2013
DOI: 10.4236/ojpc.2013.31007
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Composition, Stability and Probable Structure of a Colourless Organometallic Complex (Gd(III)-Malic Acid)

Abstract:

The formation of colourless gadolinium complexes (x,y,z), between x gadolinium ions, y ligands and z protons, of some organic acids, has been studied in aqueous solution. In this work we present the results of investigations on the interaction of the gadolinium ion (Gd3+) with malic acid (C4H6O5, a-hydroxyl dicarboxylic acid), in dilute aqueous solution for pH values between 5.5 and 7.5. Colourless gadolinium com… Show more

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Cited by 1 publication
(7 citation statements)
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“…In this sense and in the my works published [7][8][9][10] we have demonstrated, experimentally, that the composition and stability of the colored sacrificial complex were determined, we found a complex type (3, 2, 3) and stability constant 16.27 323 logK  in pH range 5.50 -7.50, and the probable reaction for this complex faormation is :…”
Section:  mentioning
confidence: 58%
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“…In this sense and in the my works published [7][8][9][10] we have demonstrated, experimentally, that the composition and stability of the colored sacrificial complex were determined, we found a complex type (3, 2, 3) and stability constant 16.27 323 logK  in pH range 5.50 -7.50, and the probable reaction for this complex faormation is :…”
Section:  mentioning
confidence: 58%
“…The absence of doubling new peaks, which appeared, gives us the idea that complexes structures are symmetrical. So the general formulas of the three characterized complexes are : [8][9][10], [28], [34]. The complexes identified, in this work, are the type (2,2,2) for system Gd-mandelate and (3,2,4) for Gd-Serine complex.…”
mentioning
confidence: 81%
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