Thulstrup, Peter Waaben4; Jones, Nykola2; Hoffmann, Søren Vrønning2; Spanget-Larsen, Jens3
1 Administration, Department of Chemistry, Faculty of Science, Københavns Universitet2 Institut for Fysik og Astronomi - Center for Storage Ring Facilities3 Funktionelle Biomaterialer4 Administration, Department of Chemistry, Faculty of Science, Københavns Universitet
A synchrotron radiation linear dichroism investigation
The electronic transitions of 9,10-bis(phenylethynyl)anthracene (BPEA) were investigated by synchrotron radiation linear dichroism (SRLD) spectroscopy in the range 20000–58000 cm1 (500–170 nm) on molecular samples aligned in stretched polyethylene. The investigation was supported by variable temperature spectroscopy and by quantum chemical calculations in the LCOAO and TD-DFT models. The combined experimental and theoretical evidence leads to characterization of several previously unobserved transitions and provides a revised polarization analysis of the visible absorption band of BPEA.
Chemical Physics Letters, 2013, Vol 559, p. 35-40
Synchrotron radiation; Linear dichroism; UV-Vis absorption; Electronic transitions; Polarization