Retinal vibrations in bacteriorhodopsin are mechanically harmonic but electronically anharmonic: evidence from overtone and combination bands
V. A. Lorenz-Fonfria, K. Yagi, S. Ito, H. Kandori
The paper studies retinal vibrations in bacteriorhodopsin using IR and Raman spectroscopy, finding electronic anharmonicity explains overtone band intensities better than mechanical anharmonicity.
bioRxiv · Jul 28, 2021Biophysics