Journal
INORGANIC CHEMISTRY
Volume 49, Issue 22, Pages 10598-10605Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic101592h
Keywords
-
Categories
Funding
- U.S. Department of Energy, Office of Nuclear Energy at Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]
- DOE [DE-AC07-05ID14517]
Ask authors/readers for more resources
The complexation of neodymium(III) and europium(III) with lactate was studied at variable temperatures by potentiometry, absorption spectrophotometry, luminescence spectroscopy, and microcalorimetry. The stability constants of three successive lactate complexes (ML2+, ML2+, and ML3(aq), where M stands for Nd and Eu and L stands for lactate) at 10, 25, 40, 55, and 70 degrees C were determined. The enthalpies of complexation at 25 degrees C were determined by microcalorimetry. Thermodynamic data show that the complexation of trivalent lanthanides (Nd3+ and Eu3+) with lactate is exothermic and the complexation becomes weaker at higher temperatures. Results from optical absorption and luminescence spectroscopy suggest that the complexes are inner-sphere chelate complexes in which the protonated a-hydroxyl group of lactate participates in the complexation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available