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(Z)-α-Chloromethyl-3,3',4,4'-tetramethoxystilbene

Rolf Stomberg ; Vratislav Langer (Institutionen för oorganisk miljökemi) ; Shiming Li (Institutionen för skogsindustriell kemiteknik) ; Knut Lundquist (Institutionen för skogsindustriell kemiteknik)
Acta Crystallographica, Section E: Structure Reports (ISSN 1600-5368). Vol. E59 (2003), 4, p. o583-o585.
[Artikel, refereegranskad vetenskaplig]

The title compound, C19H21ClO4, adopts a non-planar conformation. The angle between the aromatic ring planes is 75.74(6)°. The angle between the plane of the aromatic ring attached to the C atom carrying the chloromethyl substituent and the plane defined by the ethylene group and the atoms attached to it is 40.60(6)°. The angle between this latter plane and the plane of the second aromatic ring is 35.29(6)°. The arrangement of the molecules in the crystal lattice can be attributed to weak C-H...O and C-H...Cl hydrogen bonding. Stereoisomers of methyl 2,3-bis(4-acetoxy-3-methoxyphenyl)-2-propenesulfonate are assigned, based on 1H NMR spectral comparisons with the title compound and the isomeric E form.

Nyckelord: X-ray diffraction, conformation



Denna post skapades 2006-08-29. Senast ändrad 2007-10-18.
CPL Pubid: 3650

 

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Institutioner (Chalmers)

Institutionen för oorganisk miljökemi (1900-2004)
Institutionen för skogsindustriell kemiteknik (1990-2003)

Ämnesområden

Kemi

Chalmers infrastruktur