Poly[(μ(4)-5-bromo-pyridine-3-sulfonato)-silver(I)]

Abstract

The silver(I) complex, [Ag(C(5)H(3)BrNO(3)S)](n), was obtained by reaction of AgNO(3) and 5-bromopyridine-3-sulfonic acid. The Ag(I) ion is coordinated by an O(3)N donor set in a slightly distorted tetra-hedral geometry. The Ag(I) ions are linked by μ(4)-5-bromo-pyridine-3-sulfonate ligands, forming a layer parallel to (100). The layers are further connected via C-H⋯Br hydrogen-bonding inter-actions into a three-dimensional supra-molecular network. The Ag⋯Ag separation is 3.0159 (6) Å, indicating the presence of argentophilic inter-actions.

Fig. 1.

ORTEP drawing of 1 with 50% thermal ellipsoids with hydrogen atoms being omitted for clarity. (Symmetry codes: A: x, 1 + y, z; B: 1/2 - x, 3/2 - y, - z; C: x, 1 - y, -1/2 + z; D: x, 1 - y, 1/2 + z;).

Fig. 2.

View of two-dimensional layer of 1 along the a axis. The yellow–green bonds represent the 1-D chain originating from Ag and SO3 groups of 5-Bromopyridine-3-sulfonato ligands. The silver-silver interactions are represented as orange dashed lines (H atoms are omitted for clarity).

Fig. 3.

Three-dimensional supramolecular network of 1 showing C3—H3···Br hydrogen-bonding interactions (green dashed lines).