Layered coordination polymer of silver methanesulfonate with 2,3,5,6-tetramethylpyrazine

The complex Ag₂(Me₄-Pyz)(CH₃SO₃)₂]·2H₂O is synthesized, and its structure is determined. The crystals are monoclinic, space group P2₁ /n,a = 11.821(1), b = 4.906(1), c = 15.782(1) Å,β = 94.34(1) °, V = 912.5(2) ų, ρ(calcd) = 2.104 g/cm³, Z = 2. The Ag⁺ ion is coordinated at the vertices of the distorted tetrahedron by the nitrogen atom of tetramethylpyrazine and three oxygen atoms of two methanesulfonate ions (Ag(1)-N(1) 2.283(2), Ag (1)-O(RSO ₃ ^? )2.386(3)-2.451(2) Å, angles at the Ag atom 86.8(1)°–129.1(1)°). The structure contains layers of sulfonate-silver chains and tetramethylpyrazine molecules extended along the direction 101].