Picomolar Traces of Americium(III) Introduce Drastic Changes in the Structural Chemistry of Terbium(III): A Break in the “Gadolinium Break”
- Author(s)
- Jan M. Welch, Danny Müller, Christian Knoll, Martin Wilkovitsch, Gerald Giester, Johannes Ofner, Bernhard Lendl, Peter Weinberger, Georg Steinhauser
- Abstract
The crystn. of terbium 5,5'-azobis[1H-tetrazol-1-ide] (ZT) in the presence of trace amts. (ca. 50 Bq, ca. 1.6 pmol) of americium results in 1) the accumulation of the americium tracer in the cryst. solid and 2) a material that adopts a different crystal structure to that formed in the absence of americium. Americium-doped [Tb(Am)(H2O)7ZT]2 ZT[n.8901]10 H2O is isostructural to light lanthanide (Ce-Gd) 5,5'-azobis[1H-tetrazol-1-ide] compds., rather than to the heavy lanthanide (Tb-Lu) 5,5'-azobis[1H-tetrazol-1-ide] (e.g., [Tb(H2O)8]2ZT3[n.8901]6 H2O) derivs. Traces of Am seem to force the Tb compd. into a structure normally preferred by the lighter lanthanides, despite a 108-fold Tb excess. The americium-doped material was studied by single-crystal X-ray diffraction, vibrational spectroscopy, radiochem. neutron activation anal., and scanning electron microcopy. In addn., the inclusion properties of terbium 5,5'-azobis[1H-tetrazol-1-ide] towards americium were quantified, and a model for the crystn. process is proposed.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- Gottfried Wilhelm Leibniz Universität Hannover, Technische Universität Wien
- Journal
- Angewandte Chemie (International Edition)
- Volume
- 56
- Pages
- 13264–13269
- No. of pages
- 6
- ISSN
- 1433-7851
- DOI
- https://doi.org/10.1002/anie.201703971
- Publication date
- 10-2017
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104011 Materials chemistry, 105113 Crystallography, 104020 Radiochemistry
- Keywords
- ASJC Scopus subject areas
- General Chemistry, Catalysis
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/750afff9-03b1-4366-8010-321afaf4fc71