One-dimensional uranium(VI) coordination polymers with pyridinecarboxylate ligands

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dc.contributor.authorShepherd, NDen_AU
dc.contributor.authorZhang, YJen_AU
dc.contributor.authorKaratchevtseva, Ien_AU
dc.contributor.authorPrice, JRen_AU
dc.contributor.authorKong, Len_AU
dc.contributor.authorScales, Nen_AU
dc.contributor.authorLumpkin, GRen_AU
dc.date.accessioned2020-03-26T04:55:38Zen_AU
dc.date.available2020-03-26T04:55:38Zen_AU
dc.date.issued2016-07-27en_AU
dc.date.statistics2020-03-20en_AU
dc.description.abstractA method to produce picolinate ligand in situ under hydrothermal conditions has been used to synthesize four uranyl hydroxyl, oxo- and oxohydroxyl picolinato complexes. (UO2)(OH)(Pic) (1) (HPic = picolinic acid) contains 7-fold coordinated uranyl hydroxyl dimers linked through μ2-bridging Pic ligands forming a one-dimensional (1D) polymer. (NH4)[(UO2)3(O)2(OH)(Pic)2] (2) consists of 7-fold coordinated uranyl oxohydroxyl trinuclear units linked through both μ2- and μ3-Pic ligands forming a 1D polymer. (NH4)[(UO2)2(O)2(Pic)] (3) is constructed with 7-fold coordinated uranyl oxo-dinuclear units linked through oxo- and μ3-Pic ligands forming a 1D polymer. (NH4)[(UO2)4(O)2(OH)2(Pic)2(INT)]·H2O (4) (HINT = isonicotinic acid) is made of 7-fold coordinated uranyl oxohydroxyl tetranuclear units linked through both Pic and INT ligands forming a 1D polymer. All four polymers are thermal robust to 350 °C. Raman spectroscopy confirmed the presence of uranyl ion and Pic ligand. In addition, red enhanced fluorescence emissions have been observed for both 1 and 4. The synthesis method, with the advantage of controlling uranyl hydrolysis and generating ligand in situ, provides a more reliable way to make new coordination polymers of carboxylate ligands with various uranyl hydrolysis species. © 2016 Elsevier Ltd.en_AU
dc.identifier.citationShepherd, N. D., Zhang, Y., Karatchevtseva, I., Price, J. R., Kong, L., Scales, N., & Lumpkin, G. R. (2016). One-dimensional uranium (VI) coordination polymers with pyridinecarboxylate ligands. Polyhedron, 113, 88-95. doi:10.1016/j.poly.2016.04.028en_AU
dc.identifier.govdoc9017en_AU
dc.identifier.issn0277-5387en_AU
dc.identifier.journaltitlePolyhedronen_AU
dc.identifier.pagination88-95en_AU
dc.identifier.urihttps://doi.org/10.1016/j.poly.2016.04.028en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9256en_AU
dc.identifier.volume113en_AU
dc.language.isoenen_AU
dc.publisherElsevier B.V.en_AU
dc.subjectUraniumen_AU
dc.subjectPolymersen_AU
dc.subjectLigandsen_AU
dc.subjectPicolinic aciden_AU
dc.subjectRaman spectroscopyen_AU
dc.subjectIonsen_AU
dc.titleOne-dimensional uranium(VI) coordination polymers with pyridinecarboxylate ligandsen_AU
dc.typeJournal Articleen_AU
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