Journal
JOURNAL OF COORDINATION CHEMISTRY
Volume 58, Issue 15, Pages 1261-1269Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00958970500038738
Keywords
nitrilotriacetic acid; zirconyl; uranyl; infrared spectra; thermal analysis
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Four new complexes [UO2(HNTA)(H2O)] center dot 3H(2)O, Na[UO2(NTA)] center dot (H2O), [ZrO(HNTA) (H2O)] center dot 3H(2)O and Na[ZrO(NTA)] center dot H2O were obtained by the reactions of UO22+ and ZrO2+ salts with nitrilotriacetic acid ( NTA) dissolved in water and NaOH aqueous solution. Infrared spectra of the solid complexes have been obtained and assigned on the basis of C-s symmetry. Octahedral and polymeric chain structures are adopted for the uranyl and zirconyl NTA complexes, respectively. Thermogravimetric (TG) and differential thermal analysis (DTA) data are in accordance with the proposed structures and show that the complexes decompose to metal oxides.
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