Cross-conjugated compounds: microwave spectrum and ring planarity of 3-methylene-1,4-cyclohexadiene

Article abstract of DOI:10.1016/0022-2860(93)07928-P

The unstable 3-methylene-1,4-cyclohexadiene, an isomer of toluene, has been prepared from benzoic acid.The hydrocarbon can be handled quite easily in the solid state, and in the gas phase at low pressures.Rotational transitions have been measured from 12