Optical Absorption, Stability and Structure of NpO_2~+ Complexes with Dicarboxylic Acids

摘要

Complexation of NpO_2~+ with oxalic acid (OX), 2,2'-oxydiacetic acid (ODA), 2,2'-iminodiacetic acid (IDA) and 2,2'-thiodiacetic acid (TDA), has been studied using spectrophotometry in 1 M NaClO_4. Both the position and the intensity of the absorption band of NpO_2~+ at 980 nm are affected by the formation of NpO_2~+/dicarboxylate complexes, providing useful information on the complexation strength, the coordination mode and the structure of the complexes.