Freezing on heating of liquid solutions

The Journal of Chemical Physics
M PlazanetHand-Peter Trommsdorff

Abstract

We report a reversible liquid-solid transition upon heating of a simple solution composed of a-cyclodextrine (alpha CD), water, and 4-methylpyridine. These solutions are homogeneous and transparent at ambient temperature and solidify when heated to temperatures between 45 degrees and 75 degrees. Quasielastic and elastic neutron scattering show that molecular motions are slowed down in the solid and that crystalline order is established. The solution "freezes on heating." This process is fully reversible, on cooling the solid melts. A rearrangement of hydrogen bonds is postulated to be responsible for the observed phenomenon.

References

Jun 1, 2001·Journal of Biological Physics·G Caldarelli, P De Los Rios

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Citations

May 14, 2010·Physical Chemistry Chemical Physics : PCCP·Marie PlazanetHand-Peter Trommsdorff
Oct 25, 2006·The Journal of Chemical Physics·M PlazanetH P Trommsdorff
Apr 7, 2007·The Journal of Chemical Physics·C FerrariG P Johari
May 2, 2009·The Journal of Chemical Physics·Jacek DudowiczKarl F Freed
Aug 20, 2005·The Journal of Chemical Physics·E TombariG P Johari
Apr 17, 2014·The Journal of Chemical Physics·Ahmad M AlmudallalIvan Saika-Voivod
Oct 10, 2018·Physical Chemistry Chemical Physics : PCCP·Reut ShapiraYoav Eichen
Dec 31, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Nurith Schupper, Nadav M Shnerb
Jul 28, 2011·Journal of Computational Chemistry·Milind M DeshmukhShridhar R Gadre
Jan 15, 2016·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Corrado RainoneLuca Leuzzi
Jun 13, 2009·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·M PlazanetH P Trommsdorff
Oct 15, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·R AngeliniS De Panfilis
Mar 13, 2009·The Journal of Physical Chemistry. B·E B Starikov, B Nordén

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