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Title: Systematic view of optical absorption spectra in the actinide series

In recent years sufficient new spectra of actinides in their numerous valence states have been measured to encourage a broader scale analysis effort than was attempted in the past. Theoretical modelling in terms of effective operators has also undergone development. Well established electronic structure parameters for the trivalent actinides are being used as a basis for estimating parameters in other valence states and relationships to atomic spectra are being extended. Recent contributions to our understanding of the spectra of 4+ actinides have been particularly revealing and supportive of a developing general effort to progress beyond a preoccupation with modelling structure to consideration of the much broader area of structure-bonding relationships. We summarize here both the developments in modelling electronic structure and the interpretation of apparent trends in bonding. 60 refs., 9 figs., 1 tab.
Authors:
Publication Date:
OSTI Identifier:
5283287
Report Number(s):
CONF-8509147-8
ON: DE85018406
DOE Contract Number:
W-31-109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: ACTINIDES '85, Aix-en-Provence, France, 1 Sep 1985
Research Org:
Argonne National Lab., IL (USA)
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; ACTINIDES; ELECTRONIC STRUCTURE; ABSORPTION SPECTRA; CHEMICAL BONDS; VALENCE; ELEMENTS; METALS; SPECTRA 400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials