Pentavalent Lanthanide Compounds: Formation and Characterization of Praseodymium(V) Oxides.
Angew Chem Int Ed Engl
; 55(24): 6896-900, 2016 06 06.
Article
en En
| MEDLINE
| ID: mdl-27100273
The chemistry of lanthanides (Ln=La-Lu) is dominated by the low-valent +3 or +2 oxidation state because of the chemical inertness of the valence 4f electrons. The highest known oxidation state of the whole lanthanide series is +4 for Ce, Pr, Nd, Tb, and Dy. We report the formation of the lanthanide oxide species PrO4 and PrO2 (+) complexes in the gas phase and in a solid noble-gas matrix. Combined infrared spectroscopic and advanced quantum chemistry studies show that these species have the unprecedented Pr(V) oxidation state, thus demonstrating that the pentavalent state is viable for lanthanide elements in a suitable coordination environment.
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MEDLINE
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En
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Angew Chem Int Ed Engl
Año:
2016
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Article
País de afiliación:
China