F. Nicolaisen, O. Nielsen, M. Vala
Sep 1, 1972
Citations
0
Influential Citations
8
Citations
Journal
Journal of Molecular Structure
Abstract
Abstract Infrared spectra of tetramethylcyclobutane-1,3-dione (TMC) in gas, solution and polycrystalline phases are reported, together with the Raman spectra of TMC in solution, single-crystal, and polycrystalline phases. Analysis of these spectra corroborates the published X-ray crystal structure determination of a C32h space group and is consistent with a D2h symmetry for the free molecule. The infrared gas spectra indicate that the potential for the out-of-plane ring vibration is nearly harmonic.