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organic compounds
In the 1:1 adduct formed by hexamethylenetetramine (HMTA) and 1,1,1-tris(4-hydroxyphenyl)ethane, C6H12N4.C20H18O3, the tris-phenol acts as a triple donor of hydrogen bonds of type O-HN and the HMTA as a triple acceptor of such hydrogen bonds, with ON distances of 2.777 (4), 2.781 (4) and 2.795 (4) Å. The components are assembled into infinite nets comprising hexagonal rings and pairs of such nets are interwoven; the pairs of interwoven nets are, in addition, connected by C-HO hydrogen bonds with CO distance 3.339 (5) Å.