Chemistry at the shore of The Island of SHE

 

R. Eichler1,2, F. Sh. Abdullin3, N. V. Aksenov3, Yu. V. Albin3, G. A. Bozhikov3, V. I. Chepigin3, R. Dressler1, S. N. Dmitriev3, H. W. Gäggeler1,2, V. A. Gorshkov3, R. A. Henderson4, M. G. Itkis3,  J. M. Kenneally4, V. Ya. Lebedev3, O. N. Malyshev3, K. J. Moody4, Yu. Ts. Oganessian3, O. V. Petrushkin3, A. N. Polyakov3, D. Piguet1, A. G. Popeko3, P. Rasmussen1, R. N. Sagaidak3, A. Serov1,2, I. V. Shirokovsky3, D. A. Shaughnessy4, A. M. Sukhov3, P. Steinegger1, M. A. Stoyer4, N. J. Stoyer4, A. I. Svirikhin3, E.E. Tereshatov3, Yu. S. Tsyganov3, I. Usoltsev1,2, V. K. Utyonkov3, , A. Voegele1, G. K. Vostokin3, M. Wegrzecki5, P. A. Wilk4, D. Wittwer1,2 and A. V. Yeremin3

 

1Labor für Radio- und Umweltchemie, Paul Scherrer Institut, CH-5232 Villigen, Switzerland

2Departement für Chemie und Biochemie, Universität Bern, CH-3012 Bern, Switzerland

3Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, 141980 Dubna, Russia.

4Lawrence Livermore National Laboratory, University of California, 94551 Livermore, USA,

5Insitute of Electron Technology, 02-668 Warsaw, Poland.

 

More than 30 new isotopes of Rf-Cn and elements 113-118 have been discovered in the last decade at the Flerov Laboratory of Nuclear Reactions, Dubna, Russia in 48Ca induced nuclear fusion reactions with actinides. Element 112 was recently given the name Copernicium (Cn).  Names for elements 114 and 116 will follow soon.  The physics experiments observed isotopes of transactinides with half-lives of some considerable fraction of a second up to several hours.  Naturally, chemistry is eager to investigate their chemical properties, especially of the superheavy elements with Z>110.  We present here experimental results obtained by the PSI-University of Bern-FLNR-LLNL-ITE collaboration* on the chemistry of the newest heavy transactinides – Cn, 113, and element 114.  The hunt for experimental evidence of unexpectedly strong relativistic effects in the electronic structure of the superheavy elements has begun.  Far reaching observations leading to suggestions for possible gas phase chemical experiments with transactinides 113-116 will be presented.

 

* PSI-University of Bern-FLNR-LLNL-ITE collaboration: