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Isostructural phase transition and tunable water rotation within a unique solid rotor system

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Abstract

Through the combined techniques of variable-temperature X-ray structure analysis, dielectric measurement, isotope substitution and molecular dynamics simulation, we investigate a new supramolecular gyroscope (t-BuNH3)(18-crown-6)[ZnBr3(H2O)]. It undergoes an unusual isostructural phase transition, which is different to the non-isostructural one of the chlorine substituted analogue we reported previously. In addition, their solid solutions can be obtained, with a tunable phase transition temperature and the related properties. The comparative analysis of these homologous supramolecular gyroscopes provides in-depth insight for understanding the mechanism of the rarely observed temperature-induced isostructural phase transition as well as modulating the dipole rotation in crystals.

Graphical abstract: Isostructural phase transition and tunable water rotation within a unique solid rotor system

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Publication details

The article was received on 29 Aug 2019, accepted on 26 Sep 2019 and first published on 27 Sep 2019


Article type: Paper
DOI: 10.1039/C9TC04765D
J. Mater. Chem. C, 2019, Advance Article

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    Isostructural phase transition and tunable water rotation within a unique solid rotor system

    W. Li, Y. Zeng, X. Shu, C. He, Z. Du, W. Zhang and X. Chen, J. Mater. Chem. C, 2019, Advance Article , DOI: 10.1039/C9TC04765D

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