title: O-4-Chloro-benzoyl diphenyl-seleno-phosphinate.
abstract: The title compound, C(19)H(14)ClO(2)PSe, was obtained in the reaction of the diphenyl-monoseleno-phosphinic acid ammonium salt with 4-chloro-benzoyl chloride. The dihedral angle between the P-bonded aromatic rings is 72.64 (14)°. Packing of the mol-ecules in the crystal is reinforced by π-π stacking inter-actions between two inversion-related 4-chloro-benzene rings [centroid-centroid separation = 4.189 (2) Å] and a C-H⋯O interaction also occurs.
authors.affiliation: Chemical Faculty, Gdansk University of Technology, Narutowicza 11/12, Gdansk PL-80233, Poland.
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Cholewinski
authors.forename: Jaroslaw
authors.initials: J
authors.lastname: Chojnacki
authors.forename: Jerzy
authors.initials: J
authors.lastname: Pikies
authors.forename: Janusz
authors.initials: J
authors.lastname: Rachon