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)

Five new copper(I)/silver(I) complexes containing 2-aminopyridine, [Cu(μ-Cl)(2-Apy)(PPh3)]2(1), [Ag(μ-Cl)(2-Apy)(PPh3)]2(2), [Ag(μ-Br)(2-Apy)PPh3)]2(3), [Ag(μ-ONO2)(2-Apy)(PPh3)]2(4), [Ag(μ-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).

Five new complexes [Cu(μ-Cl)(2-Apy)(PPh3)]21, [Ag(μ-Cl)(2-Apy)(PPh3)]22, [Ag(μ-Br)(2-Apy)(PPh3)]23, [Ag(μ-ONO2)(2-Apy)(PPh3)]24, [Ag(μ-ONO2)(2-Apy)(AsPh3)]25 have been synthesised by the reactions of MX with EPh3 and 2-aminopyridine in mixed CH2Cl2 and MeOH. Complexes 1–5 are characterised by X-ray diffraction. In 1–5, two anions bridge two metal atoms to form dinuclear complexes.Figure optionsDownload as PowerPoint slide