Two-dimensional square-grid frameworks formed by self-associating copper(II) complexes with 1-(3-pyridyl)- and 1-(4-pyridyl)-substituted butane-1,3-diones

Konstantin V Domasevitch; Volodimir D Vreshch; Andrey B Lysenko; Harald Krautscheid

doi:10.1107/S0108270106025339

Two-dimensional square-grid frameworks formed by self-associating copper(II) complexes with 1-(3-pyridyl)- and 1-(4-pyridyl)-substituted butane-1,3-diones

Acta Crystallogr C. 2006 Sep;62(Pt 9):m443-7. doi: 10.1107/S0108270106025339. Epub 2006 Aug 31.

Authors

Konstantin V Domasevitch¹, Volodimir D Vreshch, Andrey B Lysenko, Harald Krautscheid

Affiliation

¹ Inorganic Chemistry Department, Kiev University, Volodimirska Street 64, Kiev 01033, Ukraine. dk@univ.kiev.ua

PMID: 16954632
DOI: 10.1107/S0108270106025339

Abstract

In bis[1-(3-pyridyl)butane-1,3-dionato]copper(II) (the Cu atom occupies a centre of inversion), [Cu(C9H8NO2)2], (I), and bis[1-(4-pyridyl)butane-1,3-dionato]copper(II) methanol solvate, [Cu(C9H8NO2)2].CH3OH, (II), the O,O'-chelating diketonate ligands support square-planar coordination of the metal ions [Cu-O=1.948 (1)-1.965 (1) A]. Weaker Cu...N interactions [2.405 (2)-2.499 (2) A], at both axial sides, occur between symmetry-related bis(1-pyridylbutane-1,3-dionato)copper(II) molecules. This causes their self-organization into two-dimensional square-grid frameworks, with uniform [6.48 A for (I)] or alternating [4.72 and 6.66 A for (II)] interlayer separations. Guest methanol molecules in (II) reside between the distal layers and form weak hydrogen bonds to coordinated O atoms [O...O=3.018 (4) A].