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Capture of volatile iodine by newly prepared and characterized non-porous [CuI]n-based coordination polymers

Abstract

Four new non-porous CuI-coordination polymers [Cu2(µ3-I)2(µ-bpb)]n (1a), [Cu(µ2-I)(µ-bpb)]n (1b), [Cu4(µ2-I)4(µ-bpmb)4]n (2), and [CuI(µ-bdb)]n (3) (bpb= 1,4-bis(pyrazolyl)butane; bpmb= 1,4-bis[(pyrazolyl)methyl]benzene; bdb= 1,4-bis[(3,5-dimethylpyrazolyl)methyl]benzene) have been successfully prepared and their structures fully characterized by single-crystal X-ray diffraction, FT-IR spectroscopy, PXRD and elemental analysis. Crystallographic investigations reveal that 1a, 1b, and 2 exhibit two-dimensional (2D) structures; in 1a parallel [Cu2I2]n staircase motifs are cross-linked into two-dimensional sheets by bpb linkers with a fully extended conformation, while in the structures of 1b and 2 Cu2I2 rhomboid dimers are linked by bpb and pbmb ligands, respectively, into two-dimensional sheets with 44-sql net. Differently, compound 3 shows one-dimensional (1D) zig-zag chain structure with monomeric CuI units. All the four non-porous coordination polymers show the ability to capture volatile iodine in the gas phase. Solid-state photoluminescence properties of 1a, 1b, and 2 have also been investigated. Iodine adsorbed samples 1a-I2, 1b-I2, and 2-I2 show no fluorescence behavior.

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Publication details

The article was received on 27 Jun 2017, accepted on 11 Sep 2017 and first published on 11 Sep 2017


Article type: Paper
DOI: 10.1039/C7CE01193H
Citation: CrystEngComm, 2017, Accepted Manuscript
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    Capture of volatile iodine by newly prepared and characterized non-porous [CuI]n-based coordination polymers

    A. Tarassoli, V. Nobakht, E. Baladi, L. CARLUCCI and D. M. Proserpio, CrystEngComm, 2017, Accepted Manuscript , DOI: 10.1039/C7CE01193H

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