Poly[bis[aquamercury(I)]-di-μ-aqua-μ-1,5-naphthalenedisulfonato]

Abstract

In the crystal structure of the title polymeric complex, [Hg2(C10H6O6S2)(H2O)4]n, the metal atom of an H2O→Hg⋯Hg←H2O unit [Hg←Owater = 2.124 (7) Å] is linked to the metal atom of an adjacent unit by two water molecules [Hg←Owater = 2.619 (7) and 2.872 (7) Å], giving rise to a polycationic chain. Adjacent chains are linked through the dianion via a weaker interaction [Hg⋯Osulfonate = 3.062 (7) Å] to form layers. The H2O→Hg⋯Hg←H2O unit, the (H2O→Hg)2 parallelogram and the dianion all lie on centres of inversion. Hydrogen bonding consolidates the layers of the structure into a three‐dimensional network architecture.

Aquabis(1,2-ethanediamine-κ2 N,N′)hydroxidocobalt(III) naphthalene-1,5-disulfonate monohydrate

“…The naphthalene-1,5-disulfonate dianion affords a number of crystalline complexes with metal cations. In some of these, the dianion binds directly to the metal cation, for example in the Cu , Ba and Hg (Zhu et al, 2005) complexes. In other cases, the dianion does not bind directly to the metal, for example the tetrachlorostannate(II) complex (Gao, Huo, Zhao & Ng, 2005).…”