Asymmetric Chichibabin diradicaloids: synthesis via oxidation of SOMO–HOMO inversion radicals and near-infrared absorption for electrochromism
Abstract
) were successfully obtained through one-electron oxidation for the first time. Their structures were unequivocally confirmed by single-crystal X-ray diffraction, along with EPR and DFT calculations. Owing to their asymmetric architectures with both carbon- and nitrogen-centered radicals, they result in mixed-valence systems displaying broad NIR absorption (949-1105 nm). Furthermore, they serve as efficient redox-active materials in NIR electrochromic devices. This work outlines an effective synthetic route to asymmetric diradicaloids from SOMO-HOMO inversion radicals, and further points toward potential strategies for preparing high-spin species and push-pull-type electron-distributed optical open-shell materials.
Fields of Study & Subjects
Transition Metal Oxide Nanomaterials
Conducting polymers and applications
Covalent Organic Framework Applications
Publication details
- Journal / source
- Chemical Science
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 17
- Issue
- 34
- Pages
- 16210–16217
- Publication date
- 1 January 2026
- Language
- EN