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6,6-(Perfluoropropane-2,2-diyl)bis(2,3-dihydrophthalazine-1,4-dione)-based coordination polymers and their sensing properties on Cr2O72-

Abstract

Through employing the hydrothermal in situ acylation of organic acids with N2H4, six L12--based coordination polymers as [M(L1)(H2O)]H2O (M2+ = Cd2+ 1, Zn2+ 2, Fe2+ 3, Mg2+ 4; H2L1 = 6,6-(perfluoropropane-2,2-diyl)bis(2,3-dihydrophthalazine-1,4-dione)), [Pb(L1)] 5, and [Er2(L1)2(ox)(H2O)2]∙5H2O (ox = oxalate) 6 were obtained. X-ray single-crystal diffraction analysis reveals that (i) the L12--based Cd2+, Zn2+, Fe2+ and Mg2+ coordination polymers are isostructural, and they possess a 2D single-layer network structure with a 44 topology; (ii) 5 possesses a 3-D network structure, which is constructed up from the dinuclear Pb2O812- clusters by the L12- molecules; (iii) 6 possesses a 2D double-layer network structure. Two 2D single layer networks (the same as that in 1-4) are supported by ox to form this 2D double-layer network. The 1-D channels (428.9 Å3 for total potential solvent accessible void volume) are observed in 6. 1, 2, 5 and 6 are found to emit the blue light, corresponding to the L12--centered electronic excitation. Based on the photoluminescence properties, their sensing ability on inorganic Cr2O72- anion was investigated. 5 exhibits the better sensing ability on Cr2O72-. The heavy-atom effect should play a key role.

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Publication details

The article was accepted on 08 Apr 2019 and first published on 09 Apr 2019


Article type: Paper
DOI: 10.1039/C9CE00507B
Citation: CrystEngComm, 2019, Accepted Manuscript

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    6,6-(Perfluoropropane-2,2-diyl)bis(2,3-dihydrophthalazine-1,4-dione)-based coordination polymers and their sensing properties on Cr2O72-

    W. ke-ke, J. Yu and J. Xu, CrystEngComm, 2019, Accepted Manuscript , DOI: 10.1039/C9CE00507B

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