Further insights into intermediate- and mixed-valency in neptunium oxoanion compounds: structure and absorption spectroscopy of K2[(NpO2)3B10O16(OH)2(NO3)2]

Shuao Wang; Evgeny V Alekseev; Wulf Depmeier; Thomas E Albrecht-Schmitt

doi:10.1039/c002588g

Further insights into intermediate- and mixed-valency in neptunium oxoanion compounds: structure and absorption spectroscopy of K2[(NpO2)3B10O16(OH)2(NO3)2]

Chem Commun (Camb). 2010 Jun 14;46(22):3955-7. doi: 10.1039/c002588g. Epub 2010 Apr 30.

Authors

Shuao Wang¹, Evgeny V Alekseev, Wulf Depmeier, Thomas E Albrecht-Schmitt

Affiliation

¹ Department of Civil Engineering and Geological Sciences , 156 Fitzpatrick Hall, University of Notre Dame, Notre Dame, Indiana 46556, USA.

PMID: 20436970
DOI: 10.1039/c002588g

Abstract

The reaction of Np(V) chloride with molten boric acid results in the disproportionation of Np(V) into Np(IV) and Np(VI), and the crystallization of K(2)[(NpO(2))(3)B(10)O(16)(OH)(2)(NO(3))(2)]. UV-vis-NIR spectroscopy demonstrates that in addition to the Np(VI) and Np(V) found in the crystal structure, Np(IV) is also present.