Acta Crystallographica Section C

Crystal Structure Communications

Volume 64, Part 8 (August 2008)

metal-organic compounds

sk3226 scheme

Acta Cryst. (2008). C64, m277-m279 [ doi:10.1107/S0108270108018039 ]

An interpenetrating primitive cubic net formed by hydrogen bonds and coordination bonds in catena-poly[[bis(methanol-O)bis(thiocyanato-N)iron(II)]--1,2-bis(4-pyridylmethylene)hydrazine-²N:N']

L. Öhrström, V. Langer and M. Ghazzali

Abstract: In the title compound, [Fe(NCS)₂(C₁₂H₁₀N₄)(CH₄O)₂]_n, at 153 (2) K, the Fe atom is located on an inversion centre, as is the centre of the N-N bond in the ligand molecule. The structure contains a one-dimensional coordination polymer with an FeFe distance of 15.866 (7) Å and can be described as two interpenetrating six-connected primitive cubic (pcu) three-dimensional networks when additional intermolecular O-HS hydrogen bonds are taken into account. The compound is not isostructural with the corresponding Mn^II compound as they differ in the rotation around the M-O bond by 90°, giving rise to completely different hydrogen-bond patterns. This study demonstrates the impact of conformational differences on the final supramolecular arrangement.

Formula: [Fe(NCS)₂(C₁₂H₁₀N₄)(CH₄O)₂]