Artyom A Osipov, Sergey A Nayfert, Sergey A Sobalev, Kanthapazham Rajakumar, Dmitry A Zherebtsov, Dar'ya V Spiridonova, Denis A Vinnik
The syntheses and structures of dimethyl [11 ,21 :24 ,31 -terphenyl]-14 ,34 -dicarboxylate (1), dimethyl 22 ,25 -diiodo[11 ,21 :24 ,31 -terphenyl]-14 ,34 -dicarboxylate (2), potassium [11 ,21 :24 ,31 -terphenyl]-14 ,34 -dicarboxylate (3) and dimethyl [1,1'-biphenyl]-4,4'-dicarboxylate (4) are reported. Neighboring phenyl rings in compounds 1, 3 and 4 have a planar structure (torsion angles are 0.6-4.1°) and the molecules are packed into regular layers. In the structure of the iodinated derivative of terphenyldicarboxylic acid (2), the middle benzene ring of the terphenyl fragment is rotated relative to the other rings by 64° due to the repulsion between the protons and the iodine atoms of neighboring rings...
April 1, 2024: Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials