title: A benzopyran derivative substituted at position 3.
abstract: In (E)-3-[[(diphenoxyphosphoryl)methylhydrazono]methyl]-4H-1-benzopyran-4-one, C(23)H(19)N(2)O(5)P, the benzopyran-methylhydrazone moiety is planar and the two phenoxy phenyl rings are inclined at angles of 21.29 (6) and 89.33 (5) degrees. Weak C[bond]H...O and C[bond]H...N intramolecular interactions exert some influence on the planarity and orientation of that moiety.
authors.affiliation: Department of Crystallography and Crystallochemistry, University of Łódź, Pomorska 149/153, PL-90236 Łódź, Poland. arybarcz@krysia.uni.lodz.pl
authors.forename: Agnieszka J
authors.initials: AJ
authors.lastname: Rybarczyk-Pirek
authors.forename: Magdalena
authors.initials: M
authors.lastname: Małecka
authors.forename: Sławomir J
authors.initials: SJ
authors.lastname: Grabowski S
authors.forename: Jolanta
authors.initials: J
authors.lastname: Nawrot-Modranka