Open AccessСтруктурная эволюция молекулярного сегнетоэлектрика хлорида диизопропиламмония (DIPAC)
Author(s) -
Н.И. Ускова,
Е.В. Чарная,
Д.Ю. Подорожкин,
C.B. Барышников,
И.В. Егорова,
А.Ю. Милинский
Publication year - 2020
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2020.07.49472.016
Subject(s) - orthorhombic crystal system , monoclinic crystal system , ferroelectricity , crystallography , polar , materials science , nuclear magnetic resonance , chemistry , crystal structure , physics , dielectric , optoelectronics , astronomy
Changes in structure of a new molecular ferroelectric diisopropylammonium chloride (C6H16ClN, DIPAC) at room temperature were studied by high-resolution (CP-MAS) nuclear magnetic resonance (NMR) and X-ray analysis. NMR measurements were carried out for ^{13}С nuclei. Monoclinic ferroelectric and orthorhombic nonpolar phases as well as their coexistence were observed depending on time and thermal treatment. It was shown that the polar modification of DIPAC at room temperature transforms with time to the nonpolar orthorhombic structure. N. I. Uskova, E. V. Charnaya, L. Yu. Podorozhkin, S. V. Baryshnikov, I. V. Egorova, A. Yu. Milinskii