DFT and TD-DFT study of adsorption behavior of Zejula drug on surface of the B12N12 nanocluster

Abstract

The adsorption of the Zejula drug on the surface of B12N12 nanocluster has studied using DFT and TD-DFT. The quantum calculations have performed at the M062X/6–311 + + G(d,p) level of theory in the solvent water. The adsorption of the Zejula from N13 atom on the B12N12 leads to the higher electrical conductivity due to the low Eg rather. The change of DM also displays a charge transfer between Zejula and nanocluster. The UV absorption and IR spectra were calculated. The adsorption of Zejula drug over B12N12 nanocluster in the complexes Zejula/B12N12 can be considered as a bathochromic shift. According to QTAIM analysis, -G(r)/V(r) values for B-O and B-N bonds confirming the electrostatic and partial covalent character. The values of LOL and ELF confirm that the interactions are dominated by electrostatic interaction contributions. The calculated data reveal the B12N12 nanocluster can be appropriate as a biomedical system for the delivery of Zejula drug.