Aqua(4,4'-dimethyl-2,2'-bipyridine-N,N')(malonato-O,O')copper(II) Dihydrate

The title compound, [Cu(C₃H₂O₄)(C₁₂H₁₂N₂)(H₂O)].2H₂O, lies on a crystallographic mirror. The Cu ion in the complex has a slightly distorted square-pyramidal coordination environment, with one water molecule in the apical position and two malonate O atoms and both N atoms of the bipyridine ligand defining the base. The five-membered chelate ring defined by N1, C5, C5′, N1′ and Cu is almost planar, while the ring defined by the malonate ligand (O1, C7, C8, C7′ and O1′) and Cu has an envelope conformation. Hydrogen bonding and π-π*-orbital inter­action between the bipyridine rings seem to determine the crystal packing.

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