title: Investigations on benz[1,2]oxaphosphinane derivatives.
abstract: The structures of two compounds, 3-[1-(2-hydroxyethylamino)ethylidene]-2-methoxy-3,4-dihydro-1,2lambda(5)-benzoxaphosphinane-2,4-dione, C(13)H(16)NO(5)P, and 3-[1-(2-hydroxy-ethylamino)ethylidene]-2-methoxy-6-methyl-3,4-dihydro-1,2lambda(5)-benzoxaphosphinane-2,4-dione, C(14)H(18)NO(5)P, have been studied and compared. The oxophosphinane rings have a half-chair conformation and extra six- and five-membered rings are formed by intramolecular N-H...O hydrogen bonds. An intermolecular O-H...O hydrogen bond is also observed.
authors.affiliation: Department of Crystallography, University of Lódź, Poland. malecka@krysia.uni.lodz.pl
authors.forename: M
authors.initials: M
authors.lastname: Małecka
authors.forename: E
authors.initials: E
authors.lastname: Budzisz
mesh_terms: D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008968:Molecular Conformation; D010720:Phosphines / Q000737:chemistry*
chemical_list: D010720:Phosphines; C435285:benz(1,2)oxaphosphinane