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Nitroxide radical induced nuclear magnetic resonance contact shift studies. Potential utility of specific downfield proton contact shifts induced by hydrogen bonding with di-tert-butyl nitroxide radical

✍ Scribed by Morishima, Isao; Ishihara, Koji; Tomishima, Kimiaki; Inubushi, Toshiro; Yonezawa, Teijiro

Book ID: 127180184
Publisher: American Chemical Society
Year: 1975
Tongue: English
Weight: 729 KB
Volume: 97
Category: Article
ISSN: 0002-7863
DOI: 10.1021/ja00843a024

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lIf and 13C NMR contact shifts have been observed for chloroform, methylene cblorido and phenylacetylene in the presence of di-tertbutyl nitroxido radical (DBNO). Upfield and downfield contact shifts were observed for 1~ and 13f.2 NMR resonances, respectively. The relative values of 13C contact shif