Complexation of actinides with derivatives of oxydiaceticacid

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Complexation of Np(V), U(VI) and Nd(III) with dimethyl-3-oxa-glutaramic acid (DMOGA) and tetramethyl-3-oxa-glutaramide (TMOGA) was studied in comparison with the complexation with oxydiacetic acid (ODA). Stability constants and enthalpy of complexation were determined by potentiometry, spectrophotometry and calorimetry. Thermodynamic parameters, in conjunction with structural information of solid compounds, indicate that DMOGA and TMOGA form tridentate complexes with the ether-oxygen participating in bonding with actinide/lanthanide ions. The trends in the stability constants, enthalpy and entropy of complexation are discussed in terms of the difference in the hydration of the amide groups and carboxylate groups and the difference in the charge density of ... continued below

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Rao, Linfeng & Tian, Guoxin January 4, 2006.

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Complexation of Np(V), U(VI) and Nd(III) with dimethyl-3-oxa-glutaramic acid (DMOGA) and tetramethyl-3-oxa-glutaramide (TMOGA) was studied in comparison with the complexation with oxydiacetic acid (ODA). Stability constants and enthalpy of complexation were determined by potentiometry, spectrophotometry and calorimetry. Thermodynamic parameters, in conjunction with structural information of solid compounds, indicate that DMOGA and TMOGA form tridentate complexes with the ether-oxygen participating in bonding with actinide/lanthanide ions. The trends in the stability constants, enthalpy and entropy of complexation are discussed in terms of the difference in the hydration of the amide groups and carboxylate groups and the difference in the charge density of the metal ions.

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  • Materials Research Society Meeting, Boston, MA,Nov. 28-Dec. 2, 2006

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  • Report No.: LBNL--59274
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 891220
  • Archival Resource Key: ark:/67531/metadc875482

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  • January 4, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Sept. 30, 2016, 3:42 p.m.

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Rao, Linfeng & Tian, Guoxin. Complexation of actinides with derivatives of oxydiaceticacid, article, January 4, 2006; (digital.library.unt.edu/ark:/67531/metadc875482/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.