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Your search keyword '"Pershina, Valeria"' showing total 2 results
Start Over Author "Pershina, Valeria" Topic radioactive substances
2 results on '"Pershina, Valeria"'

1. Theoretical chemistry of superheavy elements: Support for experiment.

Author

Pershina, Valeria

Subjects
*PHYSICAL & theoretical chemistry, *CHEMISTRY, *SUPERHEAVY elements, *HEAVY elements, *RADIOACTIVE substances
Abstract

Spectacular developments in the relativistic quantum theory and computational algorithms in the last few decades allowed for accurate calculations of properties of the superheavy elements (SHE) and their compounds. Often conducted in a close link to the experimental research, these investigations helped predict and interpret an outcome of sophisticated and expensive experiments with single atoms and to reveal the magnitude and importance of relativistic effects. [ABSTRACT FROM AUTHOR]

Published
2016
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2. Electron affinity of element 114, with comparison to Sn and Pb

Author

Borschevsky, Anastasia, Pershina, Valeria, Eliav, Ephraim, and Kaldor, Uzi

Subjects
*CHEMICAL affinity, *ELECTRONS, *RADIOACTIVE substances, *TIN, *LEAD, *NUMERICAL analysis, *HAMILTONIAN systems, *CLUSTER analysis (Statistics)
Abstract

Abstract: The electron affinity (EA) of element 114 is calculated by the mixed sector intermediate Hamiltonian coupled cluster method, using large basis sets and model spaces. Similar calculations reproduce the EA of the lighter homologues Sn and Pb within 5%. This good agreement lends credence to the result obtained for element 114, predicting that the superheavy element will have no electron affinity and will not bind an extra electron. Trends in group 14 and the relativistic destabilization of the E114 orbital support this conclusion. [Copyright &y& Elsevier]

Published
2009
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