High-Pressure Studies of Cesium Uranyl Chloride.

The pressure behavior of crystalline Cs2UO2Cl4 has been explored using a diamond anvil cell. The uranyl fluorescence intensity decreases dramatically with increasing pressure. Using the O-U-O symmetric stretching frequency, an apparent linear decrease in bond length with increasing pressure was observed. A linear decrease in fluorescence intensity with increasing pressure was attributed to a large growth in the nonradiative relaxation, likely attributed to increased relaxation through phonon modes. Quantum theory of atoms in molecules calculations and ab initio wave function methods (CASSCF) support the U≡O bond in UO22+ being highly sensitive to the bond distance, but negligibly affected by the U-Cl bond length.

• Publication year

  2019

• Venue

  Inorganic Chemistry

• Publication date

  2019-01-07

• Fields of study

  Medicine, Chemistry

• Identifiers
  DOI 10.1021/acs.inorgchem.8b02300PMID 30569703
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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