Doubly Linked Azulene Dimer: A Novel Non-benzenoid Isomer of Perylene.

 0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Ryoji Hatakenaka, Shin Kamijo, Yuji Mikata, Yoshiyuki Mizuhata, Toshihiro Murafuji, Fumito Tani, So Ueno, Kazuma Urabe, Hiroko Yamada, Mitsuaki Yamauchi

Ngôn ngữ: eng

Ký hiệu phân loại: 003.209 Historical, geographic, persons treatment of forecasting as a discipline

Thông tin xuất bản: Germany : Chemistry (Weinheim an der Bergstrasse, Germany) , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 736909

We report herein the synthesis of an unprecedented isomer of perylene, dicyclohepta[cd,fg]-as-indacene bearing two phenyl groups (1-Ph) by the nickel-mediated intramolecular homocoupling of a 4,4'-biazulene derivative (2). The X-ray crystallographic analysis and theoretical calculations revealed that 1-Ph adopts a unique helically twisted geometry although the local aromaticity of azulene moieties was preserved. The double covalent linkage of the two azulene skeletons imparts significant orbital interaction, which affords near-infrared (NIR) absorption (up to 1720 nm) and remarkable redox behaviors despite its closed-shell electronic structure. The optical band gap of 1-Ph is calculated to be 0.72 eV from its absorption onset, which is one of the narrowest values among the hitherto reported air-stable non-benzenoid PAHs. Furthermore, the thin-film of 1-Ph serves as a p-type semiconductor. Our study offers fundamental insights into not only the aromaticity with the nonalternant topologies of 1-Ph but also its potential application in novel organic electronics.
Tạo bộ sưu tập với mã QR

THƯ VIỆN - TRƯỜNG ĐẠI HỌC CÔNG NGHỆ TP.HCM

ĐT: (028) 36225755 | Email: tt.thuvien@hutech.edu.vn

Copyright @2024 THƯ VIỆN HUTECH