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The Electronically Excited-States of 2-Phenylindole

Bo Albinsson (Institutionen för fysikalisk kemi) ; Svante Eriksson (Institutionen för fysikalisk kemi) ; Reidar Lyng (Institutionen för fysikalisk kemi) ; Mikael Kubista (Institutionen för fysikalisk kemi)
Chemical Physics (0301-0104). Vol. 151 (1991), 1, p. 149-157.
[Artikel, refereegranskad vetenskaplig]

The light absorption of 2-phenylindole (2PI) in the UV region (210-350 nm) is investigated by means of linear dichroism in stretched polyethylene film and fluorescence polarization anisotropy in a propylene glycol glass. Experimentally, 2PI is found to have five distinct electronic transitions located above 200 nm for which the transition moments are determined. The conclusions are supported by quantum chemical calculations and the origin of the so-called composite band is discussed. Comparison with the absorption spectrum of the fluorescent DNA binding probe DAPI is also made and 2PI is found to be an appropriate model system for the electronic transitions of DAPI.



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Denna post skapades 2012-10-01.
CPL Pubid: 164205

 

Institutioner (Chalmers)

Institutionen för fysikalisk kemi (1900-2003)

Ämnesområden

Nanovetenskap och nanoteknik
Kemi

Chalmers infrastruktur