R. Beyers, C.-H. Kiang, et al.
Nature
Paper
Evidence for a nonclassical structure of a 1,6-methano[10]annulene: A cryogenic13C CPMAS NMR study of the 11,11-dimethyl derivative
Abstract
High-resolution 13C NMR spectra obtained using cryogenic CPMAS methodology at temperatures as low as 10 K suggest that the structure of 11,11-dimethyl-1,6-methano[10]annulene is nonclassical. © 1994 American Chemical Society.
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