Control of polymorphism in coronene by the application of magnetic fields

Jason Potticary, Lui R. Terry, Christopher Bell, Andrew M. Collins, Claudio Fontanesi, Gabriele Kociok-Kohn, Simon Crampin, Enrico Da Como, Simon R. Hall

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

Coronene, a polyaromatic hydrocarbon, has been crystallized for the first time in a different polymorph using a crystal growth method that utilizes magnetic fields to access a unit cell configuration that was hitherto unknown. Crystals grown in magnetic field of 1 T are larger,have a different appearance to those grown in zero field and retain their structure in ambient conditions. We identify the new form, beta-coronene, as the most stable at low temperatures. As a result of the new supramolecular configuration we report significantly altered electronic, optical and mechanical properties.
Original languageEnglish
JournalarXiv
Publication statusPublished - 14 Sep 2015

Bibliographical note

32 pages, 17 figures

Keywords

  • Condensed Matter - Materials Science

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