Microwave Spectrum of 2-Methylfuran

Abstract
The pure rotational spectrum of 2‐methylfuran has been measured in the range 12 000–33 000 MHz. Analysis, using a fourth‐order perturbation treatment, of internal rotation A–E doublet splittings gives a barrier of 1190 cal/mole. The spectrum for an excited vibrational state has been assigned, and exhibits essentially the same internal barrier.
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