Tuning the NIR Absorption Properties of 1,3,4,6,9b‐Pentaazaphenalene Derivatives Through the Spatially Separated Frontier Molecular Orbitals

• Published in: European journal of organic chemistry Vol. 2020; no. 7; pp. 777 - 783
• Main Authors: Watanabe, Hiroyuki, Ochi, Junki, Tanaka, Kazuo, Chujo, Yoshiki
• Format: Journal Article
• Language: English
• Published: WEINHEIM Wiley 21.02.2020; Wiley Subscription Services, Inc
• Subjects: Absorption; Azaphenalene; Chemistry; Chemistry, Organic; Derivatives; Electrons; Energy levels; Fused‐ring systems; Heterocycles; Molecular orbitals; Near infrared; Physical Sciences; Science & Technology; Heterocycles; POLYMERS; Azaphenalene; SOLAR-CELLS; FLUOROPHORES; PERFORMANCE; AZULENE; PHOTOPHYSICAL PROPERTIES; TERAZULENE; Fused-ring systems; Near infrared

Strategical modulation of energy levels of molecular electronic orbitals and resulting near‐infrared (NIR) absorption properties of 2,5,7,9‐tetrasubstituted 1,3,4,6,9b‐pentaazaphenalene (5AP) derivatives are reported. Recent reports on NIR‐absorbing materials mainly rely on donor–acceptor electronic...