Electronic Properties of a New Photosensitizer-Dye Derived from a Cadmium Selenide Mediated Retinoid/Carotenoid-Based Complexes of Rhenium (I)

Authors

Fred M. Schertz II, Fort Hays State UniversityFollow
Runfan Yang, Fort Hays State UniversityFollow
Amelia Richter, Fort Hays State UniversityFollow

Award Level

3rd Place - Empirical Undergraduate

Classification

Empirical Undergraduate

Abstract

Two new inorganic-based photosensitizer dyes of rhenium(I) attached to retinoid/carotenoid ligands have been synthesized. All ligands were prepared via Knoevenagel condensation reactions of all-trans-retinal (1) and β-apo-8’- carotenal with cyanopyridyl. Electronic UV/Visible absorption spectroscopy shows that these complexes absorb visible light efficiently. Absorption wavelengths are in the 450 nm to 600 nm range. Density Functional Theory (DFT) calculations reveal that the frontier molecular orbitals involved during absorption process occur from the HOMO (highest occupied molecular orbital) to low-energy LUMOs (lowest unoccupied molecular orbital) of the Re metal center. Theoretical treatments also show that these orbitals are located primarily on the polyene chain and the energy gap between them is consistent with the observed optical spectrum. The photosensitizer complexes will be attached to cadmium selenide (CdSe) nanoparticles for enhanced photosensitization.

Faculty Advisor

Dr. Arvin J. Cruz

Department/Program

Chemistry

Submission Type

in-person poster

DOI

10.58809/RKHJ1291

Date

4-17-2018

Rights

Copyright the Author(s)

Comments

For questions contact ScholarsRepository@fhsu.edu

Recommended Citation

Schertz, Fred M. II; Yang, Runfan; and Richter, Amelia (2018) "Electronic Properties of a New Photosensitizer-Dye Derived from a Cadmium Selenide Mediated Retinoid/Carotenoid-Based Complexes of Rhenium (I)," SACAD: John Heinrichs Scholarly and Creative Activity Days: Vol. 2018, Article 2.
DOI: 10.58809/RKHJ1291
Available at: https://scholars.fhsu.edu/sacad/vol2018/iss2018/2