Real-time spectroscopy of isomerization process in azobenzene

Author

Kobayashi, Takehiko ; Saito, Takashi

Author_Institution

Dept. of Phys., Univ. of Tokyo, Japan

fYear

2002

fDate

19-24 May 2002

Firstpage

120

Lastpage

121

Abstract

Summary form only given. Azobenzene and its derivatives are known as typical molecules showing the trans-cis photoisomerization and are studied for basic understanding of the fundamental chemistry. There are two mechanisms which are proposed for photoisomerization process of azobenzene and its derivatives. One is the rotation of phenyl ring around the azo bond, and the other is the in-plane inversion of phenyl ring at one of the two N-atoms. We have investigated the real-time dynamics of molecular vibration in the excited state of trans-DMAA-B [methyl yellow; 4-(dimethylamino)azobenzene] in dimethyl-sulfoxide solution by pump-probe spectroscopy.

Keywords

excited states; isomerisation; organic compounds; photochemistry; time resolved spectra; vibrational states; azobenzene; chirped pulse excitations; dimethyl-sulfoxide solution; dynamic mode-coupling model; excited state; in-plane inversion; molecular vibration; multidimensional model; phenyl ring rotation; pump-probe spectra; real-time dynamics; time dependence; trans-cis photoisomerization; Organic compounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Long Beach, CA, USA

Print_ISBN

1-55752-708-3

Type

conf

DOI

10.1109/QELS.2002.1031191

Filename

1031191