a. Department of Chemistry, Faculty of Science, Urmia University, P O Box 57153-165, Urmia, Iran;
b. Department of Chemistry, Zanjan Branch, Islamic Azad University, P O Box 49195-467, Zanjan, Iran;
c. Department of Chemistry, Urmia Branch, Islamic Azad University, P O Box 969, Urmia, Iran;
d. Department of Chemistry, Faculty of Science, Shahid Chamran University, Ahvaz, Iran;
e. Faculty of Chemistry, University of Wrocław, 14 Joliot-Curie St., 50-383, Wrocław, Poland
10 September 2014
- Fund Project:
The title compound Ph3P=C(H)C(O)PhNO2 (L) has been prepared by the addition of triphenylphosphine in acetone as solvent to 2-bromo-1-(3-nitrophenyl)ethanone followed by the addition of alkaline solution of sodium hydroxide. The yellow crystals of the title ylide were grown in methanol/chloroform solution by drop method without stirring at room temperature. The solid state structure of ylide has been established by X-ray crystallography analysis. In the molecule of the title compound, the geometry around the P atom is nearly tetrahedral and the O atom is in synperiplanar orientation to the P atom. The nitrophenyl ring is twisted with respect to the plane of the carbonyl group through an angle of 36.6(1)°. The crystal (C26H20NO3P, Mr=425.40) belongs to the monoclinic system, space group P21/n with a=10.889(3), b=14.467(3), c=13.872(4)Å, β=103.08(3)°, V=2128.6(10)Å3, Z=4, T=100(2) K, R=0.059 and wR=0.163 for 3984 observed reflections with I>2σ(I).