الفهرس 
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Abstract
In this thesis we used the DFT (PBE0, M06-HF, CAM-B3LYP and ωB97XD), TD-DFT and C-PCM quantum chemical methods combined with 6-31G and 6-311G basis sets to calculate the ground state properties, optimum molecular geometries, optical and spectroscopic properties of free complex organic dyes and its charge transfer properties.