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Titolo:
Molecular and crystal structure of 7-hydroxy-6,8-dimethoxyl-coumarin
Autore:
Li, C; Luo, BS; Sun, TE;
Indirizzi:
Wuhan Univ, Sch Chem & Environm Sci, Anal & Testing Ctr, Wuhan 430072, Peoples R China Wuhan Univ Wuhan Peoples R China 430072 r, Wuhan 430072, Peoples R China
Titolo Testata:
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
fascicolo: 2, volume: 20, anno: 2001,
pagine: 100 - 103
SICI:
0254-5861(2001)20:2<100:MACSO7>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Keywords:
crystal structure; ginkgo hairy root; coumarin;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Luo, BS Wuhan Univ, Sch Chem & Environm Sci, Anal & Testing Ctr, Wuhan 430072, Peoples R China Wuhan Univ Wuhan Peoples R China 430072 430072, Peoples R China
Citazione:
C. Li et al., "Molecular and crystal structure of 7-hydroxy-6,8-dimethoxyl-coumarin", CHIN J ST C, 20(2), 2001, pp. 100-103

Abstract

The title compound is separated from tile ginkgo hairy root culture. This compound (C11H10O5, M-r = 222. 19), crystallizes in the monoclinic system, space group P2(1)/n, with cell parameters: a = 9.571(2), h = 12.311(2), c =16.934(3)Angstrom, beta = 101.92(3)degrees, V = 1968.4 Angstrom (3) , Z = 8, D-c = 1.499g/cm(3); F(000) = 928.0, MoK alpha radiation, lambda = 0.71013 Angstrom, R = (0.051 and wR = 0.115 for 1605 independent reflections withI greater than or equal to4 sigma (I). In the molecule, the aromatic and lactone rings are coplanar nearly. One of the two methoxyls is almost coplanar, but another one deviates from the molecular plane. There are intermolecular hydrogen bonds in the crystal.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 23:20:04