Synthesis and Optical Properties of Chromophores Containing Octacyanomethylene Substituted S-Indacene-1,3,5,7(2H,6H)-Tetraone Acceptor Fragment

RTU 59. Studentu zinātniskās un tehniskās konferences tēzes 2018
Arnis Žagata, Kaspars Traskovskis, Valdis Kokars

D-π-A chromophores with octacyanomethylene substituted s-indacene-1,3,5,7 (2H, 6H) -tetraone electron acceptor were synthesized in condensation reactions with indole and aniline based electron donor groups. The initial optical properties were investigated using UV-Vis spectroscopy. The obtained results in CHCl3 solution are following: for the indole donor based chromophore λmax=638 nm, ε=130386 1/(M*cm) and for aniline donor based chromophore: λmax=704 nm, ε=76206 1/(M*cm). The results of quantum chemical calculations revealed that an increase of the length of the π bridge between indacene and electron donor rings reduces the structural deformation of the acceptor moiety, thereby increasing the value of the chromophore absorption coefficient.

Keywords
non-linear optics, molecular glass, tetraone
Hyperlink
https://www.rtu.lv/writable/public_files/RTU_mlkf_studentu_konferences_tezes2018.pdf

Žagata, A., Traskovskis, K., Kokars, V. Synthesis and Optical Properties of Chromophores Containing Octacyanomethylene Substituted S-Indacene-1,3,5,7(2H,6H)-Tetraone Acceptor Fragment. In: RTU 59. Studentu zinātniskās un tehniskās konferences tēzes, Latvia, Rīga, 27-27 April, 2018. Rīga: Rīgas Tehniskā universitāte, 2018, pp.50-50.

Publication language
Latvian (lv)