Study of Photoisomerization in Cis-Retinal as a Natural Photo switch in Vision Using Density Functional Theory
Journal Title: International journal of Advanced Biological and Biomedical Research - Year 2013, Vol 1, Issue 11
Abstract
In the present study, theoretical chemical reactivates Photo isomerization in Cis-Retinal as a Natural Photo switch in Vision. DFT hybrid functional, B3LYP and, post-HF method, were the theoretical methods applied utilizing G09 software. 6-31G+ (d,p) basis set employed for structural optimizations, and single point computations performed using B3LYP/6-31G+(d,p). The isomers cis molecule retinal from 0 to 180 ° in steps of 10 degrees to the trans isomers convert and we calculate the energy in each step, we determined that the most appropriate angle for the conversion of isomers of cis to trans angleï± = 90.11 ï‚° the energy barrier less be.It identified that transmission S0ï‚® S1 is the most likely transmission.
Authors and Affiliations
Seyed Mahdi Seyed Hosseini| Department of Chemistry, Saveh Branch, Islamic azad University, Saveh, Iran, E-mail: mahdi_hosseini22@yahoo.com, Mohammad. Agha Mohammadi| Department of Chemistry, Bourojerd Branch, Islamic Azad University, Bourojerd, Iran, Mohsen Mousavi| Department of Chemistry, Saveh Branch, Islamic azad University, Saveh, Iran
Keywords
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