title: 3-(4-cyanophenyl)pentane-2,4-dione and its copper(II) complex.
abstract: The beta-diketone 3-(4-cyanophenyl)pentane-2,4-dione crystallizes as the enol tautomer 4-(2-hydroxy-4-oxopent-2-en-3-yl)benzonitrile, C(12)H(11)NO(2), (I), with an intramolecular O-H.O hydrogen bond [O.O = 2.456 (2) A]. Reaction of (I) with copper acetate monohydrate in the presence of triethylamine leads to the formation of the copper(II) complex bis[3-(4-cyanophenyl)pentane-2,4-dionato-kappa(2)O,O]copper(II), [Cu(C(12)H(10)NO(2))(2)], (II). In the structure of (II), the Cu atom is coordinated by four beta-diketonate O atoms in a slightly distorted square-planar geometry, with Cu-O distances in the range 1.8946 (11)-1.9092 (11) A. The nitrile moieties in (II) make it a candidate for reaction with other metal ions to produce supramolecular structures.
authors.affiliation: Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803-1804, USA.
authors.forename: Banglin
authors.initials: B
authors.lastname: Chen
authors.forename: Frank R
authors.initials: FR
authors.lastname: Fronczek
authors.forename: Andrew W
authors.initials: AW
authors.lastname: Maverick