High-pressure polymorphism in pyridine

0542724 - FZÚ 2022 RIV GB eng J - Journal Article
Giordano, N. - Beavers, C.M. - Campbell, B.J. - Eigner, Václav - Gregoryanz, E. - Marshall, W.G. - Pena-Alvarez, M. - Teat, S. J. - Vennari, C.E. - Parsons, S.
High-pressure polymorphism in pyridine.
IUCrJ. Roč. 7, Jan (2020), s. 58-70. ISSN 2052-2525. E-ISSN 2052-2525
R&D Projects: GA MŠMT EF16_027/0008215
Grant - others:MOBILITY FZU(XE) CZ.02.2.69/0.0/0.0/16_027/0008215
Institutional support: RVO:68378271
Keywords : polymorphism * pressure * in situ crystallization * phase transitions
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 4.769, year: 2020
Method of publishing: Open access

Single crystals of the high-pressure phases II and III of pyridine have been obtained by in situ crystallization at 1.09 and 1.69 GPa, revealing the crystal structure of phase III for the first time using X-ray diffraction. Phases II and III have been observed previously by Raman spectroscopy, but have been mis-identified or inconsistently named. Raman spectra collected on the same samples as used in the X-ray experiments establish the vibrational characteristics of both phases unambiguously.
Permanent Link: http://hdl.handle.net/11104/0320089