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  • 1995-1999  (12)
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  • 11
    Electronic Resource
    Electronic Resource
    Coordination sphere symmetry of di-n-butyltin(IV) complexes containing ligands with {O,O} donor atoms (1998)
    Springer
    Journal of radioanalytical and nuclear chemistry 232 (1998), S. 151-158 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Eight di-n-butyltin(IV) complexes with glycolic, 2-hydroxy-propionic, succinic and malic acids, have been prepared by two different procedures. The compounds were characterised by elemental analysis, FTIR, Raman and119Sn Mössbauer spectroscopy. The IR and Raman data indicated the presence of bidentate and/or monodentate carboxylate groups, non linear C−Sn−C bonds, and Sn−O bonds within the complexes. The results of Mössbauer spectroscopic measurements, based on point-charge model calculations, have shown the occurrence of trigonal bipyramidal environment in the central tin(IV) atom, besides the octahedral and tetrahedral structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02383732
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    Paper (German National Licenses)
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  • 12
    Electronic Resource
    Electronic Resource
    Mössbauer and X-ray diffraction study of isothermal ageing effect at 500°C in electrochemically deposited Fe−Ni−Cr alloys (1999)
    Springer
    Journal of radioanalytical and nuclear chemistry 240 (1999), S. 789-792 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Mössbauer spectroscopy, X-ray diffractometry and microprobe analysis were used to study electrodeposited Fe−Ni−Cr (40–50% Fe, 40–47% Ni, 3–5% Cr) alloys isothermally aged at 500°C from 5 minutes to 100 hours in an inert argon gas atmosphere. The main phase of the as-deposited samples exhibits ferromagnetic microcrystalline behavior, whereas the thermally prepared samples of same composition are always paramagnetic. The dominant effect of ageing is an oxidation process which resulted in the formation of hematite and magnetite iron oxides in considerable amounts and which are attributable to the presence of oxygen inclusions in the as-electrodeposited samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02349853
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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