Synthesis and structural characterisation of five copper(I) and silver(I) complexes with 2-aminopyridine (2-APy), [Cu(μ-Cl)(2-Apy)(PPh3)]2, [Ag(μ-X)(2-Apy)(PPh3)]2 (X=Cl, Br), [Ag(μ-ONO2)(2-Apy)(EPh3)]2 (E=P, As)
摘要:
Five new copper(I)/silver(I) complexes containing 2-aminopyridine, [Cu(mu-Cl)(2-Apy)(PPh3)](2) (1), [Ag(mu-Cl)(2-Apy)(PPh3)](2)(2), [Ag(mu-Br)(2-Apy)PPh3)](2)(3), [Ag(mu-ONO2)(2-Apy)(PPh3)](2)(4), [Ag(mu-ONO2)(2-Apy)(AsPh3)](2)(5) have been synthesised for the first time. Complexes 1-5 are obtained by the reactions of MX (MX = CuCl for 1: M = Ag for 2-5: X = Cl, Br for 2-3; X = NO3 for 4-5) with the monodentate ligands EPh3 (E = P for 1-4: E = As for 5) and 2-Apy in the molar ratio of 1: 1:2 in the mixed solvent of CH2Cl2 and MeOH. Complexes 1-5 are characterised by IR and X-ray diffraction. In 1-5, chloride, bromide and nitrate ions bridge two metal atoms to form dinuclear complexes containing the parallelogram cores M2X2 (M = Cu, Ag). (C) 2009 Elsevier Ltd. All rights reserved.