Rohallah Jamalvandi - Department of Chemistry, Faculty of Science, Arak University, Arak ۳۸۱۵۶-۸-۸۳۴۹, Iran.

In this research at the first Promethazine drug and its fullerene derivative were optimized. NMR calculations for the complexes were carried out at the B۳LYP/۶-۳۱G*quantum chemistry level. Promethazine is not used as an antihistaminic drug for anyone. In the pharmaceutical composition of promethazine (RS) - N, N-dimethyl-۱- (۱۰H-Phenothaiazin-۱۰ yl) -propen-۲-amino, two aromatic rings In this study, halogens are connected to one of their loops and the changes in the type of halogen at the surface * HF / ۶-۳۱G are calculated. The calculations show that, by changing the type of halogen based on the variation of electronegativity of halogens, the aromatase level is as follows increase. R-F> R-Cl> R-Br. The data in tables and graphs and shapes were compared and discussed.

Promethazine, Hallucination Aromatization, Level HF / ۶-۳۱G