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Complex transitions between dihydrate and anhydrate forms of ectoine – unexpected behavior of a highly hygroscopic compatible solute in the solid state

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Abstract

The crystalline dihydrate of the compatible solute ectoine undergoes a loss of water at ambient conditions and transforms into a highly hygroscopic anhydrate form. This unexpected transition is studied combining single-crystal and powder X-ray, single crystal neutron diffraction measurements and quantum mechanical calculations. Overall, our study provides a rationale for the important uptake and loss of water by ectoine in the solid state.

Graphical abstract: Complex transitions between dihydrate and anhydrate forms of ectoine – unexpected behavior of a highly hygroscopic compatible solute in the solid state

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Publication details

The article was received on 10 Oct 2019, accepted on 21 Nov 2019 and first published on 25 Nov 2019


Article type: Communication
DOI: 10.1039/C9CE01599J
CrystEngComm, 2020, Advance Article

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    Complex transitions between dihydrate and anhydrate forms of ectoine – unexpected behavior of a highly hygroscopic compatible solute in the solid state

    W. M. Hützler, E. Mossou, R. Vollrath, M. Kohagen, I. El Ghrissi, M. Grininger, G. Zaccai, J. Smiatek and D. Oesterhelt, CrystEngComm, 2020, Advance Article , DOI: 10.1039/C9CE01599J

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