Abstract
The structure and properties of nickelabenzene complex were examined by the Modified Perdew-Wang Exchange and Correlation method (mpw1pw91). The para-substitutions effect on the structure, frontier orbital energies, aromaticity and electronic spectra has been studied. Nucleus independent chemical shift (NICS) values show that these species are aromatic. Time dependent density functional theory (TD-DFT) was used to calculate the energy, oscillator strength and absorption maxima wavelength (λmax) of various electronic transitions and their nature within molecules.
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