Comparative X-Ray Single Crystal Study of Acetylated-β-D-Galactopyranosyls Azide and Isothiocyanate

Autor:	Hélène Parrot Lopez, Rima Kassab, Françoise Villain, Colette de Rango, Mohamed Selkti
Rok vydání:	1999
Předmět:	inorganic chemicals Anomer Stereochemistry Organic Chemistry Intermolecular force Substituent Biochemistry chemistry.chemical_compound chemistry Group (periodic table) Atom Isothiocyanate Azide Single crystal
Zdroj:	Journal of Carbohydrate Chemistry. 18:1019-1032
ISSN:	1532-2327 0732-8303
DOI:	10.1080/07328309908544051
Popis:	The structures of two peracetylated β-D-galactopyranosides substituted at the anomeric C atom with either an isothiocyanate or an azide group, have been determined by single crystal X-ray diffraction analysis. The two compounds show very similar molecular conformation, except for the substituent groups at the anomeric C atom and for the acetyl groups of the O6 atoms. They crystallize in different infinite chain-type structures. While the isothiocyanate group extends in a large intermolecular space, the azide group is placed in a more crowded environment.
Databáze:	OpenAIRE
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