Acta Cryst. (2002). E58, m691-m693  [ doi:10.1107/S1600536802019888 ]

A one-dimensional Co^II coordination polymer exhibiting an unusual conformation for 1,2-bis(4-pyridyl)ethane

F. A. Almeida Paz, A. D. Bond, Y. Z. Khimyak and J. Klinowski

Abstract: The title compound, catena-poly[[[tetraaquacobalt(II)]--1,2-bis(4-pyridyl)ethane-²N:N] 2,6-naphthalenedicarboxylate], {[Co(C₁₂H₁₂N₂)(H₂O)₄](C₁₂H₆O₄)}_n or {[Co(BPE)(H₂O)₄](NDC)}_n [BPE is 1,2-bis(4-pyridyl)ethane and NDC is 2,6-naphthalenedicarboxylate], denoted CUmof-4, was synthesized under mild hydrothermal conditions. The crystal structure contains one-dimensional [Co(BPE)(H₂O)₄]_n²ⁿ⁺ coordination polymers, which stack along the b direction, alternating with uncoordinated NDC anions. The Co atom is located on a centre of symmetry. Hydrogen bonds between the cationic polymer and the anions give rise to a three-dimensional network.

Online 8 November 2002

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