• Mallikarjuna R. Guda
  • Maria I. Valieva
  • Dmitry S. Kopchuk
  • Rammohan Aluru
  • Albert F. Khasanov
  • Olga S. Taniya
  • Alexander S. Novikov
  • Grigory V. Zyryanov
  • Brindaban C. Ranu
A series of α-cycloamine substituted 2,2’-bipyridines 3ae’-3ce’ was obtained via the one-pot approach based on ipso-substitution of a cyano-group in 1,2,4-triazines, followed by aza-Diels–Alder reaction in good yields. Photophysical properties, including fluorosolvatochromism, were studied for 3ae’-3ce’ and were compared with α-unsubstituted 2,2’-bipyridines. In addition, dipole moments differences in ground and excited states were calculated by both Lippert-Mataga equation and DFT studies and were compared to each other. The correlation between the size of cycloamine unit and the dipole moments differences value (based on Lippert-Mataga equation) was observed. In addition charge transfer indices (DCT, Λ, H and t) were calculated to demonstrate influence of molecular structure on the intramolecular charge transfer degree.
Original languageEnglish
JournalJournal of Fluorescence
DOIs
StateE-pub ahead of print - 16 Jun 2023

    Research areas

  • 2,2’-bipyridines, Cycloamines, Fluorosolvatochromism, Lippert-Mataga equation, CT-indices, DFT studies

ID: 106484499