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Raman study of 2,7-bis(biphenyl-4-yl-)2',7'-ditertbutyl-9,9'-spirobifluorene adsorbed on oxide surfaces

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons22128

Stähler,  Julia
Physical Chemistry, Fritz Haber Institute, Max Planck Society;
Departments of Physics and Electrical Engineering, Columbia University;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons21637

Hofmann,  Oliver T.
Theory, Fritz Haber Institute, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons22010

Rinke,  Patrick
Theory, Fritz Haber Institute, Max Planck Society;

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Citation

Stähler, J., Hofmann, O. T., Rinke, P., Blumstengel, S., Henneberger, F., Li, Y., et al. (2013). Raman study of 2,7-bis(biphenyl-4-yl-)2',7'-ditertbutyl-9,9'-spirobifluorene adsorbed on oxide surfaces. Chemical Physics Letters, 584, 74-78. doi:10.1016/j.cplett.2013.08.030.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0014-3B38-7
Abstract
We present a systematic non-resonant Raman study of the vibrational properties of the spirobifluorene derivative 2,7-bis(biphenyl-4-yl)-2’,7’-di-tertbutyl-9,9’-spirobifluorene (SP6) on three different substrates: ZnO(000-1), ZnMgO(000-1), and Al2O3(11-20). This investigation of few monolayer coverages is facilitated by the high scattering cross section of this molecule. The vibrational response of SP6 is unaffected by the choice of substrate, showing that the vibrational properties of the molecules remain unchanged by adsorption. Furthermore, we can directly compare the experimental spectra to our density functional theory calculations of the Raman cross sections of SP6 in the gas phase.