Face-to-Face Structures Formed by 3D Hydrogen-Bonded Networks of Tris(4-carboxyphenyl)cyclotriguaiacylene.

A novel tris(4-carboxyphenyl)cyclotriguaiacylene 2 was synthesized by hydrolysis of a novel tris[(4-(methoxycarbonyl)phenyl]cyclotriguaiacylene. The structure was determined by H NMR, C NMR and mass spectroscopic techniques. The crystal structure of 2 was shown by X-ray crystallography to have a face-to-face structure of a pair of molecules of 2. The structure was constructed from 3D hydrogen-bonded network structure. Graphical Abstract: [Figure not available: see fulltext.][Figure not available: see fulltext.]. [ABSTRACT FROM AUTHOR]