Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Crystal structure, raman spectroscopy and dielectric properties of new semiorganic crystals based on 2-methylbenzimidazole. / Balashova, E. V.; Svinarev, F. B.; Zolotarev, A. A.; Levin, A. A.; Brunkov, P. N.; Davydov, V. Yu; Smirnov, A. N.; Redkov, A. V.; Pankova, G. A.; Krichevtsov, B. B.
в: Crystals, Том 9, № 11, 573, 11.2019.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Crystal structure, raman spectroscopy and dielectric properties of new semiorganic crystals based on 2-methylbenzimidazole
AU - Balashova, E. V.
AU - Svinarev, F. B.
AU - Zolotarev, A. A.
AU - Levin, A. A.
AU - Brunkov, P. N.
AU - Davydov, V. Yu
AU - Smirnov, A. N.
AU - Redkov, A. V.
AU - Pankova, G. A.
AU - Krichevtsov, B. B.
PY - 2019/11
Y1 - 2019/11
N2 - New single crystals, based on 2-methylbenzimidazole (MBI), of MBI-phosphite (C16 H24 N4 O7 P2), MBI-phosphate-1 (C16 H24 N4 O9 P2), and MBI-phosphate-2 (C8 H16 N2 O9 P2) were obtained by slow evaporation method from a mixture of alcohol solution of MBI crystals and water solution of phosphorous or phosphoric acids. Crystal structures and chemical compositions were determined by single crystal X-ray diffraction (XRD) analysis and confirmed by XRD of powders and elemental analysis. Raman spectroscopy of new crystals evidences the presence in crystals of MBI-, H3 PO3-, or H3 PO4-and water molecules. Dielectric properties of crystals reveal strong increase and low frequency dispersion of dielectric constant and losses at heating, indicating the appearance of proton conductivity. At low temperatures in MBI-phosphate-2, an increase of dielectric constant analogous to quantum paraelectric state is observed.
AB - New single crystals, based on 2-methylbenzimidazole (MBI), of MBI-phosphite (C16 H24 N4 O7 P2), MBI-phosphate-1 (C16 H24 N4 O9 P2), and MBI-phosphate-2 (C8 H16 N2 O9 P2) were obtained by slow evaporation method from a mixture of alcohol solution of MBI crystals and water solution of phosphorous or phosphoric acids. Crystal structures and chemical compositions were determined by single crystal X-ray diffraction (XRD) analysis and confirmed by XRD of powders and elemental analysis. Raman spectroscopy of new crystals evidences the presence in crystals of MBI-, H3 PO3-, or H3 PO4-and water molecules. Dielectric properties of crystals reveal strong increase and low frequency dispersion of dielectric constant and losses at heating, indicating the appearance of proton conductivity. At low temperatures in MBI-phosphate-2, an increase of dielectric constant analogous to quantum paraelectric state is observed.
KW - Crystal growth
KW - Crystal structure
KW - Dielectric properties
KW - Hydrogen bonds
KW - Proton conductivity
KW - Raman spectroscopy
KW - Semiorganic crystals
KW - XRD
UR - http://www.scopus.com/inward/record.url?scp=85074392795&partnerID=8YFLogxK
U2 - 10.3390/cryst9110573
DO - 10.3390/cryst9110573
M3 - Article
AN - SCOPUS:85074392795
VL - 9
JO - Liquid Crystals Today
JF - Liquid Crystals Today
SN - 1358-314X
IS - 11
M1 - 573
ER -
ID: 51465023