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  • 1
    Electronic Resource
    Electronic Resource
    Thermally induced hydrogen exchange processes in small proteins as seen by FTIR spectroscopy (1996)
    New York, NY : Wiley-Blackwell
    Proteins: Structure, Function, and Genetics 24 (1996), S. 379-387 
    Details
    ISSN: 0887-3585
    Keywords: infrared spectroscopy ; protein structure ; unfolding ; RNase T1 ; RNase A ; histone-like protein HBsu ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: Fourier-transform infrared (FTIR) spectroscopy has been used to study the thermally induced exchange characteristics of those backbone amide protons which persist H-D exchange at ambient conditions in ribonuclease A, in wild type ribonuclease T1 and some of its variants, and in the histone-like protein HBsu. The H-D exchange processes were induced by increasing the thermal energy of the protein solutions in two ways: (i) by linearly increasing the temperature, and (ii) by a temperature jump. To trace the H-D exchange in the proteins, various infrared absorption bands known to be sensitive to H-D exchange were used as specific monitors. Characteristic H-D exchange curves were obtained from which the endpoints (TH/D) of H-D exchange could be determined. The H-D exchange curves, the TH/D-values and the phase transition temperatures Tm were used to estimate the structural flexibility and stability of the given proteins. It is suggested that time-resolved FTIR spectroscopy can be used to determine global stability parameters of proteins.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    Bis(perfluor-n-hexyl)- und Bis(perfluor-n-octyl)cadmium: Darstellung, Eigenschaften, NMR-spektroskopische und massenspektrometrische UntersuchungenFrau Professor Marianne Baudler zum 70. Geburtstage am 27. April 1991 gewidmet (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 594 (1991), S. 95-105 
    Details
    ISSN: 0044-2313
    Keywords: Perfluoroalkyl Cadmium Compounds ; Polar Perfluoralkylation Reactions ; Conductivity Measurements ; 19F, 13C NMR, Mass Spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Bis(perfluoro-n-hexyl) and Bis(perfluoro-n-octyl) Cadmium: Preparations, Properties, NMR Spectroscopic and Mass Spectrometric InvestigationsThe perfluoroalkyl cadmium compounds Cd(C6F13)2 and Cd(C8F17)2 are isolated in pure states as well as complexes with dmf, CH3CN, glyme, and diglyme. The reaction rate of Cd(Rf)2 with PhHgCl increases with increasing dissociation, which is established by conductivity measurements. The NMR and the mass spectra are discussed.
    Notes: Die Perfluoralkylcadmium-Verbindungen Cd(C6F13)2 und Cd(C8F17)2 werden sowohl unkomplexiert als auch als Komplexe mit DMF, CH3CN, Glyme und Diglyme dargestellt. Die Reaktionsgeschwindigkeit der Cd(Rf)2-Verbindungen mit PhHgCl nimmt mit der durch Leitfähigkeitsmessungen in verschiedenen Lösungsmitteln bestimmten Dissoziation zu. Die NMR-sowie die Massenspektren werden diskutiert.
    Additional Material: 7 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19915940111
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    Paper (German National Licenses)
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