Browsing by Subject "Energy barrier"

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  • Dynamic NMR study of cyclic derivatives of pyridoxine 
    Rakhmatullin I.; Galiullina L.; Garipov M.; Strel'nik A.; Shtyrlin Y.; Klochkov V. (2014)
    A series of pyridoxine derivatives was investigated by 1H and 2D nuclear overhauser enhancement spectroscopy (NOESY) NMR. The free energies of activation for the pyridyl-oxygen rotation of the 2,4-dinitrophenyl ether of ...
  • Stereodynamics of some pyridoxine derivatives 
    Rakhmatullin I.; Galiullina L.; Balandina A.; Garipov M.; Strelnik A.; Galiullina A.; Shtyrlin Y.; Klochkov V. (2016)
    © 2016 John Wiley & Sons, Ltd.The conformational properties of three pyridoxine derivatives were studied by 1H dynamic NMR spectroscopy. Conformational exchange caused by a rotation of 2-nytrophenyl group around one single ...
  • Synthesis of a new quaternary phosphonium salt: NMR study of the conformational structure and dynamics 
    Aganova O.; Galiullina L.; Aganov A.; Shtyrlin N.; Pugachev M.; Strel'nik A.; Koshkin S.; Shtyrlin Y.; Klochkov V. (2015)
    © 2015 John Wiley & Sons, Ltd. A novel phosphonium salt based on pyridoxine was synthesized. Conformational analysis of the compound in solution was performed using dynamic NMR experiments and calculations. The obtained ...

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