Fundamental Tuning of the Two-Photon Absorption in
23rd IUPAC Conference on Physical Organic Chemistry (ICPOC23) 3rd – 8th July 2016 • Sydney • Australia
Fundamental Tuning of the Two-Photon Absorption in Multipodal Push-Pull Chromophores F. Bureša,* a
Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studetnská 537, Pardubice, 53210, Czech Republic, http://bures.upce.cz.
Multiphoton absorbing (MPA)1 molecules are currently attracting considerable attention of organic and material chemists as well as physicists. The simultaneous absorption of two photons by a molecule has been theoretically predicted as early as 1931 by M. Göppert-Mayer and experimentally verified after the invention of the laser (1960). Two-photon absorption (2PA), a nonlinear optical phenomenon related to the imaginary part of the third-order nonlinear susceptibility, constitutes the physical origin of numerous applications such as up-converted lasing, two-photon microscopy and imaging, 3D microfabrication and 3D optical data storage, optical limiters etc. In this contribution, we will report on a series of tripodal (3), quadrupolar (2) and linear (1) push-pull molecules with central triphenylamine donor and peripheral cyano substituted acceptors (Figure 1).2-3 These molecules possess systematically altered π-linker, cyano acceptors as well as number of branches. Based on the experimental properties measured by differential scanning calorimetry, electrochemistry, one and two photon absorption/emission spectra, supported by the DFT calculations, thorough structure-property (2PA cross-section) relationships will be discussed.
Figure 1. Tripodal D-(π-A)3, quadrupolar D-(π-A)2, and linear D-π-A systems 1-3 for 2PA.
Acknowledgement: This research was supported by the Ministry of Education, Youth and Sports of the Czech Republic (LG15030). References 1. (a) Guo, L. and Wong, M. S. Adv. Mater. 2014, 26, 5400-5428; (b) He, G. S.; Tan, L.-S.; Zheng, Q. and Prasad, P. N. Chem. Rev. 2008, 108, 1245-1330. 2. Cvejn, D.; Michail, E.; Polyzos, I.; Almonasy, N.; Pytela, O.; Klikar, M.; Mikysek, T.; Giannetas, V.; Fakis, M.; Bureš, F. J. Mater. Chem. C 2015, 3, 7345-7355. 3. Cvejn, D.; Michail, E.; Seintis, K.; Klikar, M.; Pytela, O.; Mikysek, T.; Almonasy, N.; Ludwig, M.; Giannetas, V.; Fakis, M.; Bureš, F. RSC Adv. 2016, 6, 12819-12828.
ILC2
Fundamental Tuning of the Two-Photon Absorption in Multipodal Push-Pull Chromophores F. Bureša,* a
Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studetnská 537, Pardubice, 53210, Czech Republic, http://bures.upce.cz.
Multiphoton absorbing (MPA)1 molecules are currently attracting considerable attention of organic and material chemists as well as physicists. The simultaneous absorption of two photons by a molecule has been theoretically predicted as early as 1931 by M. Göppert-Mayer and experimentally verified after the invention of the laser (1960). Two-photon absorption (2PA), a nonlinear optical phenomenon related to the imaginary part of the third-order nonlinear susceptibility, constitutes the physical origin of numerous applications such as up-converted lasing, two-photon microscopy and imaging, 3D microfabrication and 3D optical data storage, optical limiters etc. In this contribution, we will report on a series of tripodal (3), quadrupolar (2) and linear (1) push-pull molecules with central triphenylamine donor and peripheral cyano substituted acceptors (Figure 1).2-3 These molecules possess systematically altered π-linker, cyano acceptors as well as number of branches. Based on the experimental properties measured by differential scanning calorimetry, electrochemistry, one and two photon absorption/emission spectra, supported by the DFT calculations, thorough structure-property (2PA cross-section) relationships will be discussed.
Figure 1. Tripodal D-(π-A)3, quadrupolar D-(π-A)2, and linear D-π-A systems 1-3 for 2PA.
Acknowledgement: This research was supported by the Ministry of Education, Youth and Sports of the Czech Republic (LG15030). References 1. (a) Guo, L. and Wong, M. S. Adv. Mater. 2014, 26, 5400-5428; (b) He, G. S.; Tan, L.-S.; Zheng, Q. and Prasad, P. N. Chem. Rev. 2008, 108, 1245-1330. 2. Cvejn, D.; Michail, E.; Polyzos, I.; Almonasy, N.; Pytela, O.; Klikar, M.; Mikysek, T.; Giannetas, V.; Fakis, M.; Bureš, F. J. Mater. Chem. C 2015, 3, 7345-7355. 3. Cvejn, D.; Michail, E.; Seintis, K.; Klikar, M.; Pytela, O.; Mikysek, T.; Almonasy, N.; Ludwig, M.; Giannetas, V.; Fakis, M.; Bureš, F. RSC Adv. 2016, 6, 12819-12828.
ILC2
