole-1-yl)pyridine (2,6-bip) and rigid benzenecarboxylate allow the isolation of three new zinc coordination polymers. Hydrothermal synthesis between Zn(NO3)2 3 6H2O, 2,6- bip, and terephthalic acid under basic condition affords [Zn(1,4-bdc)(2,6-bip) 3 2 H2O]n (1) (1,4-bdc =1,4-benzenedicarboxylate), which shows an undulating 2D (4,4)-network with 2-fold interpenetration. Contrastingly, solvothermal synthesis with identical starting materials in DMF, yields [Zn(1,4-bdc)(2,6-bip) 3DMF]n (2), which exhibits noninterpenetrating 2D (4,4)-network. Thus 1 and 2 are pseudosupramolecular isomeric pair, illustrating the strong effect of guest solvents in controlling the entanglement. A similar hydrothermal reaction to 1 but using 1,3,5- benzenetricarboxylic acid instead yields [Zn2(μ OH)(1,3,5-btc)(2,6-bip) 3H2O]n (3) (btc = benzenetricarboxylate), which exhibits a (3,4,6)-connected 3D framework with an unprecedented {5.6.7}2{}2{} topology. Compound 1 and 2 show reversible solvent incorporation properties.
Relation: Cryst. Growth Des., 11(4): 1230-1237
Appears in Collections:[化學系] 期刊論文

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