Hydrogen bonding interactions of α-phenylcinnamic acid isomers in the liquid phase studied by IR and NMR spectroscopies and computational methods

Study of conformations and hydrogen bond

Study of conformations and hydrogen bonds in the configurational isomers of pyrrole-2-carbaldehyde oxime by 1H, 13C and 15N NMR spectroscopy combined with MP2 and DFT calculations and NBO analysis

✍ Andrei V. Afonin; Igor A. Ushakov; Dmitry V. Pavlov; Andrei V. Ivanov; Al'bina I 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 173 KB 👁 1 views

## 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