Research output: Contribution to journal › Article › peer-review
Cocrystals of betulin with adipic acid: preparation and thermal behavior. / Myz, S. A.; Mikhailenko, M. A.; Mikhailovskaya, A. V. et al.
In: Journal of Thermal Analysis and Calorimetry, Vol. 147, No. 15, 08.2022, p. 8235-8242.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Cocrystals of betulin with adipic acid: preparation and thermal behavior
AU - Myz, S. A.
AU - Mikhailenko, M. A.
AU - Mikhailovskaya, A. V.
AU - Bulina, N. V.
AU - Gerasimov, K. B.
AU - Politov, A. A.
AU - Kuznetsova, S. A.
AU - Shakhtshneider, T. P.
N1 - Funding Information: The research was carried out within the State Assignments to ISSCM SB RAS (project No. FWUS-2021-0009) and ICCT SB RAS (Project No. 0287-2021-0017). The authors are grateful to E. Losev for recording the FTIR spectra. Publisher Copyright: © 2021, Akadémiai Kiadó, Budapest, Hungary.
PY - 2022/8
Y1 - 2022/8
N2 - The cocrystal of betulin (BE) with adipic acid (AA) was prepared using a liquid-assisted grinding method. The formation of BE-AA cocrystal was confirmed by powder X-ray diffraction, IR spectroscopy and thermal analysis methods. It was assumed that 1:1 BE-AA cocrystal hydrate was formed when liquid-assisted grinding was carried out using water-miscible liquids in which the solubility of adipic acid was higher than in others. The cocrystal hydrate was stable under room temperature and rather high relative humidity. Nevertheless, the betulin–adipic acid cocrystal was found to decompose under heating after the loss of water molecules, followed by phase transformation. An anhydrous BE-AA cocrystal was also prepared by the BE-AA physical mixture heating up to the point of adipic acid melting.
AB - The cocrystal of betulin (BE) with adipic acid (AA) was prepared using a liquid-assisted grinding method. The formation of BE-AA cocrystal was confirmed by powder X-ray diffraction, IR spectroscopy and thermal analysis methods. It was assumed that 1:1 BE-AA cocrystal hydrate was formed when liquid-assisted grinding was carried out using water-miscible liquids in which the solubility of adipic acid was higher than in others. The cocrystal hydrate was stable under room temperature and rather high relative humidity. Nevertheless, the betulin–adipic acid cocrystal was found to decompose under heating after the loss of water molecules, followed by phase transformation. An anhydrous BE-AA cocrystal was also prepared by the BE-AA physical mixture heating up to the point of adipic acid melting.
KW - Adipic acid
KW - Betulin
KW - Co-grinding
KW - Cocrystal hydrate
KW - Cocrystal stability
UR - http://www.scopus.com/inward/record.url?scp=85119507735&partnerID=8YFLogxK
U2 - 10.1007/s10973-021-11107-4
DO - 10.1007/s10973-021-11107-4
M3 - Article
AN - SCOPUS:85119507735
VL - 147
SP - 8235
EP - 8242
JO - Journal of Thermal Analysis and Calorimetry
JF - Journal of Thermal Analysis and Calorimetry
SN - 1388-6150
IS - 15
ER -
ID: 34707247