Chemical investigation of hassium (element 108)

  title={Chemical investigation of hassium (element 108)},
  author={Christoph Emanuel D{\"u}llmann and Willy Br{\"u}chle and Rugard Dressler and Klaus Eberhardt and Bernd Eichler and Robert Eichler and Heinz Walter G{\"a}ggeler and T. Ginter and Florian Glaus and Kenneth E. Gregorich and Darleane C. Hoffman and Egon J{\"a}ger and Dieter T. Jost and U. W. Kirbach and D. M. Lee and Heino Nitsche and Joshua B. Patin and Valerija G. Pershina and Dave Piguet and Zhi Qin and Matthias Sch{\"a}del and B. Schausten and Erwin Schimpf and H. J. Sch{\"o}tt and S. Soverna and Ralf Sudowe and P. Th{\"o}rle and S. N. Timokhin and Norbert Trautmann and Andreas T{\"u}rler and Annett Vahle and G. Wirth and A. Yakushev and Peter M. Zielinski},
The periodic table provides a classification of the chemical properties of the elements. But for the heaviest elements, the transactinides, this role of the periodic table reaches its limits because increasingly strong relativistic effects on the valence electron shells can induce deviations from known trends in chemical properties. In the case of the first two transactinides, elements 104 and 105, relativistic effects do indeed influence their chemical properties, whereas elements 106 and 107… 
Indication for a volatile element 114
Abstract Recently, the chemical investigation of element 112 revealed a highly volatile, noble metallic behaviour, as expected for the last group 12 member of the periodic table. The observed
Superheavy element chemistry at GSI – status and perspectives
Abstract.Superheavy elements have been synthesized and chemically characterized one-atom-at-a-time up to element 108. Presently, the quest for identification and investigation of element 112 is one
Gas-Phase Chemistry of Superheavy Elements
This chapter summarizes gas chemical studies of transactinides using two approaches, gas thermochromatography and isothermal gas chromatography. Both techniques enabled successful chemical studies of
Aqueous-phase chemistry of the transactinides
Abstract The experimental techniques developed to perform rapid chemical separations of the heaviest elements in the aqueous phase are presented. In general, these include transport of the nuclear
Superheavy element flerovium (element 114) is a volatile metal.
A gas-solid chromatography study of the adsorption of Fl on a Au surface points to the formation of a metal-metal bond of Fl with Au, the least reactive element in the group, but still a metal.
de Chemistry of the superheavy elements
The quest for superheavy elements (SHEs) is driven by the desire to find and explore one of the extreme limits of existence of matter. These elements exist solely due to their nuclear shell
Attempts to chemically investigate element 112
Summary Two experiments aiming at the chemical investigation of element 112 produced in the heavy ion induced nuclear fusion reaction of 48Ca with 238U were performed at the Gesellschaft für
Predictions of adsorption behaviour of the heaviest elements in a comparative study from the electronic structure calculations
Summary Thermodynamics of adsorption of gaseous species on the surface of a gas chromatography column is considered using the knowledge of the electronic structure of the adsorbate. Relevant
Co-precipitation behaviour of single atoms of rutherfordium in basic solutions
A co-precipitation method with samarium has now been developed that suggests rutherfordium would form hydroxide precipitates—but not ammine ones—if it were possible to perform these experiments on macroscopic quantities.
Chemistry of superheavy elements.
These results place the architecture of the far-end of the Periodic Table on the test bench and probe the increasingly strong relativistic effects that influence the chemical properties there.


Chemical characterization of bohrium (element 107)
The chemical separation and characterization of six atoms of element 107 (bohrium, Bh), in the form of its oxychloride, is reported, finding that this compound is less volatile than the oxychlorides of the lighter elements of group VII, thus confirming relativistic calculations that predict the behaviour of bohrium to coincide with that expected on the basis of its position in the periodic table.
The identification of element 108
The aim was to produce element 108 by complete fusion of S'Fe with 2~ followed by evapora- tion of one neutron which leads to the odd mass isotope '6sI08', and to allow an unambiguous identi- fication of the new element in case of its a-decay, the unknown daughter isotope 2~I06 was investigated.
The electronic structure and properties of group 8 oxides MO4, where M=Ru, Os, and Element 108, Hs
Fully relativistic density functional calculations have been performed for group 8 tetroxides MO4, where M=Ru, Os, and element 108, Hs. The electronic structure analysis has shown HsO4 to be very
Thermochromatographic Method of Separation of Chemical Elements in Nuclear and Radiochemistry
The state of the art in the title field including vacuum thermochromatography and sublimatography is discussed. Thermochromatography has proven to be effective in studying properties of the
Prospects for the discovery of new elements
Today we know 111 chemical elements. The heaviest among the 19 man-made transuranium elements are synthesized in fusion reactions between heavy-ion projectiles and lead/bismuth-or actinide-targets.
Production and decay of269110
In an experiment carried out to identify element 110, we have observed anα-decay chain, that can be unambiguously assigned to269110. In a scries of preexperiments the excitation functions of the
On the decay properties of 269Hs and indications for the new nuclide 270Hs
Abstract.In bombardments of 248Cm with 143.7-146.8 MeV 26Mg ions the nuclides 269Hs and presumably 270Hs were produced. After chemical isolation, Hs atoms were identified by observing genetically
On the Stability and Volatility of Group 8 Tetroxides, MO4 (M = Ruthenium, Osmium, and Hassium (Z = 108))
Recently, an experiment to chemically characterize for the first time a compound of the transactinide element hassium (Hs, Z = 108) has been performed. On the basis of the assumption that Hs will b...