Abstract
ACCORDING to Gillam and Stern1, light absorption of the azomethin bond (=C=N—) possessing a nitrogen chromophore has so far not been examined adequately in the aliphatic series. In the case of amino-acids, the significance of the region below wave-length 220 mµ, which had been neglected, was pointed out by Saidel et al.2.
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References
Gillam, A., and Stem, E. S., An Introduction to Electronic Absorption Spectroscopy in Organic Chemistry, second ed., 62 (London, 1957).
Saidel, L. J., Goldfarb, A. R., and Waldman, S., J. Biol. Chem., 197, 287 (1952).
Szilágyi, I., Vályi-Nagy, T., Szabó, I., and Keresztes, T., Nature, 193, 243 (1962); Mikrochim. Acta, 4, 671 (1962).
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SZILÁGYI, I., VÁLYI-NAGY, T. & KERESZTES, T. Ultra-violet /Absorption Spectra of Simple Aliphatic Guanidines. Nature 196, 376–377 (1962). https://doi.org/10.1038/196376a0
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DOI: https://doi.org/10.1038/196376a0
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