3 years ago
Azulene-Fused Linear Polycyclic Aromatic Hydrocarbons with Small Bandgap, High Stability, and Reversible Stimuli Responsiveness
Shinji Iba, Masahito Murai, Hiromi Ota, Kazuhiko Takai
Azulene-fused polycyclic aromatic hydrocarbons (PAHs) were synthesized from commercially available azulene in four steps. The resulting azulene conjugates exhibited significantly narrow HOMO–LUMO bandgaps with high air stability, confirmed by photophysical study. Introduction of azulene also enabled the unique reversible stimuli-responsiveness even with the weak acid and base, which can potentially control the degree of conjugation and optoelectronic properties by simple acid–base and redox processes.
Publisher URL: http://dx.doi.org/10.1021/acs.orglett.7b02729
DOI: 10.1021/acs.orglett.7b02729
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