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  • 1
    Electronic Resource
    Electronic Resource
    Über die Wirkung von Auxochromen in Flavyliumsalzen, II. 5,6-Benzo-flavyliumsalze (1973)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 56 (1973), S. 985-986 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Analogously to the 7-hydroxyflavyliumion the 5,6-benzoflavyliumion affects auxochromes in 4′-position not as strongly as the flavylium ion. In the flavylium series the dimethyl-amino group e.g. causes a bathochromic effect of 137 nm; in the 5,6-benzoflavylium series however the bathochromic effect is only 109 nm. The absorption maxima of both series converge; in the case of the dimethylamino group the convergence amounts to 28 nm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19730560317
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