%0 Journal Article
%T Di- and tetranuclear gadolinium (III) complexes of 2-hydroxypropane-1,2,3-tricarboxylic acid and 1,2,2-trimethylcyclopentane-1,3-dicarboxylic acid : identification and characterization
%A Adelkhalek Benajjar
%A Farid Hadhoudi
%A Miloudi Hlaibi
%A Mohammed Riri
%A Mustapha Hor
%A Samir Ezzemouri
%A Tarik Eljaddi
%J -
%D 2017
%R 10.14419/ijac.v5i2.8471
%X Our studying involved, Identification and characterization of two novel gadolinium complexes with 2-hydroxypropane-1,2,3-tricarboxylic acid (citric acid) noted H3L and 1,2,2-trimethylcyclopentane-1, 3-dicarboxylic acid (camphoric acid) noted H2L in aqueous solution and in pH range 5,5¨C7,5. These acids containing the donor atoms (oxygen of OH and COOH), the formatted complexes are colorless and have no absorption band UV¨Cvisible. So, to determine the composition and stabilities of these complexes in solution, we have used an analytical technique called £¿Indirect Photometry Detection (IPD) £¿ have identified multi-nuclear and multi-dentate complexes studied in this work. Giving for these colorless complexes with a mole ratio (M:L): (4:2) for Gd (III)¨CCitric acid and (2:2) Gd (III)¨CCamphoric acid. In addition, we have shown that the compositions and stabilities constant of these complexes are depended on the acidity of the medium.
%U https://www.sciencepubco.com/index.php/IJAC/article/view/8471