%0 Journal Article
%T A semi-empirical estimation of ground and excited state dipole moments of zinc phthalocyanine from solvatochromic shift data
%A Abimbola Ogunsipe
%J -
%D 2018
%R 10.14419/ijac.v6i2.11019
%X A semi-empirical determination of ground and excited state dipole moments of zinc phthalocyanine (ZnPc) from solvatochromic shifts is hereby presented. The ratio of the excited- and ground-state dipole moments of ZnPc ( ) was estimated by a combination of the Bakshiev and the Kawski-Chamma-Viallet¡¯s equations, while the difference in the excited- and ground-state dipole moments (Dm) was estimated usingthe molecular-microscopic solvent polarity parameters ( ), alongside the Stokes¡¯ shifts (D£¿) in the various solvents. The dipole moment of ZnPc is significantly higher in the excited singlet state (me = 3.12 D) than in the ground state (mg = 1.50 D). Obviously charge separation is greater in the excited state of ZnPc than in its ground state.
%U https://www.sciencepubco.com/index.php/IJAC/article/view/11019