The crystal structures of 1,4-diethynylbenzene 1 and 1,3,5-triethynylbenzene 2 show similar packing principles with CH···π (triple bond)-zigzag networks; surprisingly, the packing motif of ethynylbenzene 3 is quite different.
No takes yet. Share an insight, caveat, or question.
Weiß et al. (1997) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: