Anomeric effect in N-azidomethylpyrrolidine: gas-phase electron diffraction and theoretical study

Olga V Dorofeeva1, Alexander V Mitin, Ekaterina P Altova

  • 1Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow 119991, Russia. dorofeeva@phys.chem.msu.ru

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Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single stretching vibration...
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