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NMR studies and DFT calculations of the symmetric intramolecular NHN-hydrogen bond of bis-(2-pyridyl)-acetonitrile: Isotope labeling strategy for the indirect 13C-detection of 15N15N couplings

✍ Scribed by Mariusz Pietrzak; Claudia Benedict; Holger Gehring; Ewald Daltrozzo; Hans-Heinrich Limbach

Book ID
103837946
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
747 KB
Volume
844-845
Category
Article
ISSN
0022-2860

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CH···N and CH···O intramolecular hydroge
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## Abstract According to the ^1^H, ^13^C and ^15^N NMR spectroscopic data and DFT calculations, the __E__‐isomer of 1‐vinylpyrrole‐2‐carbaldehyde adopts preferable conformation with the __anti__‐orientation of the vinyl group relative to the carbaldehyde oxime group and with the __syn__‐arrangement

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## Abstract The ^1^H, ^13^C and ^15^N NMR studies have shown that the __E__ and __Z__ isomers of pyrrole‐2‐carbaldehyde oxime adopt preferable conformation with the __syn__ orientation of the oxime group with respect to the pyrrole ring. The __syn__ conformation of __E__ and __Z__ isomers of pyrrol