Differences in the crystal structures of two dialkyl diester triphenyl-phospho-nium ylids
Keywords: chemistry, acid, crystal, hydrogen, x-ray, structure, ray, compound, bonds, esters, molecular, article, organophosphorus, packing, crystallography, compounds, derivative, chemical, X, dimethyl, malonic, Crystallography,, Malonates, diesters
Abstract
Hydrogen bonding and crystal packing play major roles in determining the conformations of ethyl methyl 2-(triphenyl-phospho-ranyl-idene)malonate, Ph3P=C(CO2CH3)CO2CH2CH3 or C24H23O4P, (I), and dimethyl 2-(triphenyl-phosphor- anyl-idene)malonate, Ph3P=C(CO2CH3)2 or C23H21O4P, (II). In (I), the acyl O atom of the ethyl ester group is anti to the P atom, while the O atom of the methyl ester group is syn. In (II), the dimethyl diester is a 1:1 mixture of anti-anti and syn-anti conformers. © International Union of Crystallography 2007.
Más información
Título según SCOPUS: | Differences in the crystal structures of two dialkyl diester triphenyl-phospho-nium ylids |
Título de la Revista: | ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS |
Volumen: | 63 |
Número: | 4 |
Editorial: | WILEY-BLACKWELL PUBLISHING, INC |
Fecha de publicación: | 2007 |
Idioma: | eng |
URL: | http://www.scopus.com/inward/record.url?eid=2-s2.0-34147108735&partnerID=q2rCbXpz |
DOI: |
10.1107/S0108270107010542 |
Notas: | SCOPUS |