The structure of methanol at 5.09 GPa: the fortuitous formation of a new high-pressure phase

J. Collen Aldum, Isabelle Jones, Paul R. McGonigal, Dino Spagnoli, Nicholas D. Stapleton, Gemma F. Turner, Stephen A. Moggach

Research output: Contribution to journalArticlepeer-review

Abstract

The crystal structure of a new polymorph of methanol (the epsilon polymorph) has been determined at 5.09 GPa by single crystal X-ray diffraction. The polymorph crystallises in the monoclinic space group, P2(1)/c, with twelve molecules in the unit cell, and exhibits a 4-membered hydrogen bonded ring structure, never previously observed in any crystal structure of methanol. The epsilon phase was also serendipitously seeded by the presence of another crystallite, giving rise to suitable crystallisation conditions 2 GPa lower than previously reported.
Original languageEnglish
Pages (from-to)7103-7108
Number of pages6
JournalCrystEngComm
Volume24
Issue number40
DOIs
Publication statusPublished - 27 Sep 2022

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