Key indicatorsSingle-crystal X-ray study T = 173 K Mean (C-C) = 0.003 Å R factor = 0.040 wR factor = 0.110 Data-to-parameter ratio = 14.4For details of how these key indicators were automatically derived from the article, see
A novel polyoxomolybdate (C 14 H 16 N 2) 3 (C 14 H 17 N 2) 2 [β-Mo 8 O 26 ](1) has been synthesized from hydrothermal reaction of tolidine and molybdenum trioxide in water and characterized by its IR and UV spectra, 1 H NMR, cyclic voltammetry and single crystal X-ray diffraction. Compound 1 crystallizes in the triclinic crystal system, space group Pī, with the crystal cell parameters of a=11.5360 Å, b=11.6080 Å, c=15.2520 Å, α=72.50 • , β=79.46 • , γ =86.91 • , V =1915.00 Å 3 and Z=1. The asymmetric unit of the crystal structure of (C 14 H 16 N 2) 3 (C 14 H 17 N 2) 2 [β-Mo 8 O 26 ] contains β-octamolybdate [β-Mo 8 O 26 ] 4− anions, two tolidine molecules and shows the presence of monoprotonated tolidine cations. One tolidine molecule and a β-Mo 8 O 26 polyanions species lie across crystallographic inversion centres while the two tolidine molecules occupy general sites.
The structure of the title compound, (C(10)H(12)N(2))[SnF(3)](2), is made up of alternating layers of cations and anions, where the anion layers form extended polymeric sheets through a series of secondary Sn...F bonds. Strong N-H...F hydrogen bonds crosslink adjacent cation and anion layers, thereby building a three-dimensional network.
In the title compound, (C4H8N3O)2[CdCl4], the asymmetric unit comprises two creatininium cations and one tetrachloridocadmate anion. Cd⋯O secondary bonding links one of the two imidazole rings and the anion into ion pairs. The free and bound cations form layers between which the [CdCl4]2− anions are sandwiched. The CdII atom adopts a distorted trigonal-bipyramidal geometry in which the Cd⋯O bond is axial. Intermolecular N—H⋯Cl hydrogen bonds form a two-dimensional network parallel to (001) which ensures the junction between creatininium cations and [CdCl4]2− anions.
The title compound, [Cu(C11H11N4O2)2], was prepared by solvothermal synthesis using 2-amino-5-(4-methoxyphenyl)-1,3,4-oxadiazole and copper sulfate pentahydrate in an acetonitrile solution. The CuII atom lies on an inversion center and is four-coordinated in a slightly distorted square-planar geometry by four N atoms of the ligands obtained from the formation of a bond between the amine N atom of the oxadiazole molecule and the nitrile C atom of the solvent. In the crystal structure an intermolecular N—H⋯N hydrogen bond links inversion-related molecules.
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