4,991 research outputs found
Bis(acetato-κ2 O,O′)bis(2-aminopyridine-κN)nickel(II)
The title complex, [Ni(C2H3O2)2(C5H6N2)2], has a distorted octahedral geometry around the Ni atom. Intermolecular and intramolecular N—H⋯O hydrogen bonds exist in the crystal structure
Bis[aqua(2,3-naphtho-15-crown-5)sodium] tetrakis(thiocyanato-κN)cobaltate(II)
The title complex, [Na(C18H22O5)(H2O)]2[Co(NCS)4], consists of two aqua(2,3-naphtho-15-crown-5)sodium complex cations and one [Co(NCS)4]2− complex anion, which has crystallographic symmetry. In the anion, the CoII centre is coordinated by the N atoms of four NCS− ligands in a distorted tetrahedral geometry. In the complex cations, the NaI centre is coordinated by five O atoms of the 2,3-naphtho-15-crown-5 ligand and one water O atom. The complex molecules form a two-dimensional network via weak O—H⋯S interactions between adjacent cations and anion
N-[4-(Dimethylamino)benzylidene]-4-ethoxyaniline
In the title compound, C17H20N2O, the molecular core is planar, with a central C—N=C—C torsion angle of −179.3 (3)°. However, the overall geometry is not planar, with a dihedral angle of 61.96 (1)° between the two benzene rings, which adopt a trans configuration with respect to the C=N bond [1.269 (4) Å]. The bond lengths and angles are within normal range
Aquabis(o-vanillinato-κ2 O,O′)nickel(II)
The NiII atom in the title complex, aquabis(2-formyl-6-methoxyphenolato-κ2
O,O′)nickel(II), [Ni(C8H7O3)2(H2O)], is five-coordinated by four O atoms from two o-vanillinate ligands and one water molecule in a slightly distorted square-pyramidal geometry (τ = 0.06). In the crystal structure, the molecules are linked into dimers by intermolecular O—H⋯O hydrogen bonds
Dichloridooctakis(2-chlorobenzyl)di-μ2-hydroxido-di-μ3-oxido-tetratin(IV)
The title tetranuclear SnIV compound, [Sn4(C7H6Cl)8Cl2O2(OH)2], has site symmetry . Two O2− and two OH− anions bridge four SnIV cations to form the tetranuclear compound. The two independent SnIV cations assume SnO3C2 and SnO2C2Cl distorted trigonal-bipyramidal coordination geometries. Intramolecular O—H⋯Cl hydrogen bonding is present in the structure. One Cl atom of a chlorobenzyl ligand is disordered over two sites with an occupancy ratio of 0.693 (2):0.307 (2)
Bis[μ-4-amino-3,5-bis(hydroxymethyl)-1,2,4-triazole]bis{bis[4-amino-3,5-bis(hydroxymethyl)-1,2,4-triazole]nickel(II)} tetranitrate methanol disolvate
The title complex, [Ni2(C4H8N4O2)6](NO3)4·2CH4O, contains a centrosymmetric binuclear nickel(II) complex bridged by a pair of 4-amino-3,5-bis(hydroxymethyl)-1,2,4-triazole ligands. The separation between the NiII atoms is 3.962 (1) Å. The Ni atoms are in a slightly distorted octahedral coordination. Intermolecular N—H⋯O, N—H⋯N and O—H⋯O hydrogen bonds connect the ligands, solvent molecules and nitrate ions
(Methanolato)(pyridine)[N 2,N 2′-(pyridine-2,6-diyldicarbonyl)diacetohydrazide(2–)]iron(III) methanol solvate
In the title complex, [Fe(C11H10N5O4)(CH3O)(C5H5N)]·CH4O, the FeIII ion has a distorted pentagonal-bipyramidal geometry. In the crystal structure, molecules are linked into one-dimensional chains along [1
] via intermolecular O—H⋯O and N—H⋯O hydrogen bonds
Numerical Analysis of Internal Flow Field of Multi-Blade Centrifugal Fan for Floor Standing Air-Conditioner
4-Ethoxy-N-(3-phenylprop-2-enylidene)aniline
The title compound, C17H17NO, was prepared by the condensation of cinnamaldehyde with p-phenetidine in ethanol. The prop-2-enylidene group exhibits an E configuration at the N=C and C=C double bonds, with C—N—C—C and C—C—C—C torsion angles of −179.9 (3) and −175.9 (3)°, respectively. The prop-2-enylidene group is not strictly planar [maximum deviation = 0.054 (4) Å] and forms dihedral angles of 28.0 (3) and 34.9 (3)° with the attached aromatic rings
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