Synthesis and X-ray characterization of the new hydrogen-bonded framework [Cu(2,2′-bipy){OP(CH2PO3H2)(CH2PO3H)2}]n

The reaction of tris(dihydroxyphosphonomethyl)phosphinoxide, 2,2′-bipyridyne and copper(II) chloride gave rise to the complex [Cu(2,2′-bipy){OP(CH2PO3H2)(CH2PO3H)2}]n, where an intricate system of hydrogen bonding interactions creates a 2D layer network.