Answers are grounded in this paper and cite their sources.
The 13C n.m.r. spectrum of triamantane (3) observed at 22.64 and 62.8 MHz is assigned using selective 1H decoupling. Internal strain causing geometrical distortions at the quaternary carbon leads to a non-additive down-field shift of its signal.
No takes yet. Share an insight, caveat, or question.
Dheu et al. (1979) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: