title: 2-(2,4-Dichloro-phen-oxy-meth-yl)-5-(4-methyl-phen-yl)imidazo[2,1-b][1,3,4]thia-diazole.
abstract: In the title compound, C18H13Cl2N3OS, the eight atoms comprising the central imidazo/thia-diazo-lethia-diazole residue are coplanar (r.m.s. deviation = 0.009 Å). The dihedral angle of 8.72 (13)° between the dichloro-benzene and tolyl rings reflects a twist about the O-C(benzene) bond; the Cm-O-Cb-Cb torsion angle = -168.5 (2)° (m = methyl-ene C and b is benzene C). Supra-molecular tapes along the b axis are found in the crystal structure which are mediated by π-π inter-actions occurring between centrosymmetrically related thia-diazole rings [inter-ring centroid distance = 3.6907 (16) Å] and between the benzene and tolyl rings [inter-ring centroid distance = 3.7597 (16) Å].
authors.affiliation: Applied Organic Chemistry Department, National Research Centre, Dokki, 12622 Giza, Egypt.
authors.forename: Bakr F
authors.initials: BF
authors.lastname: Abdel-Wahab
authors.forename: Hanan A
authors.initials: HA
authors.lastname: Mohamed
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink