618084-69-8Relevant academic research and scientific papers
Reactions between Cu(II) halide complexes of 2,2′-dipyridylamine and nitrophenolates. X-ray diffraction structure of the [bis(2,2′-dipyridylamine)di(p-nitrophenolato)di(μ-methoxo) dicopper(II)], [Cu(dipyam)(pnp)(μ-OCH3)]2, a dimeric complex containing axial phenoxo ligands in square-pyramidal arrangements
Camus, Annamaria,Facchinetti, Alessandro,Marsich, Nazario,Manotti Lanfredi, Anna Maria,Massera, Chiara,Ugozzoli, Franco
, p. 128 - 134 (2003)
The reaction between the [Cu(dipyam)Br2] complex (dipyam=2,2′-dipyridylamine) and nitrophenolates gave products of exchange reactions between halides and phenolates. Starting from [Cu2(dipyam)2(OH)2(H2O)]Cl 2·2H2O, o- and p-nitrophenolate complexes with the same rough formula Cu(dipyam)(OR)(OCH3) (OR=o- or p-nitrophenolate) but a different chemical behaviour have been obtained. The X-ray diffraction analysis shows that the derivative of the p-nitrophenolate is an interesting dimer [Cu(dipyam)(pnp)(μ-OCH3)]2 (pnp=p-nitrophenolate), with two centrosymmetrically related five-coordinated copper(II) ions, having a distorted square-pyramidal geometry defined by axial phenolate ligands and by equatorial dipyam nitrogens and μ-methoxo oxygen bridges. The bridging arrangement forms a Cu2O2 core, with a Cu?Cu separation of 3.062(2) A?. The crystal structures of the [Cu(dipyam)(pnp)2]·2H2O and [Cu(dipyam)(onp)2] complexes (onp=o-nitrophenolate) are also reported.
