Change of electric dipole moment in charge transfer transitions of ferrocene oligomers studied by ultrafast two-photon absorption

Alexander Mikhaylov; Eduardo Arias; Ivana Moggio; Ronald Ziolo; Merle Uudsemaa; Aleksander Trummal; Thomas Cooper; Aleksander Rebane

doi:10.1117/12.2249773

16 February 2017 Change of electric dipole moment in charge transfer transitions of ferrocene oligomers studied by ultrafast two-photon absorption

Alexander Mikhaylov, Eduardo Arias, Ivana Moggio, Ronald Ziolo, Merle Uudsemaa, Aleksander Trummal, Thomas Cooper, Aleksander Rebane

Author Affiliations +

Proceedings Volume 10101, Organic Photonic Materials and Devices XIX; 1010117 (2017) https://doi.org/10.1117/12.2249773
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

Change of permanent electric dipole moment in the lower-energy charge transfer transitions for a series of symmetrical and non-symmetrical ferrocene-phenyleneethynylene oligomers were studied by measuring the corresponding femtosecond two-photon absorption cross section spectra, and were determined to be in the range Δμ = 3 – 10 D. Quantum-chemical calculations of Δμ for the non-symmetrical oligomers show good quantitative agreement with the experimental results, thus validating two-photon absorption spectroscopy as a viable experimental approach to study electrostatic properties of organometallics and other charge transfer systems.

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Alexander Mikhaylov, Eduardo Arias, Ivana Moggio, Ronald Ziolo, Merle Uudsemaa, Aleksander Trummal, Thomas Cooper, and Aleksander Rebane "Change of electric dipole moment in charge transfer transitions of ferrocene oligomers studied by ultrafast two-photon absorption", Proc. SPIE 10101, Organic Photonic Materials and Devices XIX, 1010117 (16 February 2017); https://doi.org/10.1117/12.2249773

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