Answers are grounded in this paper and cite their sources.
The trigonal symmetry of trimesic acid (1,3,5-benzenetricarboxylic acid) [H3TMA] is exploited in the generation of honeycomb grid solids that eschew interpenetration. The structures of [N,N-dicyclohexylammonium]3[TMA]· xMeOH and [N,N-dimethylammonium]12[H3TMA] · [H2TMA−]3 · [HTMA2−]3·[TMA3−] reveal, relative to H3TMA, expanded and contracted honeycomb grids having internal cavities with effective diameters of 12.7 and 10.4 Å, respectively.
No takes yet. Share an insight, caveat, or question.
Meléndez et al. (1996) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: