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Triphenylethylene-based biimidazoles showing preferable detection of explosives and their rhenium complexes undergoing chiral and cis-trans transformations

Abstract

The first rhenium-containing biimidazoles are structurally reported with two triphenylethylene units following chiral and cis-trans transformations simultaneously. Crystal structures show that the biimidazole ligand shows the (M)-trans-(P) configuration, whereas the (M)-cis-(M) mode has been observed in the rhenium complex, showing the cis-trans configurations between biimidazoles and the relative chiral isomers among adjacent triphenylvinylimidazole units. Furthermore, aiming to verify the association rule between spectral behaviours and orientational changes, fluorescence titration experiments have been investigated for full comparisons where the detecting performance for explosives in aqueous phase depends on the alternation of molecular structure, including the introduction of two alkyl chains and fac-[Re(CO)3Cl]. In addition, computational studies on molecular conformations with the different torsion angle for related compounds have been carried out.

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Publication details

The article was received on 06 Nov 2018, accepted on 12 Feb 2019 and first published on 13 Feb 2019


Article type: Paper
DOI: 10.1039/C8TC05583A
Citation: J. Mater. Chem. C, 2019, Accepted Manuscript

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    Triphenylethylene-based biimidazoles showing preferable detection of explosives and their rhenium complexes undergoing chiral and cis-trans transformations

    T. Tao, Y. Gan, Y. Zhao, J. Yu, Q. Huang, Z. Yang, M. Chen and W. Huang, J. Mater. Chem. C, 2019, Accepted Manuscript , DOI: 10.1039/C8TC05583A

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