Journal of Structural Chemistry, volume 61, issue 8, pages 1260-1266

CRYSTALLINE FORMS OF BETULIN: POLYMORPHISM OR PSEUDOPOLYMORPHISM?

Drebushchak T. N. ^{1, 2}

Mikhailovskaya A V ^{1, 2}

Drebushchak V A ^{2, 3}

Mikhailenko M A ¹

Myz S A ¹

Shakhtshneider T. P. ¹

Kuznetsova S.A ⁴

Hide authors affiliations Show authors affiliations: 4 affiliations

Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia |

Novosibirsk state University, Novosibirsk, Russia |

Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia |

⁴

Institute of Chemistry and Chemical Technology, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia

Institute of Chemistry and Chemical Technology of the Siberian Branch of the Russian Academy of Sciences

Federal Research Center "Krasnoyarsk Science Center" of the Siberian Branch of the Russian Academy of Sciences

Publication type: Journal Article

Publication date: 2020-08-01

Pleiades Publishing

Journal: Journal of Structural Chemistry

Quartile SCImago

Quartile WOS

Impact factor: 0.8

ISSN: 00224766, 15738779

DOI: 10.1134/s0022476620080119

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Materials Chemistry

Inorganic Chemistry

Physical and Theoretical Chemistry

Abstract

By recrystallization with different solvents as well as decomposition of betulin ethanol solvate at room temperature a new crystalline form of the biologically active compound betulin, namely hemihydrate of betulin, is obtained. By single crystal X-ray diffraction data the crystal structure of hemihydrate of betulin is determined. By powder X-ray thermodiffraction and differential scanning calorimetry it is found that when hemihydrate of betulin is heated to melting, Н2О molecules are removed and solid-phase transformations occur, which are related to the formation of an intermediate crystalline form and an orthorhombic modification of betulin.

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MATEC Web of Conferences	MATEC Web of Conferences, 1, 16.67% MATEC Web of Conferences 1 publication, 16.67%
International Journal of Molecular Sciences	International Journal of Molecular Sciences, 1, 16.67% International Journal of Molecular Sciences 1 publication, 16.67%
Journal of Thermal Analysis and Calorimetry	Journal of Thermal Analysis and Calorimetry, 1, 16.67% Journal of Thermal Analysis and Calorimetry 1 publication, 16.67%
Biomass Conversion and Biorefinery	Biomass Conversion and Biorefinery, 1, 16.67% Biomass Conversion and Biorefinery 1 publication, 16.67%
Powders	Powders, 1, 16.67% Powders 1 publication, 16.67%
Crystal Growth and Design	Crystal Growth and Design, 1, 16.67% Crystal Growth and Design 1 publication, 16.67%
	1

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	1 2
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 2, 33.33% Multidisciplinary Digital Publishing Institute (MDPI) 2 publications, 33.33%
Springer Nature	Springer Nature, 2, 33.33% Springer Nature 2 publications, 33.33%
EDP Sciences	EDP Sciences, 1, 16.67% EDP Sciences 1 publication, 16.67%
American Chemical Society (ACS)	American Chemical Society (ACS), 1, 16.67% American Chemical Society (ACS) 1 publication, 16.67%
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Drebushchak T. N. et al. CRYSTALLINE FORMS OF BETULIN: POLYMORPHISM OR PSEUDOPOLYMORPHISM? // Journal of Structural Chemistry. 2020. Vol. 61. No. 8. pp. 1260-1266.

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Drebushchak T. N., Mikhailovskaya A. V., Drebushchak V. A., Mikhailenko M. A., Myz S. A., Shakhtshneider T. P., Kuznetsova S. CRYSTALLINE FORMS OF BETULIN: POLYMORPHISM OR PSEUDOPOLYMORPHISM? // Journal of Structural Chemistry. 2020. Vol. 61. No. 8. pp. 1260-1266.

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