Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Mechanism of hexacyanoferrate(III) oxidation of 1-propanol and 2-propanol in aqueous alkaline medium (1979)
    Springer
    Monatshefte für Chemie 110 (1979), S. 1455-1460 
    Details
    ISSN: 1434-4475
    Keywords: Kinetics ; Mechanism ; Oxidation of alcohols ; Reduction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Kinetische Studien ergaben für die Oxidation Abhängigkeiten erster Ordnung sowohl für die Alkohole, als auch für OH- und Hexacyanoferrat(III). Die Daten legen nahe, daß das Substrat-Anion zunächst unter einfacher Ladungsübertragung oxidiert wird, wobei das gebildete freie Radikal weiterer Oxidation zu den endgültigen Reaktionsprodukten unterliegt.
    Notes: Abstract Kinetic studies of the hexacyanoferrate(III) oxidation of 1-propanol and 2-propanol have been carried out in aqueous alkaline medium. The reaction velocity is of first order with respect to alcohols, alkali and hexacyanoferrate(III). The kinetic data suggest that the oxidation involves the formation of an anion of the substrate undergoes oxidation with hexacyanoferrate(III) via charge transfer process. The free radical thus produced is further oxidised to form the final products.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00938301
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Kinetics and mechanism of oxidation of xylitol and galactitol by hexacyanoferrate(III) ion in aqueous alkaline medium (1981)
    Springer
    Monatshefte für Chemie 112 (1981), S. 1253-1260 
    Details
    ISSN: 1434-4475
    Keywords: Galactitol ; Kinetics ; Mechanism ; Oxidation ; Reduction ; Xylitol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Das Geschwindigkeitsgesetz der Titelreaktion ist in beiden Fällen erster Ordnung bezüglich Hexacyanoferrat(III). Die Oxidation ist erster Ordnung bei niedrigen Konzentrationen von Xylit und Galaktit und geht bei Erhöhung der Konzentration gegen null. In gleicher Weise wurde eine Kinetik erster Ordnung bezüglich Hydroxyl bei niedrigen Konzentrationen und eine erniedrigte Ordnung bei höheren Konzentrationen für die Oxidation von Xylit beobachtet; bei Galaktit bleibt die Oxidation auch bei höheren Hydroxyl-Konzentrationen erster Ordnung. Es wird angenommen, daß die Reaktion über einen aktivierten Komplex zwischen [KFe(CN)6]2− und dem Substrat-Anion verläuft; dieser Komplex zerfällt in [KFe(CN)6]3− und ein Substrat-Radikal. Ein möglicher Reaktionsmechanismus wird vorgeschlagen.
    Notes: Abstract Kinetics of oxidation of xylitol and galactitol by hexacyanoferrate(III) ion in aqueous alkaline medium is reported. The reaction rate is of first order with respect to hexacyanoferrate(III) in each substrate. The reaction is first order at lower concentrations of xylitol and galactitol and tends towards zero order as the concentration increases. Similarly first order kinetics was obtained with respect to hydroxide ion at lower concentrations and tends to lower order at higher concentration in the oxidation of xylitol; in the oxidation of galactitol the reaction is first order with respect to hydroxide ion even up to manyfold variation. The course of reaction has been considered to proceed through the formation of an activated complex between [K Fe(CN)6]2− and substrate anion which decomposes slowly into radical and [K Fe(CN)6]3−. A probable reaction mechanism is proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00904678
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Comparison of single seed descent, selective intermating and mass selection for seed size in greengram (Vigna radiata (L.) Wilczek) (1986)
    Springer
    Theoretical and applied genetics 72 (1986), S. 678-681 
    Details
    ISSN: 1432-2242
    Keywords: Greengram ; Vigna radiata ; SSD ; Mass selection ; Intermating
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Three selection methods (single seed descent (SSD), mass selection and selective intermating) were applied simultaneously to a highly heterogeneous and broadly based population of greengram. Progeny developing after two cycles of selection were evaluated for yield and seven other economic characters. The relative efficacy of each selection method was judged on the basis of the number of high yielding progeny, mean yield of top 10% progeny, and mean of the highest yielding progeny. Selection after two cycles of selective intermating was found to be the best method for generating productive progeny although mass selection favouring smaller seeds was an equally efficient method. Both of these were found superior to SSD selection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00289008
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Comparative efficacy of pedigree selection and selective intermating in greengram (Vigna radiata (L.) Wilczek) (1985)
    Springer
    Theoretical and applied genetics 71 (1985), S. 129-132 
    Details
    ISSN: 1432-2242
    Keywords: Greengram ; Vigna radiata ; Selective intermating ; Pedigree selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Selective intermating and pedigree selection methods were applied simultaneously to highly heterogeneous and heterozygous base populations of greengram in order to compare their relative efficacy in terms of evolving the number of productive lines as well as their production potential. Selection after two cycles of selective intermating was found to be a better method than traditional pedigree selection. The demerits of pedigree selection and merits of selective intermating are discussed. It is suggested that selective intermating replace the widely adopted but less effective pedigree selection for generating promising new material in such autogamous crops as greengram.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00278265
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...