Gas-phase coordination complexes of (UO22+)-O-VI, (NpO22+)-O-VI, and (PuO22+)-O-VI with dimethylformamide
Rutkowski, Philip X.
Gibson, John K.
Van Stipdonk, Michael J.
MetadataShow full item record
Rutkowski, Philip X.; Rios, Daniel; Gibson, John K. and Michael J., Van Stipdonk. 2011. Gas-phase coordination complexes of (UO22+)-O-VI, (NpO22+)-O-VI, and (PuO22+)-O-VI with dimethylformamide. Journal of the American Society for Mass Spectrometry, 22 (11):2042-2048.
Electrospray ionization of actinyl perchlorate solutions in H2O with 5% by volume of dimethylformamide (DMF) produced the isolatable gas-phase complexes, [An(VI)O(2)(DMF)(3)(H2O)](2+) and [An(VI)O(2)(DMF)(4)](2+), where An = U, Np, and Pu. Collision-induced dissociation confirmed the composition of the dipositive coordination complexes, and produced doubly-and singly-charged fragment ions. The fragmentation products reveal differences in underlying chemistries of uranyl, neptunyl, and plutonyl, including the lower stability of Np(VI) and Pu(VI) compared with U(VI).
Click on the DOI link below to access the article (may not be free).