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On the Structure an...
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Persson, IngmarSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för kemi,Department of Chemistry
(author)
On the Structure and Volumetric Properties of Solvated Lanthanoid(III) Ions in Amide Solutions
- Article/chapterEnglish2013
Publisher, publication year, extent ...
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2013-07-05
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American Chemical Society (ACS),2013
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American Chemical Society,2024
Numbers
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LIBRIS-ID:oai:slubar.slu.se:44430
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https://res.slu.se/id/publ/44430URI
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https://doi.org/10.1021/jp310111jDOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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The coordination chemistry and the volumetric properties of three representative lanthanoid(III) ions-lanthanum(III), gadolinium(III), and lutetium(III)-have been studied in three amide solvents with gradually increasing spatial demand upon coordination: N,N-dimethylformamide (dmf) < N,N-dimethylacetamide (dma) < N,N-dimethylpropionamide (dmp). Large angle X-ray scattering (LAXS) and EXAFS have been used to determine the structure of the solvated lanthanoid(III) ions in solution, further supplemented with a crystallographic study on octakis(N,N-dimethylacetamide) lanthanum(III) triflate, [La(dma)8](CF3SO3)3. The selection of ions and solvents allows an estimate of the steric congestion effects on the resulting coordination number, CN, ranging from nine for lanthanum(III) ions in dmf to seven for the smaller lutetium(III) ion in space-demanding dma. The standard partial molar volumes of the solvated lanthanoid(III) ions in water and dmf are reflected in the CNs, as these solvent molecules are small enough to not interfere with each other upon coordination. However, the larger and more space-demanding dma displays a different pattern with an almost constant standard partial molar volume and a decreasing CN, counterbalancing the difference in ionic radius of the lanthanoid(III) ion.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Lundberg, DanielSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för Kemi och Bioteknologi,The Department of Chemistry and Biotechnology(Swepub:slu)47560
(author)
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Sveriges lantbruksuniversitetInstitutionen för kemi
(creator_code:org_t)
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Sveriges lantbruksuniversitet
Related titles
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In:Journal of Physical Chemistry B: American Chemical Society (ACS)117, s. 8502-85111520-61061520-5207
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