engleski

Thermosalient ("jumping") crystals

Thermosalient materials when heated or cooled are characterized by a fast and energetic phase transition in which crystals experience macroscopic change in dimensions and jump to distances much larger than their own dimension. Since the first systematic study [1], there has been a rising intrest for these interesting, and potentially useful, acutating materials. As a one example, N-2-propylidene-4-hydroxybenzohydrazide shows irreversible thermosalient phase transition from Form I to Form II and reversible thermosalient phase transition from Form II to Form III. We combine experiments and first- principles electronic structure calculations to elucidate this interesting and technologically useful phenomenon[2]. [1] Skoko et al., J. Am. Chem. Soc. 132, 14191 (2010) [2] Lončarić et al., Cryst. Growth Des. 17(8), 4445-4453 (2017)

thermosalient materials ; density functional theory

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