The reflectance spectra of [SMe3][Ni(dmit)2(dmit = 1,3-dithiole-2 thione-4,5-dithiolato), quarter-filled organic conductor with strongly dimerized structure, will be discussed in the framework of the new Raman results for this compound. The spectra are interpreted on the basis of a dimerized Hubbard octamer model, which accounts for the low energy electronic transitions and for the coupling of the electronic excitations with the intramolecular vibrations.
Pokhodnya, K. I., Cassoux, P., Feltre, L., & Meneghetti, M. (1999). Optical excitations in a quarter-filled Ni(dmit)2based compound described by a dimerized octamer model. Synthetic Metals, 103(1–3), 2187. https://doi.org/10.1016/S0379-6779(98)00860-1