%0 Journal Article
%T Synthesis, structural and spectroscopic studies of novel azo-containing N,O-bonded complexes in the ¦Á-Iminoketone and Azophenolate forms
%A Visentin
%A Lorenzo C.
%A Ferreira
%A Leonardo C.
%A Bordinh£¿o
%A Jairo
%A Filgueiras
%A Carlos A. L.
%J Journal of the Brazilian Chemical Society
%D 2010
%I Sociedade Brasileira de Qu¨ªmica, SBQ
%R 10.1590/S0103-50532010000700005
%X this article describes the synthesis and the spectroscopic and structural characterization of two novel azo-containing complexes, cis-bis[4-nitro-2-(4-nitrophenylazo)-phenolate-¦Ên1]bis(piridino-¦Ên)cadmium(ii), 1, and cis-bis[2-(4-phenylazo-phenylimino)-2h-acenaphthylen-1-one]dichloromercury(ii), 2. in spite of the different metal centres, both complexes show an n,o-bidentate complexation to the metal. in 1 the metal coordinates to an azo n and to a phenolate o atom, whereas in 2 the metal binds to an o and an n atom of the ¦Á-iminoketone. both complexes show intramolecular ¦Ð-¦Ð interactions, which play an important role in their molecular structures. in addition they also present non-classical h-bonding, which is crucial to their supramolecular arrangements. moreover, 2 is the first case in the literature of a complex with a new class of ligand, an azoiminoketone, as well as the first case of an ¦Á-iminoketone hg complex.
%K ¦Á-iminoketone
%K azo-group
%K ¦Ð-¦Ð interactions
%K non-classical h-bonds.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532010000700005&lng=en&nrm=iso&tlng=en