Structure and spectroscopy of hydrated neptunyl(VI) nitrate complexes
Patric Lindqvist-Reis1, Christos Apostolidis, Olaf Walter
1Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany. patric.lindqvist@kit.edu.
Dalton Transactions (Cambridge, England : 2003)
|September 18, 2013
Abstract:
Complexation between hexavalent neptunium and nitrate was studied in aqueous nitric acid solution using optical absorption, vibrational and X-ray absorption spectroscopies. Distributions of aqueous [NpO2](2+), [NpO2(NO3)](+) and [NpO2(NO3)2] species were obtained as a function of nitric acid concentration between 0 and 14 M. The crystal structure of [NpO2(NO3)2(H2O)2]·H2O was determined.
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