Email (record): Crystal structure of a one-dimensional looped-chain silver(I) coordination polymer: catena-poly[[silver(I)-bis­{μ-4-[1-(5′-isopropyl-[1,1′:3′,1′′-terphen­yl]-2′-yl)-1H-imidazol-2-yl]pyridine-κ(2) N:N′}] nitrate methanol monosolvate monohydrate]