Rectangular grid two-dimensional sheets of copper(II) bridged by both co-ordinated and hydrogen bonded 4,4′-bipyridine (4,4′-bipy) in [Cu(μ-4,4′-bipy)(H2O)2(FBF3) 2]·4,4′-bipy

The complex [Cu(µ-4,4′-bipy)(H 2 O) 2 (FBF 3 ) 2 ]·4,4′-bipy (4,4′-bipy = 4,4′-bipyridine), in which copper atoms are linked by Cu–4,4′-bipy–Cu and Cu–OH 2 ··· 4,4′-bipy ··· H 2 O–Cu assemblies, involving co-ordinated and hydrogen bonded 4,4′-bipy, respectively, to form two-dimensional rectangular grid sheets, has been isolated and structurally characterised.