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'Quadrupole splitting' in keywords
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1Author    M. I. OshtrakhRequires cookie*
 Title    The Features of Mössbauer Spectra of Hemoglobin in Relation to the Quadrupole Splitting and Heme Iron Stereochemistry  
 Abstract    Mössbauer spectra of various human ferrous hemoglobins in different ligand forms demonstrated some features such as non-Lorentzian line shape for oxyhemoglobins, narrower line width for carbonmonoxide, and variations of quadrupole splitting for different hemoglobins. These features were considered in relation to the variations of quadrupole splitting and heme iron stereochemistry in different hemoglobins as well as in non-equivalent subunits of hemoglobin tetramer. 
  Reference    Z. Naturforsch. 53a, 608—614 (1998); received January 26 1998 
  Published    1998 
  Keywords    Mössbauer Spectroscopy, Human Hemoglobins, Quadrupole Splitting, Heme Iron Stereochemistry 
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 TEI-XML for    default:Reihe_A/53/ZNA-1998-53a-0608.pdf 
 Identifier    ZNA-1998-53a-0608 
 Volume    53 
2Author    M. I. Oshtrakh, V. A. Semionkin, O. B. Milder, A. B. Livshits, A. A. KozlovRequires cookie*
 Title    Quadrupole Splitting and Paramagnetic Iron Core Structure in Iron-Dextran Complexes: A Mössbauer Effect Study  
 Abstract    The pharmaceutical^ important iron-dextran complexes (ferritin models) were studied by Mössbauer spectroscopy in frozen solution at 87 K and in lyophilized form at 297 and 87 K. The quadrupole splittings of the lyophilized forms of iron-dextran complexes measured at 297 and 87 K were slightly different. The quadrupole splittings of several complexes in lyophilized form and frozen solutions measured at 87 K were also different. Slight differences in the quadrupole split-ting were found for various iron-dextran complexes. Mössbauer spectra of iron-dextran complexes were better fitted using two quadrupole split doublets. Slight differences in the corresponding quadrupole splittings and doublet ratios were observed for various complexes. 
  Reference    Z. Naturforsch. 55a, 186—192 (2000); received September 11 1999 
  Published    2000 
  Keywords    Iron-dextran Complexes, Mössbauer Spectroscopy, Paramagnetic Iron Core, Quadrupole Splitting 
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 TEI-XML for    default:Reihe_A/55/ZNA-2000-55a-0186.pdf 
 Identifier    ZNA-2000-55a-0186 
 Volume    55 
3Author    M. I. OshtrakhRequires cookie*
 Title    Mössbauer Effect in Biomedical Research: Variations of Quadrupole Splitting in Relation to the Qualitative Changes of Biomolecules  
 Abstract    This review deals with studies of the variations of quadrupole splitting, electronic structure and stereochemistry of iron associated with qualitative changes of biomolecules. The possibility to determine various iron containing species resulting from the destruction of biomolecules using Mössbauer parameters is shown. A small change of iron stereochemistry leads to a small change of the iron electronic structure which could be detected by small changes of quadrupole splitting. It is expected that quadrupole splitting of iron gives new information for biomedical research on a molecular level. 
  Reference    Z. Naturforsch. 51a, 381—388 (1996); received October 20 1995 
  Published    1996 
  Keywords    Mössbauer effect, Biomedical research, Quadrupole splitting, Iron electronic structure, Hemoglobin, Molecular diseases 
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 TEI-XML for    default:Reihe_A/51/ZNA-1996-51a-0381.pdf 
 Identifier    ZNA-1996-51a-0381 
 Volume    51