The oxidation state of an element influences its chemical behavior of reactivity and bonding. Finding unusual oxidation state of elements is a theme of eternal pursuit. As labeled by an alkali-earth metal, barium (Ba) invariably exhibits an oxidation state of +2 by a loss of two 6s valence electrons while its inner 5p closed shell is known to remain intact. Here, we show through the reaction with fluorine (F) at high pressure that Ba exhibits a hitherto unexpected high oxidation state greater than +2 in three pressure-stabilized F-rich compounds BaF<sub>3</sub>, BaF<sub>4</sub>, and BaF<sub>5</sub>, where Ba takes on the role of a 5p element by opening up its inert 5p shell. Interestingly enough, these pressure-stabilized Ba fluorides share...
We have conducted electronic-structure calculations for Am metal under pressure to investigate the b...
cited By 28International audienceWe present the results of a first-principles study on BaF2 in its s...
The luminescence from Eu2+ ions in MF2 (M = Ca, Sr, Ba) fluorides has been investigated under the pr...
The preparation of compounds with novel atomic oxidation states and emergent properties is of fundam...
Powder x-ray diffraction and Raman spectroscopy experiments, together with first-principles calculat...
The electronic structures of the earlier lanthanide and actinide elements are considered, and especi...
Fluorination is a proven method for challenging the limits of chemistry, both structurally and elect...
Chemical environments can be chosen which stabilize actinides and lanthanides in unusually high or l...
Since the synthesis of the first krypton compound, several other Kr-bearing connections have been ob...
The high-pressure structural behavior of californium has been studied experimentally and theoretical...
The luminescence of Sm2+ substituting for Sr2+ or Ba2+ has been studied in SrFBr, BaFBr, BaFI and Sr...
An important goal in chemistry is to prepare F-rich transition metal fluorides due to the high oxida...
The high-pressure structural behavior of californium has been studied experimentally and theoretical...
High pressure x-ray diffraction studies on inverse-perovskite BaLiF3 show that this compound is stru...
An important goal in chemistry is to prepare compounds with unusual oxidation states showing excitin...
We have conducted electronic-structure calculations for Am metal under pressure to investigate the b...
cited By 28International audienceWe present the results of a first-principles study on BaF2 in its s...
The luminescence from Eu2+ ions in MF2 (M = Ca, Sr, Ba) fluorides has been investigated under the pr...
The preparation of compounds with novel atomic oxidation states and emergent properties is of fundam...
Powder x-ray diffraction and Raman spectroscopy experiments, together with first-principles calculat...
The electronic structures of the earlier lanthanide and actinide elements are considered, and especi...
Fluorination is a proven method for challenging the limits of chemistry, both structurally and elect...
Chemical environments can be chosen which stabilize actinides and lanthanides in unusually high or l...
Since the synthesis of the first krypton compound, several other Kr-bearing connections have been ob...
The high-pressure structural behavior of californium has been studied experimentally and theoretical...
The luminescence of Sm2+ substituting for Sr2+ or Ba2+ has been studied in SrFBr, BaFBr, BaFI and Sr...
An important goal in chemistry is to prepare F-rich transition metal fluorides due to the high oxida...
The high-pressure structural behavior of californium has been studied experimentally and theoretical...
High pressure x-ray diffraction studies on inverse-perovskite BaLiF3 show that this compound is stru...
An important goal in chemistry is to prepare compounds with unusual oxidation states showing excitin...
We have conducted electronic-structure calculations for Am metal under pressure to investigate the b...
cited By 28International audienceWe present the results of a first-principles study on BaF2 in its s...
The luminescence from Eu2+ ions in MF2 (M = Ca, Sr, Ba) fluorides has been investigated under the pr...