Crystal structures of 1,2,5-trimethoxy-3-(1-propenyl)benzene and 1,3,5-trimethoxy-2-(1-propenyl)benzene

• Autorzy: Wolska I. , Popławski J. , Łozowicka B.
• Języki publikacji: EN

Abstrakty

EN

The crystal structure of 1,2,5-trimethoxy-3-(1-propenyl)benzene (D) and 1,3,5-trimethoxy-2-(1-propenyl)benzene (F) have been determined by X-ray diffraction methods. The compounds crystalize in the monoclinic system, space group P2-1/c for (D) with a=8.173(2), b=11.725(2), c=12.275(2) A, beta=102.48(3) degree, V=1148.5(4) A(3), and P2-1/n for (F) with a=7.433(1), b=18.225(4), c=8.854(2) A, beta=108.51(3) degree, V=1137.4(4) A(3). Both, (D) and (F), carry E-propenyl side chains. The double bond lenghts observed in the propenyl groups of the compounds examined (1.307(3) and 1.281(4) A) deviate from the expected value (ca. 1.34 A). The angular deformation parameters were used in the analysis of the deformations of angles in the benzene ring. The existence of intra- and intermolecular C-H....0 hydrogen bonds was observed.

Słowa kluczowe

EN

crystal and molecular structure; 1,2,5-trimethoxy-3-(1-propenyl)benzene; 1,3,,5-trimethoxy-2-(1-pronenyl)benzene; alpha-asarone isomers; deformation parameters

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 1998
• Tom: Vol. 72, nr 10
• Strony: 2331--2341
• Opis fizyczny: Bibliogr. 23 poz., tab., rys.

Twórcy

autor

Wolska I.

autor

Popławski J.

autor

Łozowicka B.

• Faculty of Chemistry, Adam Mickiewicz University, ul. Grunwaldzka 6 60-780 Poznań, Poland