{[Mu-N,N '-Bis(Salicylidene)-1,3-Propanediaminato-N,N '-Dimethylformamide]Zinc(Ii)}Dichlorozinc(Ii)

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Split Sea And Walls Of Water: Moses' Phenomenon At The Izmit Earthquake, Turkey

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Bis{2-[(3-Aminopropyl)Iminomethyl]-4,6-Dinitrophenolato-O,N,N'}Nickel(II)

The title compound, [Ni(C10H11N4O5)(2)], contains asymmetric Schiff base ligands, The coordination sphere around the Ni atom is a distorted octahedron, with an average Ni-O distance of 2.072 (2) Angstrom and Ni-N distances ranging from 2.059 (2) to 2.084 (3) Angstrom, Bond angles at the Ni atom have values between 83.80 (9) and 96.93 (9)degrees, The structure is stabilized through an intermolecular hydrogen-bonding network.WoSScopu

Structural Investigations Of Benzo[C]Cinnoline Derivatives .1. Structures Of 1-Piperidinobenzo[C]Cinnoline And 3-Piperidinobenzo[C]Cinnoline

(1) C17H17N3, M(r) = 263.34, monoclinic, P2(1)/c, a = 8.473 (3), b = 11.556 (4), c = 13.933 (6) angstrom, beta = 92.09 (3)-degrees, V = 1363.3 (3) angstrom-3, Z = 4, D(m) = 1.27, D(x) = 1.283 g cm-3, lambda-(Cu K-alpha) = 1.54180 angstrom, mu = 5.689 cm-1, F(000) = 560, T = 293 K, R = 0.070 for 1701 observed reflections [I less-than-or-equal-to 3-sigma-(I)]. (2) C-17H17N3, M(r) = 263.34, triclinic, P1BAR, a = 8.646 (3), b = 13.064 (4), c = 13.338 (4) angstrom, alpha = 100.91 (3), beta = 99.50 (3), gamma = 106.03 (3)-degrees, V = 1383.5 (4) angstrom 3, Z = 4, D(m) = 1.25, D(x) = 1.264 g cm-3, lambda-(Cu K-alpha) = 1.54180 angstrom, mu = 5.606 cm-1, F(000) = 560, T = 293 K, R = 0.059 for 2040 observed reflections [I greater-than-or-equal-to 3-sigma-(I)]. The rings in the benzo[c]cinnoline skeleton of (1) and (2) are close to planar, while the skeleton itself is non-planar. The dihedral angles between the rings in the benzo[c]cinnoline skeleton are between 6.59 (6) and 14.32 (6)-degrees in (1) and between 1.0 (1) and 3.4 (1)-degrees in the more planar (2). The difference is caused by steric interactions between the piperidino and benzo[c]cinnoline groups in (1). These interactions also cause the piperidino group in (1) to rotate out of the plane of the benzo[c]cinnoline group, while in (2) the whole molecule is close to planar. The piperidino group adopts a slightly distorted chair conformation in both (1) and (2).Wo

Bis{(Mu-Nitrato)[Mu-Bis(Salicylidene)-1,3-Propanediaminato] Copper(II)}Zinc(II)

The title compound, [Zn{Cu(NO3)(C17H16N2O2)}(2)], has the central Zn2+ ion located on an inversion centre, with four bridging O atoms from two N,N'-bis(salicylidene)-1,3-propanediaminate (SALPD(2-)) ligands and one O atom from each bridging nitrate group as nearest neighbours. This arrangement constitutes a distorted octahedral coordination around the Zn2+ ion. The inversion-related terminal Cu2+ ions have irregular square-pyramidal coordinations involving two. O and two N atoms of a SALPD(2-) ligand and one O atom from a nitrate group in the axial position. The Zn-Cu pairs are triple bridged by the SALPD(2-) O atoms and by the O-N-O atoms of the nitrate groups. The Zn Cu bridging distance is 3.0017 (6) Angstrom

Structure Of Exo,Exo-9,10,12-Tribromotricyclo[6.3.1.02,7]Dodeca-2(7),3,5,10-Tetraene

C12H9Br3, M(r) = 392.915, orthorhombic, P2(1)2(1)2(1), a = 6.979 (4), b = 9.596 (1), c = 18.056 (4) angstrom, V = 1209.22 angstrom 3, Z = 4, D(m) = 2.1, D(x) = 2.158 g cm-3, lambda(Cu K-alpha) = 1.54180 angstrom, mu(Cu K-alpha) = 122.24 cm-1, F(000) = 744, T = 293 K, R = 0.044 for 1254 observed reflections. In the title compound, the Br(1)-C(12) [1.966 (9) angstrom] and Br(3)-C(9) [1.971 (7) angstrom] distances are almost equal but Br(2)-C(10) [1.892 (7) angstrom] is shorter. The structural analysis has revealed that the starting compound, 9-bromotricyclo[6.2.2.0(2,7)]dodeca-2(7),3,5,9,11-pentaene, a [2.2.2] system, has rearranged to the title compound, a [3.2.1] system, via an aryl shift.Wo

Crystal Structure Of Tris-(N-Salicylidene-Benzylamino)Cobalt(III), C42H36N3O3Co

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