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The first and second ionization energies of the element 119: absolute hardness and Mulliken electronegativity for the cation 119+ based on an empirical equation involving absolute hardness

Robson Fernandes de Farias 1
Robson Fernandes de Farias
10.1016/j.mencom.2018.05.026
Published 2018-04-27
Communication , Volume 28, Issue 3, 306-307
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de Farias R. F. The first and second ionization energies of the element 119: absolute hardness and Mulliken electronegativity for the cation 119+ based on an empirical equation involving absolute hardness // Mendeleev Communications. 2018. Vol. 28. No. 3. pp. 306-307.
GOST all authors (up to 50) Copy
de Farias R. F. The first and second ionization energies of the element 119: absolute hardness and Mulliken electronegativity for the cation 119+ based on an empirical equation involving absolute hardness // Mendeleev Communications. 2018. Vol. 28. No. 3. pp. 306-307.
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TY - JOUR
DO - 10.1016/j.mencom.2018.05.026
UR - https://mendcomm.colab.ws/publications/10.1016/j.mencom.2018.05.026
TI - The first and second ionization energies of the element 119: absolute hardness and Mulliken electronegativity for the cation 119+ based on an empirical equation involving absolute hardness
T2 - Mendeleev Communications
AU - de Farias, Robson Fernandes
PY - 2018
DA - 2018/04/27
PB - Mendeleev Communications
SP - 306-307
IS - 3
VL - 28
ER -
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@article{2018_de Farias,
author = {Robson Fernandes de Farias},
title = {The first and second ionization energies of the element 119: absolute hardness and Mulliken electronegativity for the cation 119+ based on an empirical equation involving absolute hardness},
journal = {Mendeleev Communications},
year = {2018},
volume = {28},
publisher = {Mendeleev Communications},
month = {Apr},
url = {https://mendcomm.colab.ws/publications/10.1016/j.mencom.2018.05.026},
number = {3},
pages = {306--307},
doi = {10.1016/j.mencom.2018.05.026}
}
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de Farias, Robson Fernandes. “The first and second ionization energies of the element 119: absolute hardness and Mulliken electronegativity for the cation 119+ based on an empirical equation involving absolute hardness.” Mendeleev Communications, vol. 28, no. 3, Apr. 2018, pp. 306-307. https://mendcomm.colab.ws/publications/10.1016/j.mencom.2018.05.026.

Abstract

The following empirical equation was derived: UPOT=(−0.494r++122.392)(η++η−)−109.514η++1191.694kJmol−1, where r+ is the cation radius (pm), η+ is the absolute hardness of the cation, and η− is the absolute hardness of the anion. This equation in conjunction with Kapustinskii lattice energy values for element 119 halides was employed to calculate the first and second ionization energies of 4.04 and 20.72eV, respectively; for the monocation 119+, r+=202.2pm, η+=8.34 and η+=12.38. Furthermore, the second ionization energy for francium was calculated as 23.80eV.

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