Supramolecular graphyne: a C(sp)-H⋯N hydrogen-bonded unique network structure of 2,4,6-triethynyl-1,3,5-triazine

The crystallization of 2,4,6-triethynyl-1,3,5-triazine (2) leads to a π-stacked layered structure of a C(sp)–H⋯N hydrogen-bonded unique hexagonal network structure, which may be regarded as a supramolecular analogue of a hitherto unknown graphyne network: in-plane intermolecular interactions are short and linear H⋯N contacts (2.31 and 2.34 Å) and the interlayer separation is 3.23 Å.