title: Dioxido{4,4',6,6'-tetrabromo-2,2'-[2,2-dimethylpropane-1,3-diylbis(nitrilomethanylylidene)]diphenolato}molyb-denum(VI).
abstract: The asymmetric unit of the title compound, [Mo(C(19)H(16)Br(4)N(2)O(2))O(2)], comprises two mol-ecules. The coordination environments around the Mo(VI) atoms are distorted octa-hedral, defined by two oxide ligands and an N(2)O(2) donor set of the tetra-dentate Schiff base in each mol-ecule. The dihedral angles between the benzene rings in the mol-ecules are 76.2 (3) and 77.7 (3)°. An inter-esting feature of the crystal structure is the presence of Br⋯Br contacts [3.4407 (11), 3.5430 (11) and 3.6492 (10) Å], which are shorter than the sum of the van der Waals radius of Br atoms (3.70 Å). The crystal structure is further stabilized by inter-molcular C-H⋯Br and C-H⋯π inter-actions. The crystal under investigation was twinned by nonmerohedry in a 0.053 (1):0.947 (1) ratio.
authors.affiliation: Department of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran, I. R. of  IRAN.
authors.forename: Hadi
authors.initials: H
authors.lastname: Kargar
authors.forename: Muhammad Nawaz
authors.initials: MN
authors.lastname: Tahir