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

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