Computational Study of Doping in Dopamine with Halogens to Control Optical and Spectroscopic Properties

Ibrahim Isah Nasidi; Cahit Orek; Abdul Majid; Sayed M Eldin; Omer Kaygili; Niyazi Bulut

doi:10.1021/acsomega.3c01946

Computational Study of Doping in Dopamine with Halogens to Control Optical and Spectroscopic Properties

ACS Omega. 2023 May 26;8(23):21074-21082. doi: 10.1021/acsomega.3c01946. eCollection 2023 Jun 13.

Authors

Ibrahim Isah Nasidi¹, Cahit Orek^{1

2}, Abdul Majid³, Sayed M Eldin⁴, Omer Kaygili¹, Niyazi Bulut¹

Affiliations

¹ Department of Physics, Faculty of Science, Firat University, Elazig 23119, Turkey.
² Research and Application Center, Kastamonu University, Kastamonu 37100, Turkey.
³ Department of Physics, University of Gujrat, Gujrat 50700, Pakistan.
⁴ Faculty of Engineering, Future University in Egypt New Cairo 11835, Egypt.

Abstract

In this research, a comprehensive study of dopamine was conducted using the theoretical first principles method due to its crucial importance as a hormone for the neurotransmission process in the animal body. Many basis sets and functionals were used for optimization of the compound to attain stability and find the appropriate energy point for the overall calculations. Then, the compound was doped with the first three members of the halogen family (fluorine, chlorine, and bromine) to analyze the effect of their presence in terms of change in their electronic properties, such as band gap and density of states, and spectroscopic parameters, such as nuclear magnetic resonance and Fourier transform infrared. It was found that the band gap of the system changes depending on the doping of halogens.