The Structure Of Uranyl Sulfate In Aqueous Solution - Monodentate versus Bidentate Coordination

Hennig, C.; Schmeide, K.; Brendler, V.; Moll, H.; Tsushima, S.; Scheinost, A. C.

The Structure Of Uranyl Sulfate In Aqueous Solution - Monodentate versus Bidentate Coordination

Hennig, C.; Schmeide, K.; Brendler, V.; Moll, H.; Tsushima, S.; Scheinost, A. C.

The structure of U(VI) aquo sulfato complexes has been investigated by LIII edge EXAFS spectroscopy. A monodentate coordination with a U-Smon distance of 3.57±0.02 Å prevail in equimolar [SO42-]total/U(VI) solutions. With increasing [SO42-]total/U(VI) ratio, bidentate coordination with a U-Sbid distance of 3.11±0.02 Å becomes dominant.

Keywords: EXAFS; U(VI); aquo sulfato complex

Contribution to proceedings
13th International Conference on X-ray Absorption Fine Structure (XAFS13), 09.-14.07.2006, Stanford, United States
API - Special Edition

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