Synthesis and characterization of mixed ligand complexes of copper with nalidixic acid and (NN) donors. Crystal structure of [Cu(Phen)(Nal)-(H 2O)]NO 3·3H 2O

Abstract

The synthesis of two new mixed ligand complexes of Cu(II), [Cu(Phen)(Nal)] + and [Cu(Bipy)-(Nal)] +, is presented (Nal= nalidixate). The results obtained confirm those suggested in a previous paper: the nalidixic acid ( I) binds to metal ions by the 3-carboxylate and 4-oxo groups in the solid state. The complex [Cu(Phen)(Nal)(H 2O)]NO 3·3H 2O is triclinic with a = 16.654(3), b = 11.130(2), c = 7.918(2) Å, α = 98.53(2), β = 112.12(2), γ = 89.94(2)°, V = 1342.2(8) Å 3, P I - , D x = 1.551 g cm −3, Z = 2, F(000) = 650, λ(Mo Kα) = 0.71069 Å, μ(Mo Kα) = 9.20 cm −1, 288 K.