Chlorination of octachlorofulvalene (1) proceeds rapidly at room temperature to give two new CloCllo isomers: decachloro-2, 5-dihydrofulvalene (6) and decachloro-1, 2'- dihydrofulvalene (7) in 40 and 15-20% yields, respectively. The structures of these compounds are deduced from their* SC1 nuclear quadrupole resonance (nqr), their ultraviolet spectra, and their chemistry. 6 and 7 rearrange upon heating or under the ...
