Triaqua(2,2′‐bipyridine‐κ2N,N′)(nitrato‐κO)manganese(II) nitrate

The crystal structure of the title compound, Mn(NO₃)(C₁₀H₈N₂)(H₂O)₃]NO₃, contains a monomeric Mn(NO₃)(bpy)(H₂O)₃]⁺ cation (bpy is 2,2′‐bi­pyridine) and a nitrate anion. The Mn^II ion is coordinated by one chelating bpy Mn—N 2.241 (3) and 2.259 (3) Å], three water mol­ecules Mn—O 2.120 (3)–2.188 (3) Å] and a nitrate ligand Mn—O 2.228 (2) Å] in a distorted octahedral geometry. There are O?H—O hydrogen‐bonding interactions between the ligated water mol­ecules and the ligated and unligated nitrate anions, resulting in double columns of stacked cations and anions.