Poly[(μ₄-chloranilato)bis-(saccharin)disodium(I)]

In the title compound {systematic name: poly[(4-2,5-dichloro-3,6-dihydr- oxy-1,4-benzoquinona-to)bis-[1,2-benzisothia-zol-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 octa-hedral geometry. There is an intra-molecular N - H⋯O 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 Na⋯Na and Na⋯Cl distances in the layer are 3.6006 (12) and 3.0680 (7) Å, respectively.