Journal article
Interplay of Condensation and Chelation in Binary and Ternary Th(IV) Systems
Inorganic chemistry, Vol.54(4), pp.1395-1404
02/16/2015
DOI: 10.1021/ic502313y
PMID: 25587792
Abstract
Th(IV) readily undergoes hydrolysis and condensation in aqueous solutions to form polynuclear molecular species and the system becomes increasingly complicated when organic chelators or other metals are present in solution, leading to the formation of complexes with vastly different structural topologies. Five compounds containing binary and ternary Th(IV) complexes have been synthesized and structurally characterized using single-crystal X-ray diffraction, including Na4[Th6O2(C10O7N2H14)6]·20.5H2O (Th6hedta), [Th(C9O6NH12)(H2O)(NO3)]·1.5H2O (Th(ntp)), [Th2Al8(OH)14(H2O)12(C6O5NH8)4](NO3)6·17.5H2O (Th2Al8heidi), (C4N2H12) [Th2Fe2(OH)2(H2O)2(C6O7H4)2(C6O7H5)2]·6H2O (Th2Fe2cit), (C4N2H12) [ThFe2O(H2O)3(C11O9N2H13)2]·6H2O (ThFe2dhpta). Additional chemical characterization by infrared spectroscopy and thermogravimetric analysis provides information on the chelation by the organic ligands and thermal stability. These molecular complexes can be utilized to understand aqueous speciation in mixed-metal solutions and also provide information regarding contaminant adsorption on iron(III) and aluminum(III) oxide surfaces.
Details
- Title: Subtitle
- Interplay of Condensation and Chelation in Binary and Ternary Th(IV) Systems
- Creators
- Daniel K UnruhJoshua de GrootMelissa FairleyAnna LiboSamuel MillerTori Z Forbes
- Resource Type
- Journal article
- Publication Details
- Inorganic chemistry, Vol.54(4), pp.1395-1404
- Publisher
- American Chemical Society
- DOI
- 10.1021/ic502313y
- PMID
- 25587792
- ISSN
- 0020-1669
- eISSN
- 1520-510X
- Grant note
- DOI: 10.13039/100011126, name: Center for Global and Regional Environmental Research, University of Iowa
- Language
- English
- Date published
- 02/16/2015
- Academic Unit
- Civil and Environmental Engineering; Core Research Facilities; Chemistry
- Record Identifier
- 9983985705202771
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