Acta Cryst. (2008). E64, m462-m463  [ doi:10.1107/S1600536808003619 ]

Poly[ethanolbis(₃-2-thioxo-1,2-dihydropyridin-1-olato)dilithium(I)]

J. Hartung, N. Schneiders, I. Svoboda and H. Fuess

Abstract: The title compound, [Li₂(C₅H₄NOS)₂(C₂H₆O)]_n, having two formula units in the asymmetric unit, forms infinite chains of Li₂O₂ rhombi along b, consisting of four independent Li and O atoms. Metal binding to 2-thiooxo-1,2-dihydropyridin-1-olate occurs in a bidentate fashion via O and S, and in a monodentate manner via the N-oxide O atom. - Interactions between polymeric chains are evident from centroid-to-centroid distances of pyridinethione fragments of 3.461 (6)-3.607 (6) Å. The N-O and C-S bond lengths are distinctively different from those in hitherto investigated Ni^II, Zn^II and (H₃C)₂Tl^III complexes of 2-thiooxo-1,2-dihydropyridin-1-olate, but correlate with those reported for 1-hydroxy- and 1-alkoxypyridine-2(1H)-thiones in the solid state.

Online 8 February 2008

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