2,5-Bis(2-naphthylmethylsulfanyl)-1-thia-3,4 diazacyclopenta-2,5-diene

• Main Authors: How, Fiona Ni Foong, Watkin, David J., Crouse, Karen Anne, Mohamed Tahir, Mohamed Ibrahim
• Format: Article
• Language: English; English
• Published: International Union of Crystallography 2007
• Online Access: http://psasir.upm.edu.my/id/eprint/7509/1/2%2C5-Bis%282-naphthylmethylsulfanyl%29.pdf; http://psasir.upm.edu.my/id/eprint/7509/; http://dx.doi.org/10.1107/S1600536807024257

The title molecule, C24H18N2S3, consists of three essentially planar fragments viz. two methylnaphthalene groups and a five-membered thiadiazole ring. The dihedral angles between the two methylnaphthalene groups and the central 1-thia-3,4-diazacyclopenta-2,5-diene group are 78.9 (1) and 68.8 (1)°. In the crystal structure, - stacking interactions exist between pairs of symmetry-related naphthalene fragments with an interplanar separation of 3.35 Å. All bond lengths and angles are comparable with previous reports except that both C-S bond lengths are slightly longer than normal. In addition, the C-S-C and S-C-C bond angles appear to be smaller than normal and this could be due to the steric hindrance of the methylnaphthalene fragments.