Formation of aquatic Th(IV) colloids and stabilization by interaction with Cm(III)/Eu(III)
Article Abstract:
The different conditions in which actinide ions undergo aggregation via oxobridging to form stable colloidal species are investigated using highly sensitive methods. The results have shown that a mixed oxo-bridging of trivalent actinides elicits the generation of stable colloids, whereas individual ions in their pure form colloids under oversaturation at near neutral pH only as a transitional state for precipitation.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Large ground-state and excited-state crystal field splitting of 8-fold-coordinate Cm(super 3+) in [Y(H2O)(sub 8)]Cl3.15-crown-5
Article Abstract:
The optical spectra of Cm(super 3+) incorporated into the crystalline host structure of [Y(H2O)(sub 8)]Cl3.15-crown-5 (1) is investigated by using laser spectroscopic methods at temperatures between 20 and 293 K. The results obtained in this experiment are different from that of the findings for Ln(super 3+) aqua ions, which show weak crystal field strengths.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Hydration of Cm(super 3+) in aqueous solutions from 20 to 200 degree C. A time-resolved laser fluorescence spectroscopy study
Article Abstract:
Time-resolved laser fluorescence spectroscopy is used to study the hydration of the Cm(super 3+) ion in acidified H2O and D2O from 20 to 200 degree C. The results indicate that both the mission intensity and lifetime decrease with increasing temperature.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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