A15N NMR Study of Protonation and Deprotonation of 4,5-Dicyanoimidazole and Its 2-Amino Analogue

Autor:	L. Stefaniak, J. Klimkiewicz, E. Grech, H. Korczak, G. A. Webb
Rok vydání:	1996
Předmět:	Deprotonation Chemistry Protonation Ring (chemistry) Photochemistry Medicinal chemistry Spectroscopy Atomic and Molecular Physics and Optics Analytical Chemistry
Zdroj:	Spectroscopy Letters. 29:1697-1702
ISSN:	1532-2289 0038-7010
DOI:	10.1080/00387019608007158
Popis:	Protonation and deprotonation of the title compounds, was studied by means of 15N NMR. The shieldings of the ring nitrogen atoms are found to be very sensitive to changes in the amount of protonation. In contrast the 15N shieldings of the cyano and amino groups are found to be relatively insensitive to protonation effects and are unsuitable for estimating the degree of protonation occurring.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6ad041ff8f74cb32bc982efae14aaca6 https://doi.org/10.1080/00387019608007158 Zobrazit plný text záznamu