Anthryl-substituted trialkyldisilene showing distinct intramolecular charge-transfer transition.
1-Naphthyl-, 9-phenanthryl-, and 9-anthryl-substituted trialkyldisilenes 1-3 were synthesized as the first stable disilenes with single polycyclic aromatic substituents, allowing elucidation of the unprecedented intramolecular charge transfer interaction between disilene pi and aromatic pi systems. Anthryl-substituted disilene 3 having a low-lying pi*(aryl) LUMO showed a distinct ICT absorption band due to the charge transfer from a disilene pi donor to an aromatic pi acceptor.
Iwamoto
Takeaki
T
Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan. iwamoto@mail.tains.tohoku.ac.jp
Kobayashi
Maiko
M
Uchiyama
Kei
K
Sasaki
Shin
S
Nagendran
Selvarajan
S
Isobe
Hiroyuki
H
Kira
Mitsuo
M