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Multinuclear NMR Study of the Pressure Dependence for Carbonate Exchange in the UO 2 (CO 3 ) 3 4− (aq) Ion
Author(s) -
Johnson Rene L.,
Harley Stephen J.,
Ohlin C. André,
Panasci Adele F.,
Casey William H.
Publication year - 2011
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201100654
Subject(s) - carbonate , chemistry , ion exchange , aqueous solution , ion , carbonate ion , pulse sequence , inorganic chemistry , analytical chemistry (journal) , nuclear magnetic resonance , organic chemistry , physics
pH shows the way: Rates of carbonate exchange by two pH‐sensitive pathways between aqueous carbonate ion and UO 2 (CO 3 ) 3 4− (aq) (see picture) are measured by high‐pressure NMR. To accomplish this, a custom pulse sequence is employed to achieve selective inversion. Rates of chemical exchange are determined by modeling the return to equilibrium.