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Issue 48, 2019
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Enantiomerism, diastereomerism and thermochromism in two Cu7I4 cluster-based coordination polymers

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Abstract

Solvothermal reaction between CuI and 5-(3-pyridyl)tetrazole (HPTA) in CH3CN and NH3·H2O/n-BuOH, afforded two kinds of Cu7I4 cluster-based coordination polymers 1 and 2, respectively. 1 is a racemic conglomerate of enantiomers crystallizing in the P6322 space group and 2 is a mesomer crystallizing in the P[3 with combining macron]c1 group. Both 1 and 2 show dual-channel emissions in which low-energy emission originates from a cluster-centered (CC) excited state while high-energy emission is attributed to an iodide-to-ligand charge transfer (XLCT)/metal-to-ligand charge transfer (MLCT) excited state. Of particular interest, 2 exhibits thermochromic luminescence originating from the combined effects of non-radiative transition and thermal deactivation of the XLCT excited state.

Graphical abstract: Enantiomerism, diastereomerism and thermochromism in two Cu7I4 cluster-based coordination polymers

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Publication details

The article was received on 03 Nov 2019, accepted on 22 Nov 2019 and first published on 25 Nov 2019


Article type: Communication
DOI: 10.1039/C9TC05996B
J. Mater. Chem. C, 2019,7, 15136-15140

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    Enantiomerism, diastereomerism and thermochromism in two Cu7I4 cluster-based coordination polymers

    W. Liao, X. Li, Q. Zeng, Y. Zhong, Y. Yin and J. He, J. Mater. Chem. C, 2019, 7, 15136
    DOI: 10.1039/C9TC05996B

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