
%0 Journal Article
%A Goodwin, HA 
%A Sylva, RN 
%T Metal complexes of 1,10-phenanthroline derivatives. I. Bis complexes of 2-Carboxy-1,10-phenanthroline with first row transition metal ions
%J Australian Journal of Chemistry
%D 1967/02/01
%V 20
%N 2
%P 217-225
%K 
%R https://doi.org/10.1071/CH9670217
%U https://www.publish.csiro.au/paper/CH9670217 
%X 2-Carboxy-1,10-phenanthroline has been prepared by brominating 2- methyl-phenanthroline and then hydrolysing in acidic solution the resultant 2-tribromomethyl derivative. The acid acts as a tridentate chelating agent and six-coordinate inner complexes of manganese(II), iron(II), cobalt(II), nickel(II), copper(II), and zinc(II) as well as a complex of iron(III) are described. The formulation of the complexes as six-coordinate is supported by their magnetic and spectral properties.  The temperature dependence of the magnetism of the iron(II) complex indicates that the complex is a simple paramagnetic. 
