Stereochemical consequences of dynamic gearing in substituted bis(9-triptycyl) methanes and related molecules

Empirical force-field calculations show that bis(9-triptycyl)methane has a C(s) ground state and that the securely meshed triptycyl groups undergo nearly unhindered cogwheel rotation through a C(2) transition state, with an activation energy of ≈1.0 kcal mol(-1). These features lead to note-worthy s...

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Publié dans:	Proc Natl Acad Sci U S A
Auteurs principaux:	Hounshell, W. Douglas, Johnson, Constance A., Guenzi, Alberto, Cozzi, Franco, Mislow, Kurt
Format:	Artigo
Langue:	Inglês
Publié:	National Academy of Sciences 1980
Sujets:	Physical Sciences: Chemistry
Accès en ligne:	https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC350419/ https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/16592927/ https://ncbi.nlm.nih.govhttps://doi.org/10.1073/pnas.77.12.6961
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