Acta Cryst. (2007). E63, m1383-m1384  [ doi:10.1107/S1600536807016728 ]

Poly[(₄-chloranilato)bis(saccharin)disodium(I)]

M. S. Refat, H. A. Hashem, K. Gotoh and H. Ishida

Abstract: In the title compound {systematic name: poly[(₄-2,5-dichloro-3,6-dihydroxy-1,4-benzoquinonato)bis[1,2-benzisothiazol-3(2H)-one 1,1-dioxide]disodium(I)]}, [Na₂(C₆Cl₂O₄)(C₇H₅NO₃S)₂]_n, the Na^I atom is coordinated by six O atoms from three chloranilate ions and two saccharin ligands in a distorted octahedral geometry. There is an intramolecular N-HO hydrogen bond between the saccharin ligand and the chloranilate dianion. Each O atom of the chloranilate ion bonds to two Na^I atoms, while the saccharin ligand bridges the Na^I atoms via the carbonyl O atom and one of the sulfonyl O atoms. The Na atoms and bridging ligands form layers parallel to the ab plane at z = 0 and z = . The shortest NaNa and NaCl distances in the layer are 3.6006 (12) and 3.0680 (7) Å, respectively.

Online 20 April 2007

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