Acta Cryst. (2004). E60, m24-m26  [ doi:10.1107/S1600536803027272 ]

A coordination polymer of Co^II with 1,1'-(1,4-butanediyl)bis(imidazole)

J. Yang, J.-F. Ma and J.-F. Liu

Abstract: In the title compound, catena-poly[[[diaquaisonicotinatocobalt(II)]-di--1,1'-(1,4-butanediyl)bis(imidazole] tetrahydrate], {[Co(IN)₂L(H₂O)₂]·4H₂O}_n, where L is 1,1'-(1,4-butanediyl)bis(imidazole) (C₁₀H₁₄N₄) and IN is the isonicotinate anion (C₆H₄NO₂), the cobalt(II) cation, which is at an inversion center, is hexacoordinated by two water molecules and four N atoms from two L ligands and two isonicotinate anions. Each ligand L coordinates to two cobalt(II) cations, acting as a bridge. The cobalt(II) cations are bridged to form an infinite zigzag chain structure along the c axis. The polymeric chains are linked through a variety of hydrogen bonds to form a three-dimensional structure.

Online 12 December 2003

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