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The nature of electronic states and chemical bonding in lithium and potassium carbonates

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Abstract

In the context of the density functional theory the calculation of electron energy and space distribution in (LixK1−x )2CO3 (x = 0, 0.5, 1) have been made employing the pseudopotential method in the basis of numerical pseudo-orbitals. The electron structure of alkali metal carbonates is shown to be essentially different from alkaline-earth ones, this being connected with the change in the charge state of both the anion as a whole and the atoms composing it. The mechanisms of chemical bond formation were investigated by the sublattice method and it was shown that its peculiarities were due to the presence of nonequivalent oxygen and cation sublattices. In Li2CO3, anion atoms are covalently bonded, while in LiKCO3 and K2CO3 the ion constituent presents.

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Authors and Affiliations

  1. Kemerovo State University, Russia

    Yu. N. Zhuravlev & I. A. Fedorov

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  1. Yu. N. Zhuravlev
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  2. I. A. Fedorov
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Original Russian Text Copyright © 2006 by Yu. N. Zhuravlev and I. A. Fedorov

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Translated from Zhurnal Strukturnoi Khimii, Vol. 47, No. 2, pp. 215–219, March–April, 2006.

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Zhuravlev, Y.N., Fedorov, I.A. The nature of electronic states and chemical bonding in lithium and potassium carbonates. J Struct Chem 47, 206–210 (2006). https://doi.org/10.1007/s10947-006-0288-6

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  • DOI: https://doi.org/10.1007/s10947-006-0288-6

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