Synthesis, electronic and emission spectroscopy of diphenylamine-azulene co-oligomers - Merkhatuly, Nurlan; Iskanderov, Ablaykhan; Abeuova, Saltanat; Iskanderov, Amantay; Kadirberlina, Gulpan; Seitkan, Ainur; Kemelbekova, Arailym (Chemical Bulletin of Kazakh National University, 2025)