The experimental realization of a neutral homoaromatic carbocycle. Griffiths, P R, Pivonka, D E, & Williams, R V Chemistry - A European Journal, 17(33):9193–9199, 2011. ISBN: 0947-6539
doi  abstract   bibtex   
Infrared spectra recorded for 1,5-dimethyl-2,8:4,6-semibullvalenetetracarboxylic acid dianhydride (12) in the condensed and vapor phase clearly prove that in the vapor phase the dianhydride 12 is a homoaromatic ground state semibullvalene.
@article{griffiths_experimental_2011,
	title = {The experimental realization of a neutral homoaromatic carbocycle},
	volume = {17},
	doi = {DOI 10.1002/chem.201100025},
	abstract = {Infrared spectra recorded for 1,5-dimethyl-2,8:4,6-semibullvalenetetracarboxylic acid dianhydride (12) in the condensed and vapor phase clearly prove that in the vapor phase the dianhydride 12 is a homoaromatic ground state semibullvalene.},
	language = {English},
	number = {33},
	journal = {Chemistry - A European Journal},
	author = {Griffiths, P R and Pivonka, D E and Williams, R V},
	year = {2011},
	note = {ISBN: 0947-6539},
	keywords = {1,5-dimethyl-2,4,6,8-semibullvalenetetracarboxylic, barbaralanes, cope rearrangement, degenerate cope rearrangement, delocalized states, density functional calculations, equilibrium, homoaromaticity, hydrocarbon, ir spectroscopy, nmr-spectroscopy, search, semibullvalenes, substituents, thermochromic semibullvalenes},
	pages = {9193--9199},
}

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