Bis[4-(4-pyridylmethoxy)phenol-κN]silver nitrate monohydrate

In the title compound, [Ag(C12H11NO2)2]NO3·H2O, the AgI ion is coordinated by two N atoms from two different 4-(4-pyridylmethoxy)phenol ligands, generating a nearly linear coordination geometry with an N—Ag—N angle of 167.1 (1)°. A three-dimensional supramolecular network is built from the uncoordinated nitrate anion, the water molecule and the cation through O—H⋯O hydrogen bonds.

In the title compound, [Ag(C 12 H 11 NO 2 ) 2 ]NO 3 ÁH 2 O, the Ag I ion is coordinated by two N atoms from two different 4-(4pyridylmethoxy)phenol ligands, generating a nearly linear coordination geometry with an N-Ag-N angle of 167.1 (1) . A three-dimensional supramolecular network is built from the uncoordinated nitrate anion, the water molecule and the cation through O-HÁ Á ÁO hydrogen bonds.
The author thanks Heilongjiang Institute of Science and Technology for supporting this study.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: NG2780).
Two terminal hydroxyl groups, one uncoordinate water and one nitrate ion are linked together to form a three dimensional network through intermolecular O-H···O hydrogen bonds ( Figure 2, Table 2).

Experimental
The synthesis of ligand see the literature (Gao et al. 2006;Zou et al. 2009). A solution of AgNO 3 (0.017 g, 0.10 mmol) in water (2 ml) was dropped slowly into a methanol solution (5 ml) of ligand (0.040 g, 2 mmol) to give a clear solution.
Colourless block crystals of title were obtained by slow evaporation of the clear solution under room temperature after a week.

Refinement
H atoms bound to C atoms and hydroxyl groups were placed in calculated positions and treated as riding on their parent atoms, with C-H = 0.93 Å(aromatic C), C-H = 0.97 Å (methene C), and with U iso (H) = 1.2U eq (C). The H atoms of water moleule were initially located in a difference Fourier map, but they were treated as riding on their parent atoms with O-H = 0.85 Å and with U iso (H) = 1.5 U eq (O).