UV-vis Analysis of 1st Row Transition Metal “Sunscreen” Complexes

Presenter(s)

Kelsey Sterud, Elle Lind, Bailey Sommerville, McKenna Stocker, and Tristan Waldron

Abstract

Tris(β-diketonate) complexes of chromium(III), iron(III), cobalt(III) were analyzed by UV-vis spectroscopy. These complexes have been targeted for their potential application as sensitizers for solar cells and thus exact absorbance profiles have been sought to correlate their relative performance in this application. Strongly absorbing π-system ligands, avobenzone and oxybenzone, promote absorbance in the UV coupled with LMCT transitions due to the ligand-metal interaction. Comparisons of experimental and computationally generated absorbance spectra have also been made.

College

College of Science & Engineering

Department

Chemistry

Campus

Winona

First Advisor/Mentor

Joseph West

Location

Kryzsko Great River Ballroom, Winona, Minnesota; United States

Start Date

4-23-2026 1:00 PM

End Date

4-23-2026 2:00 PM

Presentation Type

Poster Session

Format of Presentation or Performance

In-Person

Session

2a=1pm-2pm

Poster Number

61

Comments

Sterud, Kelsey; Lind, Elleana J; Sommerville, Bailey; Stocker, McKenna L; Waldron, Tristan

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Apr 23rd, 1:00 PM Apr 23rd, 2:00 PM

UV-vis Analysis of 1st Row Transition Metal “Sunscreen” Complexes

Kryzsko Great River Ballroom, Winona, Minnesota; United States

Tris(β-diketonate) complexes of chromium(III), iron(III), cobalt(III) were analyzed by UV-vis spectroscopy. These complexes have been targeted for their potential application as sensitizers for solar cells and thus exact absorbance profiles have been sought to correlate their relative performance in this application. Strongly absorbing π-system ligands, avobenzone and oxybenzone, promote absorbance in the UV coupled with LMCT transitions due to the ligand-metal interaction. Comparisons of experimental and computationally generated absorbance spectra have also been made.