The IUPAC/IUPAP Joint Working Party (JWP) on the priority of claims to the discovery of new elements has reviewed the relevant literature pertaining to several claims. In accordance with the criteria for the discovery of elements previously established by the 1992 IUPAC/IUPAP Transfermium Working Group (TWG), and reiterated by the 1999 and 2003 IUPAC/IUPAP JWPs, it was determined that the 1996 and 2002 claims by the Hofmann et al. research collaborations for the discovery of the element with atomic number 112 at Gesellschaft für Schwerionenforschung (GSI) share in the fulfillment of those criteria. A synopsis of Z = 112 experiments and related efforts is presented. A subsequent report will address identification of higher-Z elements including those of odd atomic number.

# Pure and Applied Chemistry

### The Scientific Journal of IUPAC

Ed. by Burrows, Hugh / Stohner, Jürgen

IMPACT FACTOR 2017: 5.294

CiteScore 2017: 3.42

SCImago Journal Rank (SJR) 2017: 1.212

Source Normalized Impact per Paper (SNIP) 2017: 1.546

- Online
- ISSN
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# Discovery of the element with atomic number 112 (IUPAC Technical Report)

#### Free Access

Keywords: discovery of element 112; doubly closed shell; heavy elements; island of stability; new elements; nucleosynthesis; periodic table; transactinides; transactinoids; transfermium

Project Year: 2006, Project Code: 2006-046-1-200

## References

- 1.
, A. H. Wapstra. Pure Appl. Chem. 63, 879 (1991) and also as ref. [2].CrossrefGoogle Scholar

- 2.
, R. C. Barber, N. N. Greenwood, A. Z. Hrynkiewics, Y. P. Jeannin, M. Lefort, M. Sakai, I. Uleuhla, A. H. Wapstra, D. H. Wilkinson. Prog. Part. Nucl. Phys. 29, 453 (1992).CrossrefGoogle Scholar

- 3.
, P. J. Karol, H. Nakahara, B. W. Petley, E. Vogt. Pure Appl. Chem. 73, 959 (2001).CrossrefGoogle Scholar

- 4.
, P. J. Karol, H. Nakahara, B. W. Petley, E. Vogt. Pure Appl. Chem. 75, 1601 (2003).CrossrefGoogle Scholar

- 5.
S. Hofmann, V. Ninov, F. P. Hessberger, P. Armbruster, H. Folger, G. Munzenberg, H. J. Schott, A. G. Popeko, A. V. Yeremin, S. Saro, R. Janik, M. Leino. Z. Phys. A 354, 229 (1996).Google Scholar

- 6.
, S. Hofmann, F. P. Hessberger, D. Ackermann, G. Munzenberg, S. Antalic, P. Cagarda, B. Kindler, J. Kojouharova, M. Leino, B. Lommel, R. Mann, A. G. Popeko, S. Reshitko, S. Saro, J. Uusitalo, A. V. Yeremin. Eur. Phys. J. A 14, 147 (2002).CrossrefGoogle Scholar

- 7.
, (a) Ch. E. Dullmann, A. Turler. Phys. Rev. C 77, 064320 (2008);CrossrefGoogle Scholar

- 7.
, (b) Ch. E. Dullmann, A. Turler. erratum Phys. Rev. C 78, 029901 (2008).CrossrefGoogle Scholar

- 8.
, Y. A. Lazarev, Y. V. Lobanov, Y. T. Oganessian, V. K. Utyonkov, F. S. Abdullin, A. N. Polyakov, J. Rigol, I. V. Shirokovsky, Y. S. Tsyganov, S. Iliev, V. G. Subbotin, A. M. Sukhov, G. V. Buklanov, B. N. Gikal, V. B. Kutner, A. N. Mezentsev K. Subotic, J. F. Wild, R. W. Lougheed, K. J. Moody. Phys. Rev. C 54, 620 (1996).CrossrefGoogle Scholar

- 9.
, Ch. E. Dullmann, W. Bruchle, R. Dressler, K. Eberhardt, B. Eichler, R. Eichler, H. W. Gaggeler, T. N. Ginter, F. Glaus, K. E. Gregorich, D. C. Hoffman, E. Jager, D. T. Jost, U. W. Kirbach, D. M. Lee, H. Nitsche, J. B. Patin, V. Pershina, D. Piguet, Z. Qin, M. Schadel, B. Schausten, E. Schimpf, H.-J. Schott, S. Soverna, R. Sudowe, P. Thorle, S. N. Timohkin, N. Trautmann, A. Turler, A. Vahle, G. Wirth, A. B. Yakushev, P. M. Zielinski. Nature 418, 859 (2002).CrossrefGoogle Scholar

- 10.
, Ch. E. Dullmann, R. Dressler, H. W. Gaggeler, F. Glaus, D. T. Jost, D. Piguet, S. Soverna, A. Turler, W. Bruchle, R. Eichler, E. Jager, V. Pershina, M. Schadel, B. Schausten, E. Schimpf, H.-J. Schott, G. Wirth, K. Eberhardt, P. Thorle, N. Trautmann, T. N. Ginter, K. E. Gregorich, D. C. Hoffman, U. W. Kirbach, D. M. Lee, H. Nitsche, J. B. Patin, R. Sudowe, P. M. Zielinski, S. N. Timohkin, A. B. Yakushev, A. Vahle, Z. Qin. Czech. J. Phys. 53, A291 (2003).CrossrefGoogle Scholar

- 11.
, A. Turler, Ch. E. Dullmann, H. W. Gaggeler, U. W. Kirbach, A. B. Yakushev, M. Schadel, W. Bruchle, R. Dressler, K. Eberhardt, B. Eichler, R. Eichler, T. N. Ginter, F. Glaus, K. E. Gregorich, D. C. Hoffman, E. Jager, D. T. Jost, D. M. Lee, H. Nitsche, J. B. Patin, V. Pershina, D. Piguet, Z. Qin, B. Schausten, E. Schimpf, H.-J. Schott, S. Soverna, R. Sudowe, P. Thorle, S. N. Timohkin, N. Trautmann, A. Vahle, G. Wirth, P. M. Zielinski. Eur. Phys. J. A 17, 505 (2003).CrossrefGoogle Scholar

- 12.
, H. W. Gaggeler, W. Bruchle, Ch. E. Dullmann, R. Dressler, K. Eberhardt, B. Eichler, R. Eichler, C. M. Folden, T. N. Ginter, F. Glaus, K. E. Gregorich, F. Haenssler, D. C. Hoffman, E. Jager, D. T. Jost, U. W. Kirbach, J. V. Kratz, H. Nitsche, J. B. Patin, V. Pershina, D. Piguet, Z. Qin, U. Rieth, M. Schadel, B. Schausten, E. Schimpf, H.-J. Schott, S. Soverna, R. Sudowe, P. Thorle, N. Trautmann, A. Turler, A. Vahle, P. A. Wilk, G. Wirth, A. B. Yakushev, A. von Zweidorf. Proc. 8th Int. Conf. on Nucleus-Nucleus Collisions, Moscow, Russia (2003); Nucl. Phys. A734, 208 (2004).CrossrefGoogle Scholar

- 13.
, J. Dvorak, W. Bruchle, M. Chelnokov, R. Dressler, Ch. E. Dullmann, K. Eberhardt, V. Gorshkov, E. Jager, R. Krucken, A. Kuznetsov, Y. Nagame, F. Nebel, Z. Novackova, Z. Qin, M. Schadel, B. Schausten, E. Schimpf, A. Semchenkov, P. Thorle, A. Turler, M. Wegrzecki, B. Wierczinski, A. Yakushev, A. Yeremin. Phys. Rev. Lett. 97, 242501 (2006).CrossrefGoogle Scholar

- 14.
, J. Dvorak, W. Bruchle, M. Chelnokov, Ch. E. Dullmann, Z. Dvorakova, K. Eberhardt, E. Jager, R. Krucken, A. Kuznetsov, Y. Nagame, F. Nebel, K. Nishio, R. Perego, Z. Qin, M. Schadel, B. Schausten, E. Schimpf, R. Schuber, A. Semchenkov, P. Thorle, A. Turler, M. Wegrzecki, B. Wierczinski, A. Yakushev, A. Yeremin. Phys. Rev. Lett. 100, 132503 (2008).CrossrefGoogle Scholar

- 15.
, A. von Zweidorf, R. Angert, W. Bruchle, S. Burger, K. Eberhardt, R. Eichler, H. Hummrich, E. Jager, H.-O. Kling, J. V. Kratz, B. Kuczewski, G. Langrock, M. Mendel, U. Rieth, M. Schadel, B. Schausten, E. Schimpf, P. Thorle, N. Trautmann, K. Tsukada, N. Wiehl, G. Wirth. Radiochim. Acta 92, 855 (2004).CrossrefGoogle Scholar

- 16.
K. Morita, K. Morimoto, D. Kaji, T. Akiyama, S. Goto, H. Haba, E. Ideguchi, H. Koura, H. Kudo, T. Ohnishi, A. Ozawa, T. Suda, K. Sueki, H. Xu, T. Yamaguchi, A. Yoneda, A. Yoshida, Y.-L. Zhao. RIKEN Accel. Prog. Rep. 38, 69 (2005).Google Scholar

- 17.
K. Morita. Proc. of the International Symp. on Exotic Nuclei, EXON 2004, Peterhof, Russia, World Scientific, Singapore, 188 (2005).Google Scholar

- 18.
, K. Morita, K. Morimoto, D. Kaji, T. Akiyama, S. Goto, H. Haba, E. Ideguchi, K. Katori, H. Koura, H. Kudo, T. Ohnishi, A. Ozawa, T. Suda, K. Sueki, F. Tokanai, T. Yamaguchi, A. Yoneda, A. Yoshida, J. Phys. Soc. Jpn. 76, 043201 (2007).CrossrefGoogle Scholar

- 19.
, A. Marinov, S. Gelberg, D. Kolb, R. Brandt, A. Pape. Int. J. Mod. Phys. E 12, 661 (2003).CrossrefGoogle Scholar

- 20.
, A. Marinov, S. Gelberg, D. Kolb, R. Brandt, A. Pape. Phys. Atom. Nucl. 66, 1137 (2003)CrossrefGoogle Scholar

- 21.
R. Brandt. Kerntechnik 70,170 (2005).CrossrefGoogle Scholar

- 22.
D. Kolb, A. Marinov, G. W. A. Newton, R. Brandt. Kerntechnik 70, 167 (2005).CrossrefGoogle Scholar

- 23.
A. Marinov, I. Rodushkin, A. Pape, Y. Kashiv, L. Halicz, I. Segal, A. Pape, R. Gentry, H. W. Miller, D. Kolb, R. Brandt. arXiv: nucl-ex/0605008 (2006).Google Scholar

- 24.
A. Marinov, I. Rodushkin, A. Pape, Y. Kashiv, D. Kolb, R. Brandt, R. Gentry, H. W. Miller, L. Halicz, I. Segal. (unpublished, submitted to Phys. Rev. Lett. 2007).Google Scholar

- 25.
R. Brandt. Phys. Part. Nucl. 39, 259 (2008).Google Scholar

- 26.
, A. Marinov, I. Rodushkin, Y. Kashiv, L. Halicz, I. Segal, A. Pape, R. Gentry, H. Miller, D. Kolb, R. Brandt. Phys. Rev. C 76, 021303 (2007).CrossrefGoogle Scholar

- 27.
A. Marinov, I. Rodushkin, D. Kolb, A. Pape, Y. Kashiv, R. Brandt, R.V. Gentry, H. W. Miller. Third Int. Conf. on the Chem. and Phys. of the Transactinide Elements (TAN07), Davos, Switzerland, 65 (2007).Google Scholar

- 28.
, R. Eichler, N. V. Aksenov, A. V. Belozerov, G. A. Bozhikov, V. I. Chepigin, S. N. Dmitriev, R. Dressler, H. W. Gaggeler, V. A. Gorshkov, F. Haenssler, M. G. Itkis, A. Laube, V. Ya. Lebedev, O. N. Malyshev, Yu. Ts. Oganessian, O. V. Petrushkin, D. Piguet, P. Rasmussen, S. V. Shishkin, A. V. Shutov, A. I. Svirikhin, E. E. Tereshatov, G. K. Vostokin, M. Wegrzecki, A. V. Yeremin. Nature 447, 72 (3 May 2007).CrossrefGoogle Scholar

- 29.
, Yu. Ts. Oganessian, A. V. Yeremin, G. G. Gulbekian, S. L. Bogomolov, V. I. Chepigin, B. N. Gikal, V. A. Gorshkov, M. G. Itkis, A. P. Kabachenko, V. B. Kutner, A. Yu. Lavrentev, O. N. Malyshev, A. G. Popeko, J. Rohac, R. N. Sagaidak, S. Hofmann, G. Munzenberg, M. Veselsky, S. Saro, N. Iwasa, K. Morita. Eur. Phys. J. A 5, 63 (1999).CrossrefGoogle Scholar

- 30.
, W. Loveland, K. E. Gregorich, J. B. Patin, D. Peterson, C. Rouki, P. M. Zielinski, K. Aleklett. Phys. Rev. C 66, 044617-1 (2002).CrossrefGoogle Scholar

- 31.
, R. Eichler, W. Bruchle, R. Buda, S. Burger, R. Dressler, Ch. E. Dullmann, J. Dvorak, K. Eberhardt, B. Eichler, C. M. Folden III, H. W. Gaggeler, K. E. Gregorich, F. Haenssler, D. C. Hoffman, H. Hummrich, E. Jager, J. V. Kratz, B. Kuczewski, D. Liebe, D. Nayak, H. Nitsche, D. Piguet, Z. Qin, U. Rieth, M. Schadel, B. Schausten, E. Schimpf, A. Semchenkov, S. Soverna, R. Sudowe, N. Trautmann, P. Thorle, A. Turler, B. Wierczinski, N. Wiehl, P. A. Wilk, G. Wirth, A. B. Yakushev, A. von Zweidorf. Radiochim. Acta 94, 181 (2006).CrossrefGoogle Scholar

- 32.
, Yu. Ts. Oganessian, A. V. Yeremin, A. G. Popeko, S. L. Bogomolov, G. V. Buklanov, M. L. Chelnokov, V. I. Chepigin, B. N. Gikal, V. A. Gorshkov, G. G. Gulbekian, M. G. Itkis, A. P. Kabachenko, A. Yu. Lavrentev, O. N. Malyshev, J. Rohac, R. N. Sagaidak, S. Hofmann, S. Saro, G. Giardina, K. Morita. Nature 400, 242 (1999).CrossrefGoogle Scholar

- 33.
, Yu. Ts. Oganessian, V. K. Utyonkov, Yu. V. Lobanov, F. Sh. Abdullin, A. N. Polyakov, I. V. Shirokovsky, Yu. S. Tsyganov, G. G. Gulbekian, S. L. Bogomolov, B. N. Gikal, A. N. Mezentsev, S. Iliev, V. G. Subbotin, A. M. Sukhov, O. V. Ivanov, G. V. Buklanov, K. Subotic, M. G. Itkis, K. J. Moody, J. F. Wild, N. J. Stoyer, M. A. Stoyer, R. W. Lougheed. Phys. Rev. Lett. 83, 3154 (1999).CrossrefGoogle Scholar

- 34.
, A. B. Yakushev, I. Zvara, Yu. Ts. Oganessian, A. V. Belozerov, S. N. Dmitriev, B. Eichler, S. Hubener, E. A. Sokol, A. Turler, A. V. Yeremin, G. V. Buklanov, M. L. Chelnokov, V. I. Chepigin, V. A. Gorshkov, A. V. Gulyaev, V. Ya. Lebedev, O. N. Malyshev, A. G. Popeko, S. Soverna, Z. Szeglowski, S. N. Timokhin, S. P. Tretyakova, V. M. Vasko, M. G. Itkis. Radiochim. Acta 91, 433 (2003).CrossrefGoogle Scholar

- 35.
Yu. Ts. Oganessian, V. K. Utyonkov, Yu. V. Lobanov, F. Sh. Abdullin, A. N. Polyakov, I. V. Shirokovsky, Yu. S. Tsyganov, G. G. Gulbekian, S. L. Bogomolov, B. N. Gikal, A. N. Mezentsev, S. Iliev, V. G. Subbotin, A. M. Sukhov, O. V. Ivanov, G. V. Buklanov, K. Subotic, M. G. Itkis, K. J. Moody, J. F. Wild, N. J. Stoyer, M. A. Stoyer, R. W. Lougheed. Phys. Rev. C 62, 041604/1 (2000).Google Scholar

- 36.
, Yu. Ts. Oganessian, V. K. Utyonkov, Yu. V. Lobanov, F. Sh. Abdullin, A. N. Polyakov, I. V. Shirokovsky, Yu. S. Tsyganov, G. G. Gulbekian, S. L. Bogomolov, B. N. Gikal, A. N. Mezentsev, S. Iliev, V. G. Subbotin, A. M. Sukhov, O. V. Ivanov, G. V. Buklanov, K. Subotic, M. G. Itkis, K. J. Moody, J. F. Wild, N. J. Stoyer, M. A. Stoyer, R. W. Lougheed. Phys. Atom. Nucl. 63, 1679 (2000).CrossrefGoogle Scholar

- 37.
, Yu. Ts. Oganessian, V. K. Utyonkov, K. J. Moody. Phys. Atom. Nucl. 64, 1349 (2001).CrossrefGoogle Scholar

- 38.
Yu. Ts. Oganessian, V. K. Utyonkov, Yu. V. Lobanov, F. Sh. Abdullin, A. N. Polyakov, I. V. Shirokovsky, Yu. S. Tsyganov, G. G. Gulbekian, S. L. Bogomolov, B. N. Gikal, A. N. Mezentsev, S. Iliev, V. G. Subbotin, A. M. Sukhov, O. V. Ivanov, G. V. Buklanov, K. Subotic, M. G. Itkis, K. J. Moody, J. F. Wild, N. J. Stoyer, M. A. Stoyer, R. W. Lougheed, C. A. Laue, Ye. A. Karelin, A. N. Tatarinov. Phys. Rev. C 63, 011301/1 (2001).Google Scholar

- 39.
, Y. T. Oganessian, A. V. Belozerov, A. V. Yeremin, A. G. Popeko, O. N. Malyshev, A. V. Belozerov, G. V. Buklanov, L. Chelnokov, V. I. Chepigin, V. A. Gorshkov, S. Hofmann, M. G. Itkis, A. P. Kabachenko, B. Kindler, G. Munzenberg, R. N. Sagaidak, S. Saro, H.-J. Schott, B. Streicher, A. V. Shutov, A. I. Svirikhin, G. K. Vostokin. Eur. Phys. J. A 19, 3 (2004)CrossrefGoogle Scholar

- 40.
, Yu. Ts. Oganessian, V. K. Utyonkov, Yu. V. Lobanov, F. Sh. Abdullin, A. N. Polyakov, I. V. Shirokovsky, Yu. S. Tsyganov, G. G. Gulbekian, S. L. Bogomolov, B. N. Gikal, A. N. Mezentsev, S. Iliev, V. G. Subbotin, A. M. Sukhov, A. A. Voinov, G. V. Bogomolov, K. Subotic, V. I. Zagrebaev, M. G. Itkis, J. B. Patin, K. J. Moody, J. F. Wild, M. A. Stoyer, N. J. Stoyer, D. A. Shaughnessy, J. M. Kenneally, R. W. Lougheed. Phys. Rev. C 69 054607 (2004).CrossrefGoogle Scholar

- 41.
, Yu. Ts. Oganessian, V. K. Utyonkov, Yu. V. Lobanov, F. Sh. Abdullin, A. N. Polyakov, I. V. Shirokovsky, Yu. S. Tsyganov, G. G. Gulbekian, S. L. Bogomolov, B. N. Gikal, A. N. Mezentsev, S. Iliev, V. G. Subbotin, A. M. Sukhov, A. A. Voinov, G. V. Bogomolov, K. Subotic, V. I. Zagrebaev, M. G. Itkis, J. B. Patin, K. J. Moody, J. F. Wild, M. A. Stoyer, N. J. Stoyer, D. A. Shaughnessy, J. M. Kenneally, P. A. Wilk, R. W. Lougheed, R. I. Il'kaev, S. P. Vesnovskii. Phys. Rev. C 70, 064609 (2004).CrossrefGoogle Scholar

- 42.
, Yu. Ts. Oganessian, V. K. Utyonkov, Yu. V. Lobanov, F. Sh. Abdullin, A. N. Polyakov, R. N. Sagaidak, I. V. Shirokovsky, Yu. S. Tsyganov, A. A. Voinov, G. G. Gulbekian, S. L. Bogomolov, B. N. Gikal, A. N. Mezentsev, S. Iliev, V. G. Subbotin, A. M. Sukhov, K. Subotic, V. I. Zagrebaev, G. K. Vostokiin, M. G. Itkis, K. J. Moody, J. B. Patin, D. A. Shaughnessy, M. A. Stoyer, N. J. Stoyer, P. A. Wilk, J. M. Kenneally, J. H. Landrum, J. F. Wild, R. W. Lougheed. Phys. Rev. C 74, 044602 (2006).CrossrefGoogle Scholar

- 43.
, S. Hofmann, D. Ackermann, S. Antalic, H. G. Burkhard, V. F. Comas, R. Dressler, Z. Gan, S. Heinz, J. A. Heredia, F. P. Hessberger, J. Khuyagbaatar, B. Kindler, I. Kojouharov, P. Kuusiniemi, M. Leino, B. Lommel, R. Mann, G. Munzenberg, K. Nishio, A. G. Popeko, S. Saro, H. J. Schott, B. Streicher, B. Sulignano, J. Uusitalo, M. Venhart, A. V. Yeremin. Eur. Phys. J. A 32, 251 (2007).CrossrefGoogle Scholar

- 44.
, A. B. Yakushev, G. V. Bulkanov, M. L. Chelnokov, V. I. Chepigin, S. N. Dmitriev, V. A. Gorshkov, S. Hubener, V. Ya. Lebedev, O. N. Malyshev, Yu. Ts. Oganessian. Radiochim. Acta 89, 743 (2001).CrossrefGoogle Scholar

- 45.
, K. E. Gregorich, W. Loveland, D. Peterson, P. M. Zielinski, S. L. Nelson, Y. H. Chung, Ch. E. Dullmann, C. M. Folden III, K. Aleklett, R. Eichler, D. C. Hoffman, J. P. Omtvedt, G. K. Pang, J. M. Schwantes, S. Soverna, P. Sprunger, R. Sudowe, R. E. Wilson, H. Nitsche. Phys. Rev. C 72, 014605 (2005).CrossrefGoogle Scholar

## About the article

**Published Online**: 2009-05-29

**Published in Print**: 2009-05-19

**Citation Information: **Pure and Applied Chemistry, Volume 81, Issue 7, Pages 1331–1343, ISSN (Online) 1365-3075, ISSN (Print) 0033-4545, DOI: https://doi.org/10.1351/PAC-REP-08-03-05.

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