Anthryl-substituted trialkyldisilene showing distinct intramolecular charge-transfer transition

Takeaki Iwamoto; Maiko Kobayashi; Kei Uchiyama; Shin Sasaki; Selvarajan Nagendran; Hiroyuki Isobe; Mitsuo Kira

doi:10.1021/ja8093313

Anthryl-substituted trialkyldisilene showing distinct intramolecular charge-transfer transition

J Am Chem Soc. 2009 Mar 11;131(9):3156-7. doi: 10.1021/ja8093313.

Authors

Takeaki Iwamoto¹, Maiko Kobayashi, Kei Uchiyama, Shin Sasaki, Selvarajan Nagendran, Hiroyuki Isobe, Mitsuo Kira

Affiliation

¹ 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

PMID: 19226121
DOI: 10.1021/ja8093313

Abstract

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.