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A series of flexible bis(pyridyl)-bis(tetrazole)-modulated coordination polymers: Construction, electrochemical properties, dye adsorption and magnetic properties

Abstract

Four new coordination polymers (CPs), namely, [Co(3-bptzp)(HBTB)]•DMF (1), [Co(4-bptzp)(HBTB)]•EtOH (2), [Co3(4-bptzh)3/2(BTB)2(H2O)] (3), [Cu4(4-bptzh)2(HBTB)4]•MeCN (4), were prepared by solvothermal reactions of metal(II) salts with 4,4’,4’’-benzene-1,3,5-triyl-tribenzoic acid (H3BTB) in the presence of different bis(pyridyl)-bis(tetrazole) ligands [1,4-bis(5-(3-pyridyl)tetrazolyl) propane (3-bptzp), 1,4-bis(5-(4-pyridyl)tetrazolyl) propane (4-bptzp) and 1,4-bis(5-(4-pyridyl)tetrazolyl) hexane (4-bptzh)] and structurally characterized by single crystal X-ray diffraction, infrared spectroscopy (IR) and powder X-ray diffraction (PXRD). Complexes 1 and 2 exhibit similar structures, which demonstrate 1D ladder-like chains. Complexes 3 and 4 display different 3D topology frameworks. The diverse architectures of the title complexes show that the spacer length of bis(pyridyl)-bis(tetrazole) ligands and metal ions have significant impacts on the structures and the coordination modes of BTB ligands. Dye adsorption, electrochemical and magnetic properties of the title complexes have been investigated, and 3 performed the best among the test complexes in dye adsorption and electrochemical property. Complexes 1, 2 and 3 show weak antiferromagnetism behavior.

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Publication details

The article was received on 29 Jul 2019, accepted on 17 Sep 2019 and first published on 20 Sep 2019


Article type: Paper
DOI: 10.1039/C9CE01175G
CrystEngComm, 2019, Accepted Manuscript

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    A series of flexible bis(pyridyl)-bis(tetrazole)-modulated coordination polymers: Construction, electrochemical properties, dye adsorption and magnetic properties

    Y. Liu, X. Wang, J. Zhao, H. Lin, N. Xu, J. Zhang and B. yu, CrystEngComm, 2019, Accepted Manuscript , DOI: 10.1039/C9CE01175G

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