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Issue 44, 2018
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The conformational behavior of multivalent tris(imidazolium)cyclophanes in the hybrids with metal (pseudo)halides or polyoxometalates

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Abstract

Three 3D imidazole or benzimidazole-bearing cages (L1–L3) were synthesized as trivalent cationic templates to react with metal (pseudo)halides or molybdate to obtain seven different organic–inorganic supramolecular hybrids: {[CuBr3]3·(L1)2·2(CH3CN)} (1a), {L1·[CuI3] (H2O)} (1b), {L2·[PbI5]} (2a), {(L2)2·[Cu2I5]2} (2b), {L3·Ag(SCN)4·(CH3CN)·2H2O} (3a), {L3·[HgI4]·I} (3b), and {L2·[HMo5O17](H2O)3.25} (4). Their structures were determined by single-crystal X-ray diffraction analyses, which showed that the cages exhibit breathing behavior of expansion and contraction. In addition, the fluorescence properties of 1b–3b in solid state were studied, which indicated that they could be employed as fluorescence sensors for detecting Fe3+ ions with high sensitivity and recyclability.

Graphical abstract: The conformational behavior of multivalent tris(imidazolium)cyclophanes in the hybrids with metal (pseudo)halides or polyoxometalates

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Supplementary files

Article information


Submitted
15 Aug 2018
Accepted
11 Oct 2018
First published
12 Oct 2018

CrystEngComm, 2018,20, 7184-7194
Article type
Paper

The conformational behavior of multivalent tris(imidazolium)cyclophanes in the hybrids with metal (pseudo)halides or polyoxometalates

F. Wang, Z. Li, D. Wei, Y. Niu, H. Hou and B. Wu, CrystEngComm, 2018, 20, 7184
DOI: 10.1039/C8CE01372A

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