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Pentavalent Uranyl Complexes : ウィキペディア英語版
Pentavalent Uranyl Complexes

UV is the +5 oxidation state of uranium which is found in the form of ()1+. This species is known as pentavalent uranyl cation and has a low stability due to the disproportionation into tetravalent and hexavalent uranium species.

The oxidation states of uranium compounds vary from +2 to +6 (UII - UVI). Out of all these oxidation states +6 is the most common one and it is found in the form of ()2+ (uranyl dication). This hexavalent form of uranium species is known to be the most thermodynamically stable species and it is soluble in water. Even though the uranium chemistry is well explored pentavalent uranyl chemistry is under developed due to the low stability of these compounds. There are two naturally occurring pentavalent uranium-containing minerals reported.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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