Sinusoidal ribbon waves in the crystal structure of bis(4-aminophenyl)disulfide

Abstract

The crystal structure of the compound bis(4-aminophenyl)disulfide was determined by single crystal X-ray crystallography. The S-S distance is 2.074(1) A, and the S-S-C angles are 104.5(1) and 104.7(1)°, respectively. The C-S-S-C torsion angle is 80.2(1)°. In the crystal structure, the disulfide molecules are connected head-to-tail by weak N-H⋯N hydrogen bonding to form a polymeric chain and two such strands are linked by N-H⋯S bonding (S⋯H distance, 2.79(2) Å) to look like sinusoidal ribbon waves when viewed down the c-axis. The N⋯N and N⋯H distances are 3.160(4) and 2.36(2) Å, respectively. © 1998 Elsevier Science Ltd.