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Volumn 118, Issue 8, 1996, Pages 2089-2090

EXAFS studies of pentavalent neptunium carbonato complexes. Structural elucidation of the principal constituents of neptunium in groundwater environments

Author keywords

[No Author keywords available]

Indexed keywords

GROUND WATER; METAL COMPLEX; NEPTUNIUM;

EID: 0029944693     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja9516423     Document Type: Article
Times cited : (72)

References (23)
  • 14
    • 13344254994 scopus 로고    scopus 로고
    • note
    • 2 (6.0 g, 0.136 mol) was slowly transferred into 150 mL (0.231 mol) of aqueous 40% tetrabutylammomum hydroxide at -78 °C in an evacuated vessel and stirred for 12 h. The solvent was removed under vacuum and the product isolated by triturating the residue with ethyl acetate and recrystallizing from ethyl acetate.
  • 15
    • 13344264355 scopus 로고    scopus 로고
    • note
    • 3 The precipitation/dissolution process was repeated three times to produce a sodium-free Np(V) solution.
  • 17
    • 13344293407 scopus 로고    scopus 로고
    • note
    • EXAFS fluorescence data (295 K) were recorded at the Stanford Synchrotron Radiation Laboratory (SSRL): unfocused beamline 4-2, Si(220) double-crystal monochromator, 3.0 GeV, 60-100 mA. EXAFS signals for each of the two-body and three-body configurations were calculated on the basis of crystallographic distances and angles Individual signals with significant contributions (see text) were summed to generate the total theoretical EXAFS signal, which was then fitted to the experimental data by varying distances, angles. Debye-Waller factors, and nonstructural parameters.
  • 18
    • 13344256689 scopus 로고    scopus 로고
    • note
    • 0.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.