Özet:

In this study, the synthesis of bisisoxaoline derivative of norbornadien from heterocyclic compounds was performed via 1,3-dipolar cycloaddition reaction, the structural properties of derivative characterized by spectroscopic analysis such as FT-IR, 1H-NMR, 13C-NMR, UV-Vis and the single-crystal X-ray diffraction technique. The 3,7-bis(4-(tert-butyl)phenyl)-3a,4,4a,7a,8,8a-hexahydro-4,8-methanobenzo[1,2-d:4,5-d’]diisoxazole compound was optimized using Density Functional Theory (DFT/B3LYP) method with 6-311G(d,p) basis set in the ground state and the geometric parameters compared with single-crystal X-ray diffraction technique. The compound crystallizes in the monoclinic space group C2/c with a = 20.634(4) Å, b = 11.179(2) Å, c = 11.0690(17) Å and Z = 4 unit cell parameters. Also, the spectral results were examined with calculated vibrational frequencies, 1H-NMR, 13C-NMR chemical shift values and absorption wavelengths, theoretically. The energetic behaviour of the compound in different solvent media was examined with TD-DFT/B3LYP method and 6-311G(d,p) basis set using the Conductor Polarizable Continuum Model (CPCM). The frontier molecular orbitals (FMOs), molecular electrostatic potential (MEP) and electronic structure parameters (dipole moment, electronegativity, chemical hardness-softness, ionization potential, electron affinity, etc.) were examined to get information about the chemical stability of the structure. 

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