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    The Complexation of Lanthanides by Azo-B-Diketones Stability Constants

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    078202-0012-fulltext.pdf (229.4Kb)
    Date
    1982
    Author
    Abdel Moez, M. S.
    El-Anani, G. A.
    Ramadan, A. A.
    El-Shetary, B. A.
    عبد المعز, محمد سمير
    العناني, جابر
    رمضان, عاطف
    الشطيري, بشير
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    Abstract
    The stability constants of the complexes between the trivalent lanthanide series of cations and series of azo-B-diketone ligands are reported. The measurements were conducted at 30°C and zero ionic strength (free KN03), in 100 % methanol. The relation between the overall stability constant (Log B;) and atomic number of lanthanide elements, shows a gadolinium-break. The relation between (Log Bz) and the basicity of the studied ligands ( 2 pKi + pKz) are, also discussed. The overall stability values obtained reflected a great affinity of the organic ligands for chelation with lanthanide ions.
    DOI/handle
    http://hdl.handle.net/10576/7795
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    • Qatar University Science Journal - [From 1981 TO 2007] [‎770 ‎ items ]

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