Answers are grounded in this paper and cite their sources.
The molecular dimensions determined are very similar to those found previously for the related hydrocarbon 1,3,5-triphenylbenzene, but the conformations of the two molecules differ. The phenylrings in the hydrocarbon adopt a propeller-like arrangement, while in the boroxin they are nearly coplanar with the central 8303 ring. Possible relationships between thermal-motion descriptions and the intramolecular potential-energy surfaces for these two compounds are considered.
No takes yet. Share an insight, caveat, or question.
Brock et al. (1987) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: