Abstract
The variation of the An–Cl bond distance in ground-state actinide trichloride (AnCl3) molecules has been studied by density functional theory calculations using the B3LYP exchange–correlation functional in conjunction with small-core relativistic energy-consistent pseudopotentials for the actinides. The ground electronic states and the ground-state molecular properties of the trichlorides of heavy actinides (An = Bk–Lr) are reported in this paper the first time. Extending the present results with literature data on the light actinide trichlorides (AnCl3, An = Th–Cm), the trend in the bond distance has been evaluated for the whole actinide row. The contraction is well manifested in the major part of the actinide row (An = U–Fm). The deviations at the beginning (Th, Pa) and end of the row (Md, No) have been explained by minor differences in the bonding interactions.
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The Hungarian Scientific Research Foundation (OTKA No. 75972) is acknowledged for financial support.
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Selected properties of the excited states found in our test calculations switching occupied and virtual molecular orbitals.
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Kovács, A., Konings, R.J.M., Szieberth, D. et al. Study of the An–Cl bond contraction in actinide trichlorides. Struct Chem 25, 991–996 (2014). https://doi.org/10.1007/s11224-014-0406-6
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DOI: https://doi.org/10.1007/s11224-014-0406-6