Crystal structures of (E)-l-(3,4,5-trimethoxyphenyl)-2-nitroethene and (E)-l-(3,4,5-trimethoxyphenyl)-2-nitropropene

Authors
Silva, AJGC Giotto, MTS Mascarenhas, YP Sepulveda-Boza, S Cassels, BK
Citation
Ajgc. Silva et al., Crystal structures of (E)-l-(3,4,5-trimethoxyphenyl)-2-nitroethene and (E)-l-(3,4,5-trimethoxyphenyl)-2-nitropropene, BOL SOC CH, 44(4), 1999, pp. 413-422
Citations number
9
Categorie Soggetti
Chemistry
Journal title
BOLETIN DE LA SOCIEDAD CHILENA DE QUIMICA
ISSN journal
03661644 → ACNP
Volume
44
Issue
4
Year of publication
1999
Pages
413 - 422
Database
ISI
SICI code
0366-1644(199912)44:4<413:CSO(A(>2.0.ZU;2-4
Abstract
The crystal and molecular structures of (E)-1-(3,4,5-trimethoxyphenyl)-2-ni troethene (1), C11H13NO5, M-r = 239.2, and (E)-1 -(3,4,5-trimethoxyphenyl)- 2-nitropropene (2), C12H15NO5, M-r = 253.3, were determined by X-ray diffra ction. Compound 1: monoclinic, space group P2(1)/c, a = 7.429(2), b = 9.828 (3), c = 32.766(2) Angstrom, beta = 95.65(2)degrees, V = 2381(1) Angstrom(3 ), Z = 8. Compound 2: monoclinic, space group P2(1)/c, a = 8.888(3), b = 13 .650(3), c = 10.369(3) Angstrom, beta = 94.04(2)degrees, V = 1255(1) Angstr om(3), Z = 4. Compound 1 exhibits no unusual structural features. Compound 2 shows a side chain out of the ring plane and with expanded valence angles .