4-(Diphenyl-amino)-benzaldehyde 4-phenyl-thio-semicarbazone.
The title mol-ecule, C(26)H(22)N(4)S, is composed of three main parts, viz. a triphenyl-amine group is connected to a phenyl ring by a thio-semicarbazone moiety. The C= N double bond has an E conformation. The crystal packing is dominated by strong hydrogen bonds through the thio-semicarbazone moiety, with pairs of N-H⋯S hydrogen bonds linking the mol-ecules to form inversion dimers with an R(2) (2)(8) ring motif. An intra-molecular N-H⋯N hydrogen bond is also present, generating an S(5) ring motif. Although the structure contains four phenyl rings, π-π stacking inter-actions are not formed between them, probably due to the conformation adopted by the triphenyl-amine group. However, a weak π-π stacking inter-action is observed between the phenyl ring and the delocalized thio-semicarbazone moiety.
Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo - CINN, C/ Julián Clavería, 8, 33006 Oviedo,  Spain.
Rafael
R
Mendoza-Meroño
Laura
L
Menéndez-Taboada
Santiago
S
García-Granda