Year: 1995
Type: article
Abstract: The infrared (IR) spectrum of solid ${\mathrm{C}}_{60}$ exhibits many weak vibrational modes. Symmetry breaking due to $^{13}\mathrm{C}$ isotopes provides a possible route for optically activating IR-silent vibrational modes. Experimental spectra and a semiempirical theory on natural abundance and $^{13}\mathrm{enriched}$ single crystals of ${\mathrm{C}}_{60}$ are presented. By comparing the experimental results with the theoretical results, we exclude this isotopic activation mechanism from the explanation for weakly active fundamentals in the spectra.
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2089938697
