@article{3bc914064f5c4ae1ba0897d2056b1e17,
title = "Azulene-Fused Linear Polycyclic Aromatic Hydrocarbons with Small Bandgap, High Stability, and Reversible Stimuli Responsiveness",
abstract = "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.",
author = "Masahito Murai and Shinji Iba and Hiromi Ota and Kazuhiko Takai",
note = "Funding Information: This work was financially supported by a Grant-in-Aid for Scientific Research (C) (No. 16K05778) from MEXT, Japan, and the Advanced Catalytic Transformation program for Carbon utilization (ACT-C) project of the Japan Science and Technology Agency. M.M. thanks ADEKA Award in Synthetic Organic Chemistry, Japan, and Sumitomo Foundation. We gratefully thank Dr. Sobi Asako, Dr. Hiroki Mori, and Dr. Kazuto Takaishi (Okayama University) for the valuable discussions. Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",
year = "2017",
month = oct,
day = "20",
doi = "10.1021/acs.orglett.7b02729",
language = "English",
volume = "19",
pages = "5585--5588",
journal = "Organic Letters",
issn = "1523-7060",
publisher = "American Chemical Society",
number = "20",
}