Crystalline Structure of Mangiferin,a C‐Glycosyl‐Substituted 9H‐Xanthen‐9‐one Isolated from the Stem Bark of Mangifera indica |
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| Authors: | José W. da Cruz Jr. Lucas R. de Moraes Marcelo H. dos Santos Geraldo Alves da Silva Maisa R. P. L. Brigagão Javier Ellena Antonio C. Doriguetto |
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| Affiliation: | 1. Laboratório de Fitoquímica e Química Medicinal, Departamento de Ciências Exatas, Universidade Federal de Alfenas – UNIFAL‐MG, 37130‐000, Alfenas – MG, Brazil;2. Laboratório de Cristalografia, Departamento de Ciências Exatas, Universidade Federal de Alfenas – UNIFAL‐MG, 37130‐000, Alfenas – MG, Brazil, (phone: +55‐35‐3299‐1261;3. fax: +55‐35‐3299‐1262);4. Instituto de Física de S?o Carlos, Universidade de S?o Paulo, CP 369, 13560‐970, S?o Carlos – SP, Brazil |
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| Abstract: | ![]()
The crystalline structure of mangiferin (=2‐β‐D ‐glucopyranosyl‐1,3,6,7‐tetrahydroxy‐9H‐xanthen‐9‐one; 1 ), a biologically active xanthenone C‐glycoside, isolated from the stem bark of Mangifera indica (Anacardiaceae), was unambiguously determined by single‐crystal X‐ray diffraction (XRD). The crystal structure is summarized as follows: triclinic, P1, a=7.6575(5), b=11.2094(8), c=11.8749(8) Å, α=79.967(5), β=87.988(4), γ=72.164(4)°, V=955.3(1) Å3, and Z=2. The structure also shows two molecules in the asymmetric unit cell and five crystallization H2O molecules. The packing is stabilized by several intermolecular H‐bonds involving either the two symmetry‐independent mangiferin molecules 1a and 1b , or the H2O ones. |
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| Keywords: | Mangifera indica Mangiferin 9H‐Xanthen‐9‐one X‐Ray crystallography |
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