Heavy and Super Heavy Elements Research

Session Organizers:
Andreas Türler, Heinz W. Gaeggeler, Paul Scherrer Institut, Switzerland

With the discovery of six new elements in the past decade an extraordinary expansion of the Periodic Table took place, so that now all elements of the 7th period have been synthesized. This success was possible by exploiting the concept of .warm. fusion using the available, neutron-rich actinide target materials and the tightly bound, doubly magic projectile 48Ca. Attempts to push beyond Z=118 using heavier projectiles have failed so far. Due to the discovery of relatively long-lived isotopes of copernicium (element 112) and flerovium (element 114) first chemical experiments have successfully been conducted, revealing the special chemical properties of these elements, which can be attributed to the influence of strong relativistic effects. Substantial progress has also been achieved in investigating the lighter transactinide elements, where new classes of tansactinide containing compounds have been synthesized. This session will cover the latest developments in heavy and superheavy element research (synthesis of new elements, X-ray identification, chemical properties) and identify new avenues of research in this field.

INVITED PAPERS

From Mendelevium to Flerovium - Probing Relativistic Effects in Heavy and Superheavy Element Chemistry Experiments
Matthias Schädel, Superheavy Element Chemistry Group, Japan Atomic Energy Agency, Japan

Synthesis, Crystal Structure And Spectroscopic Properties of [TcO2(Im)4]Br•2H2O
Alesya Maruk, A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Russia