Poly[ethanolbis(μ3-2-thioxo-1,2-dihydro-pyridin-1-olato) dilithium(I)]

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-thio-oxo-1,2-dihydro- pyridin-1-olate occurs in a bidentate fashion via O and S, and in a monodentate manner via the N-oxide O atom. π-π Inter-actions between polymeric chains are evident from centroid-to-centroid distances of pyridine-thione 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 NiII, ZnII and (H3C)2TlIII complexes of 2-thio-oxo-1,2-dihydro-pyridin-1-olate, but correlate with those reported for 1-hydr-oxy- and 1-alkoxy-pyridine-2(1H)- thio-nes in the solid state.