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arXiv · 1509.04120

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
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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.

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Jason Potticary, Lui R. Terry, Christopher Bell, Andrew M. Collins, Claudio Fontanesi, Gabriele Kociok-Kohn, Simon Crampin, Enrico Da Como, Simon R. Hall. 2015-09-15. Control of polymorphism in coronene by the application of magnetic fields. https://doi.org/10.1038/ncomms11555

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