NDLI: Measurement of the first ionization potential of astatine by laser ionization spectroscopy

Content Provider	PubMed Central
Author	Rothe, S. Andreyev, A. N. Antalic, S. Borschevsky, A. Capponi, L. Cocolios, T. E. Witte, H. De Eliav, E. Fedorov, D. V. Fedosseev, V. N. Fink, D. A. Fritzsche, S. Ghys, L. Huyse, M. Imai, N. Kaldor, U. Kudryavtsev, Yuri Köster, U. Lane, J. F. W. Lassen, J. Liberati, V. Lynch, K. M. Marsh, B. A. Nishio, K. Pauwels, D. Pershina, V. Popescu, L. Procter, T. J. Radulov, D. Raeder, S. Rajabali, M. M. Rapisarda, E. Rossel, R. E. Sandhu, K. Seliverstov, M. D. Sjödin, A. M. Bergh, P. Van Den Van, Duppen P. Venhart, M. Wakabayashi, Y. Wendt, K. D. A.
Copyright Year	2013
Abstract	The radioactive element astatine exists only in trace amounts in nature. Its properties can therefore only be explored by study of the minute quantities of artificially produced isotopes or by performing theoretical calculations. One of the most important properties influencing the chemical behaviour is the energy required to remove one electron from the valence shell, referred to as the ionization potential. Here we use laser spectroscopy to probe the optical spectrum of astatine near the ionization threshold. The observed series of Rydberg states enabled the first determination of the ionization potential of the astatine atom, 9.31751(8) eV. New ab initio calculations are performed to support the experimental result. The measured value serves as a benchmark for quantum chemistry calculations of the properties of astatine as well as for the theoretical prediction of the ionization potential of superheavy element 117, the heaviest homologue of astatine.
Related Links	http://dx.doi.org/10.1038/ncomms2819
Starting Page	1835
File Format	PDF
ISSN	20411723
e-ISSN	20411723
Journal	Nature Communications
Volume Number	4
Language	English
Publisher	Nature Pub. Group
Publisher Date	2013-05-14
Access Restriction	Open
Rights Holder	Nature Pub. Group
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Chemistry Physics and Astronomy Biochemistry, Genetics and Molecular Biology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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