Acta Crystallographica Section C

Crystal Structure Communications

Volume 62, Part 9 (September 2006)

metal-organic compounds

dn3015 scheme

Acta Cryst. (2006). C62, m443-m447 [ 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

K. V. Domasevitch, V. D. Vreshch, A. B. Lysenko and H. Krautscheid

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) Å]. Weaker CuN interactions [2.405 (2)-2.499 (2) Å], 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 Å for (I)] or alternating [4.72 and 6.66 Å for (II)] interlayer separations. Guest methanol molecules in (II) reside between the distal layers and form weak hydrogen bonds to coordinated O atoms [OO = 3.018 (4) Å].

Formula: [Cu(C₉H₈NO₂)₂] and [Cu(C₉H₈NO₂)₂]·CH₄O


	Structure factor file (CIF format) (98.5 kbytes) [ doi:10.1107/S0108270106025339/dn3015Isup2.hkl ] Contains datablock I

	Structure factor file (CIF format) (224.3 kbytes) [ doi:10.1107/S0108270106025339/dn3015IIsup3.hkl ] Contains datablock II

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