期刊
NATURE COMMUNICATIONS
卷 7, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms11555
关键词
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资金
- Engineering and Physical Sciences Research Council (EPSRC), UK [EP/G036780/1]
- Bristol Centre for Functional Nanomaterials
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
- USAF European Office of Aerospace Research and Development [FA8655-12-1-2078]
- [GW4]
- Engineering and Physical Sciences Research Council [EP/K03927X/1] Funding Source: researchfish
- EPSRC [EP/K03927X/1] Funding Source: UKRI
The continued development of novel drugs, proteins, and advanced materials strongly rely on our ability to self-assemble molecules in solids with the most suitable structure ( polymorph) in order to exhibit desired functionalities. The search for new polymorphs remains a scientific challenge, that is at the core of crystal engineering and there has been a lack of effective solutions to this problem. Here we show that by crystallizing the polyaromatic hydrocarbon coronene in the presence of a magnetic field, a polymorph is formed in a beta-herringbone structure instead of the ubiquitous gamma-herringbone structure, with a decrease of 35 degrees in the herringbone nearest neighbour angle. The beta-herringbone polymorph is stable, preserves its structure under ambient conditions and as a result of the altered molecular packing of the crystals, exhibits significant changes to the optical and mechanical properties of the crystal.
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