First ionization potential of the heaviest actinide lawrencium, element 103

Tetsuya K. Sato; Masato Asai; Anastasia Borschevsky; Thierry Stora; Nozomi Sato; Yusuke Kaneya; Kazuaki Tsukada; Christoph E. Düllmann; Klaus Eberhardt; Ephraim Eliav; Shinichi Ichikawa; Uzi Kaldor; Jens V. Kratz; Sunao Miyashita; Yuichiro Nagame; Kazuhiro Ooe; Akihiko Osa; Dennis Renisch; Jörg Runke; Matthias Schädel; Petra Thörle-Pospiech; Atsushi Toyoshima; Norbert Trautmann

doi:10.1051/epjconf/201613105001

First ionization potential of the heaviest actinide lawrencium, element 103

Tetsuya K. Sato^*, Masato Asai, Anastasia Borschevsky, Thierry Stora, Nozomi Sato, Yusuke Kaneya, Kazuaki Tsukada, Christoph E. Düllmann, Klaus Eberhardt, Ephraim Eliav, Shinichi Ichikawa, Uzi Kaldor, Jens V. Kratz, Sunao Miyashita, Yuichiro Nagame, Kazuhiro Ooe, Akihiko Osa, Dennis Renisch, Jörg Runke, Matthias SchädelPetra Thörle-Pospiech, Atsushi Toyoshima, Norbert Trautmann

^*Corresponding author for this work

School of Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The first ionization potential (IP₁) of element 103, lawrencium (Lr), has been successfully determined for the first time by using a newly developed method based on a surface ionization process. The measured IP1 value is 4.963^0..08_0.07 eV. This value is the smallest among those of actinide elements and is in excellent agreement with the value of 4.963(15) eV predicted by state-of-the-art relativistic calculations also performed in this work. Our results strongly support that the Lr atom has an electronic configuration of [Rn]7s²5f ¹⁴7p¹_1/2, which is influenced by strong relativistic effects. The present work provides a reliable benchmark for theoretical calculations and also opens the way for studies on atomic properties of heavy elements with atomic number Z > 100. Moreover, the present achievement has triggered a controversy on the position of lutetium (Lu) and Lr in the Periodic Table of Elements.

Original language	English
Title of host publication	Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements
Editors	Dirk Rudolph
Publisher	EDP Sciences
ISBN (Electronic)	9782759890118
DOIs	https://doi.org/10.1051/epjconf/201613105001
State	Published - 1 Dec 2016
Event	2016 Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements - Fjalkinge, Sweden Duration: 29 May 2016 → 3 Jun 2016

Publication series

Name	EPJ Web of Conferences
Volume	131
ISSN (Print)	2101-6275
ISSN (Electronic)	2100-014X

Conference

Conference	2016 Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements
Country/Territory	Sweden
City	Fjalkinge
Period	29/05/16 → 3/06/16

Funding

Funders	Funder number
Japan Society for the Promotion of Science	26288028, 26390119

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10.1051/epjconf/201613105001

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Sato, T. K., Asai, M., Borschevsky, A., Stora, T., Sato, N., Kaneya, Y., Tsukada, K., Düllmann, C. E., Eberhardt, K., Eliav, E., Ichikawa, S., Kaldor, U., Kratz, J. V., Miyashita, S., Nagame, Y., Ooe, K., Osa, A., Renisch, D., Runke, J., ... Trautmann, N. (2016). First ionization potential of the heaviest actinide lawrencium, element 103. In D. Rudolph (Ed.), Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements Article 05001 (EPJ Web of Conferences; Vol. 131). EDP Sciences. https://doi.org/10.1051/epjconf/201613105001

@inproceedings{280e3fb35af0490fa2f8f29aab9facb8,

title = "First ionization potential of the heaviest actinide lawrencium, element 103",

abstract = "The first ionization potential (IP1) of element 103, lawrencium (Lr), has been successfully determined for the first time by using a newly developed method based on a surface ionization process. The measured IP1 value is 4.9630..080.07 eV. This value is the smallest among those of actinide elements and is in excellent agreement with the value of 4.963(15) eV predicted by state-of-the-art relativistic calculations also performed in this work. Our results strongly support that the Lr atom has an electronic configuration of [Rn]7s25f 147p11/2, which is influenced by strong relativistic effects. The present work provides a reliable benchmark for theoretical calculations and also opens the way for studies on atomic properties of heavy elements with atomic number Z > 100. Moreover, the present achievement has triggered a controversy on the position of lutetium (Lu) and Lr in the Periodic Table of Elements.",

author = "Sato, {Tetsuya K.} and Masato Asai and Anastasia Borschevsky and Thierry Stora and Nozomi Sato and Yusuke Kaneya and Kazuaki Tsukada and D{\"u}llmann, {Christoph E.} and Klaus Eberhardt and Ephraim Eliav and Shinichi Ichikawa and Uzi Kaldor and Kratz, {Jens V.} and Sunao Miyashita and Yuichiro Nagame and Kazuhiro Ooe and Akihiko Osa and Dennis Renisch and J{\"o}rg Runke and Matthias Sch{\"a}del and Petra Th{\"o}rle-Pospiech and Atsushi Toyoshima and Norbert Trautmann",

note = "Publisher Copyright: {\textcopyright} The Authors, published by EDP Sciences.; 2016 Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements ; Conference date: 29-05-2016 Through 03-06-2016",

year = "2016",

month = dec,

day = "1",

doi = "10.1051/epjconf/201613105001",

language = "אנגלית",

series = "EPJ Web of Conferences",

publisher = "EDP Sciences",

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booktitle = "Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements",

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Sato, TK, Asai, M, Borschevsky, A, Stora, T, Sato, N, Kaneya, Y, Tsukada, K, Düllmann, CE, Eberhardt, K, Eliav, E, Ichikawa, S, Kaldor, U, Kratz, JV, Miyashita, S, Nagame, Y, Ooe, K, Osa, A, Renisch, D, Runke, J, Schädel, M, Thörle-Pospiech, P, Toyoshima, A & Trautmann, N 2016, First ionization potential of the heaviest actinide lawrencium, element 103. in D Rudolph (ed.), Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements., 05001, EPJ Web of Conferences, vol. 131, EDP Sciences, 2016 Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements, Fjalkinge, Sweden, 29/05/16. https://doi.org/10.1051/epjconf/201613105001

First ionization potential of the heaviest actinide lawrencium, element 103. / Sato, Tetsuya K.; Asai, Masato; Borschevsky, Anastasia et al.
Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements. ed. / Dirk Rudolph. EDP Sciences, 2016. 05001 (EPJ Web of Conferences; Vol. 131).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - First ionization potential of the heaviest actinide lawrencium, element 103

AU - Sato, Tetsuya K.

AU - Asai, Masato

AU - Borschevsky, Anastasia

AU - Stora, Thierry

AU - Sato, Nozomi

AU - Kaneya, Yusuke

AU - Tsukada, Kazuaki

AU - Düllmann, Christoph E.

AU - Eberhardt, Klaus

AU - Eliav, Ephraim

AU - Ichikawa, Shinichi

AU - Kaldor, Uzi

AU - Kratz, Jens V.

AU - Miyashita, Sunao

AU - Nagame, Yuichiro

AU - Ooe, Kazuhiro

AU - Osa, Akihiko

AU - Renisch, Dennis

AU - Runke, Jörg

AU - Schädel, Matthias

AU - Thörle-Pospiech, Petra

AU - Toyoshima, Atsushi

AU - Trautmann, Norbert

PY - 2016/12/1

Y1 - 2016/12/1

N2 - The first ionization potential (IP1) of element 103, lawrencium (Lr), has been successfully determined for the first time by using a newly developed method based on a surface ionization process. The measured IP1 value is 4.9630..080.07 eV. This value is the smallest among those of actinide elements and is in excellent agreement with the value of 4.963(15) eV predicted by state-of-the-art relativistic calculations also performed in this work. Our results strongly support that the Lr atom has an electronic configuration of [Rn]7s25f 147p11/2, which is influenced by strong relativistic effects. The present work provides a reliable benchmark for theoretical calculations and also opens the way for studies on atomic properties of heavy elements with atomic number Z > 100. Moreover, the present achievement has triggered a controversy on the position of lutetium (Lu) and Lr in the Periodic Table of Elements.

AB - The first ionization potential (IP1) of element 103, lawrencium (Lr), has been successfully determined for the first time by using a newly developed method based on a surface ionization process. The measured IP1 value is 4.9630..080.07 eV. This value is the smallest among those of actinide elements and is in excellent agreement with the value of 4.963(15) eV predicted by state-of-the-art relativistic calculations also performed in this work. Our results strongly support that the Lr atom has an electronic configuration of [Rn]7s25f 147p11/2, which is influenced by strong relativistic effects. The present work provides a reliable benchmark for theoretical calculations and also opens the way for studies on atomic properties of heavy elements with atomic number Z > 100. Moreover, the present achievement has triggered a controversy on the position of lutetium (Lu) and Lr in the Periodic Table of Elements.

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T3 - EPJ Web of Conferences

BT - Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements

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PB - EDP Sciences

T2 - 2016 Nobel Symposium NS 160 - Chemistry and Physics of Heavy and Superheavy Elements

Y2 - 29 May 2016 through 3 June 2016

ER -

First ionization potential of the heaviest actinide lawrencium, element 103

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