The structures ofN,N′-bis(2-methylphenyl)-2,2′-thiodibenzamide, C28H24N2O2S, (Ia),N,N′-bis(2-ethylphenyl)-2,2′-thiodibenzamide, C30H28N2O2S, (Ib), andN,N′-bis(2-bromophenyl)-2,2′-thiodibenzamide, C26H18Br2N2O2S, (Ic), are compared with each other. For the 19 atoms of the consistent thiodibenzamide core, the r.m.s. deviations of the molecules in pairs are 0.29, 0.90 and 0.80 Å for (Ia)/(Ib), (Ia)/(Ic) and (Ib)/(Ic), respectively. The conformations of the central parts of molecules (Ia) and (Ib) are similar due to an intramolecular N—H...O hydrogen-bonding interaction. The molecules of (Ia) are further linked into infinite chains along thecaxis by intermolecular N—H...O interactions, whereas the molecules of (Ib) are linked into chains alongbby an intermolecular N—H...π contact. The conformation of (Ic) is quite different from those of (Ia) and (Ib), since there is no intramolecular N—H...O hydrogen bond, but instead there is a possible intramolecular N—H...Br hydrogen bond. The molecules are linked into chains alongcby intermolecular N—H...O hydrogen bonds.
N,N′-双(2-甲基苯基)-2,2′-硫代苯甲酰胺,C28H24N2O2S,(Ia)、N,N′-双(2-乙基苯基)-2,2′-硫代苯甲酰胺C30H28N2O2S,(Ib) 和 N,N′-双(2-溴苯基)-2,2′-硫代苯甲酰胺,C26H18Br2N2O2S,(Ic) 相互比较。就一致的硫代苯甲酰胺核心的 19 个原子而言,(Ia)/(Ib)、(Ia)/(Ic) 和 (Ib)/(Ic) 成对分子的 r.m.s. 偏差分别为 0.29、0.90 和 0.80 Å。由于分子内 N-H...O 氢键的相互作用,(Ia)和(Ib)分子中心部分的构象相似。(Ia) 分子通过分子间 N-H...O 相互作用进一步沿轴向连接成无限链,而 (Ib) 分子则通过分子间 N-H...π 接触沿轴向连接成链。(Ic)的构象与(Ia)和(Ib)截然不同,因为没有分子内的 N-H...O 氢键,而可能存在分子内的 N-H...Br 氢键。分子通过分子间 N-H...O 氢键连接成链。