Crystal structure of poly[[[μ(4)-3-(1,2,4-triazol-4-yl)adamantane-1-carboxyl­ato-κ(5) N (1):N (2):O (1):O (1),O (1′)]silver(I)] dihydrate]

The heterobifunctional organic ligand, 3-(1,2,4-triazol-4-yl)adamantane-1-carboxyl­ate (tr-ad-COO(−)), was employed for the synthesis of the title silver(I) coordination polymer, {[Ag(C(13)H(16)N(3)O(2))]·2H(2)O}(n), crystallizing in the rare ortho­rhom­bic C222(1) space group. Alternation of the double μ(2)-1,2,4-triazole and μ(2)-η(2):η(1)-COO(−) (chelating, bridging mode) bridges between Ag(I) cations supports the formation of sinusoidal coordination chains. The Ag(I) centers possess a distorted {N(2)O(3)} square-pyramidal arrangement with τ(5) = 0.30. The angular organic linkers connect the chains into a tetra­gonal framework with small channels along the c-axis direction occupied by water mol­ecules of crystallization, which are inter­linked via O—H⋯O hydrogen bonds with carboxyl­ate groups, leading to right- and left-handed helical dispositions.