Özet:

In this study, the 2-chloro-1-(6-flouro-3,4-dihydro-2H-chromen-2yl)ethanone molecule which was synthesized and whose structure was illuminated by X-ray diffraction method in previously study was determined by chemical activity, second order nonlinear optical properties and interactions with DNA bases were investigated. Density functional theory was chosen as the theoretical method because of it is significant values close to experimental and its computational cost. There is no imaginary frequencies was observed as a result of the frequency calculations also supported the optimized structure and thus other properties were obtained and interpreted from the optimized structure. The stable molecular geometry of the studied molecule was obtained by optimization. DFT/B3LYP/6-311++G(d,p) bases set was used in all theoretical calculations. It was seen that the geometric parameter values of the optimized molecule were compatible with the experimental data and thus other properties obtained through the optimized structure were calculated and interpreted. In the calculation of the chemical activity of the molecule, hardness, softness and other chemical activity parameters were obtained by frontier molecular orbital (HOMO, LUMO) energies. Molecular electrostatic potential (MEP), charge population and Fukui functional analaysis was determined in which regions the structure is susceptible to chemical interactions. Inaddition to these, molecular interactions, Hirshfeld surface maps, interaction percentages of atoms with each other (2D-finger print) were examined by Hirshfeld surface analysis.

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