cis-aquabis(2,2′-bipyridine-N,N′)[dichromato(2-)-O 1]nickel(II)

The molecular structure of the title compound, [Ni(C10H8N2)(2) (H2O){Cr2O7}], contains an Ni-II atom with a distorted cis-octahedral coordination formed by two chelating bipyridine (bipy) ligands [mean Ni-N-bipy = 2.068 (3) Angstrom], one water molecule [Ni-O = 2.086 (3) Angstrom] and an O atom of the dichromate anion [Ni-O = 2.083 (2) Angstrom]. One of the water H atoms is involved in the intramolecular hydrogen bond with the terminal O atom of the dichromate ligand [O . . .O 2.743 (5) Angstrom], whereas its second H atom participates in the intermolecular hydrogen bonding [O . . .O 2.688 (4) Angstrom]; the latter is responsible for the formation of the infinite chains stretching along the polar c axis of the crystal.