Answers are grounded in this paper and cite their sources.
Unprecedented stability has been observed in terminal aryl hexatriyne and terminal aryl octatetrayne derivatives by judicious choice of a bulky, nonplanar headgroup [viz., 4-(3,6-di- tert-butyl- N-carbazolyl)phenyl] which hinders topochemical intermolecular interactions in the crystal lattice.
No takes yet. Share an insight, caveat, or question.
Wang et al. (2008) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: