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Bis(2-eth-oxy-6-formyl-phenolato-κO,O)nickel(II).

ABSTRACT: The title compound, [Ni(C(9)H(9)O(3))(2)], was synthesized by the reaction of 3-ethoxy-salicylaldehyde with nickel(II) nitrate in methanol solution. The asymmetric unit onsists of two half-molecules; each Ni atom lies on a centre of symmetry. The Ni(II) ions are coordinated by four O atoms from two deprotonated 3-ethoxy-salicylaldehyde ligands in a slightly distorted square-planar coordination environment.

SUBMITTER: Han ZQ

PROVIDER: S-EPMC2960901 | biostudies-literature | 2008 Mar

REPOSITORIES: biostudies-literature

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Bis(2-eth-oxy-6-formyl-phenolato-κO,O)nickel(II).

Han Zhen-Quan ZQ

Acta crystallographica. Section E, Structure reports online 20080329 Pt 4

The title compound, [Ni(C(9)H(9)O(3))(2)], was synthesized by the reaction of 3-ethoxy-salicylaldehyde with nickel(II) nitrate in methanol solution. The asymmetric unit onsists of two half-molecules; each Ni atom lies on a centre of symmetry. The Ni(II) ions are coordinated by four O atoms from two deprotonated 3-ethoxy-salicylaldehyde ligands in a slightly distorted square-planar coordination environment. ...[more]

PMID: 21202039

Similar Datasets

Redetermination of bis-(2-formyl-phenolato-κO,O')nickel(II) as bis-[2-(imino-meth-yl)phenolato-κN,O']nickel(II).

Project description:The crystal structure of bis-(2-formyl-phenolato-κ(2)O,O')nickel(II), [Ni(C(7)H(5)O(2))(2)], a square-planar centrosymmetric complex, has been reported previously [Li & Chen (2006). Acta Cryst. E62, m1038-m1039]. However, a number of warning signs allows the assumption that the carbonyl group in the salicylaldehydate ligand of the claimed complex is incorrect. The crystal structure was therefore redetermined on basis of the originally deposited structure factors. After substituting the carbonyl O atom by an N atom, the model can be completed with an imine H atom, which was clearly discernible in a difference map. The resulting model, corresponding to bis-[2-(imino-meth-yl)phenolato-κ(2)N,O']nickel(II), [Ni(C(7)H(6)NO)(2)], converges well and none of the previous structural alerts remains. This reinter-pretation is also consistent with the published synthesis, which was carried out using salicylaldehyde in the presence of aqueous NH(3). The reinter-preted structure is virtually identical to earlier reports dealing with this bis-iminato Ni(II) complex.

| S-EPMC2979995 | biostudies-literature

Bis[2-(benzyl-amino)-pyridine-κN]bis-(2-formyl-phenolato-κO,O')nickel(II).

Project description:In the title complex, [Ni(C(7)H(5)O(2))(2)(C(12)H(12)N(2))(2)], the Ni(II) atom lies on a center of inversion and is coordinated in an octa-hedral geometry by two 2-(benzyl-amino)-pyridine (2-BAP) and two 2-formyl-phenolate ligands with the O-atom donors in the equatorial plane and the pyridine N atoms in axial positions. There are hydrogen-bonding inter-actions between the secondary amine H atom and the phenolate O atom, as well as C-H⋯O inter-actions, which result in the dihedral angle between the aromatic phenyl ring of the 2-formyl-phenolate moiety and the pyridine ring being 80.23 (4)°. In the packing, there are both C-H⋯π inter-actions, which link the mol-ecules into chains along the b axis, and offset π-π inter-actions involving both the pyridine and phenyl rings of the 2-BAP ligands [centroid-centroid distances = 4.0100 (8) Å for the pyridine rings and 3.6601 (8) and 4.8561 (8) Å for the phenyl rings].

| S-EPMC3051610 | biostudies-literature

cis-Aqua-bis(2,4-dichloro-6-formyl-phenolato-κO,O')(N,N-dimethyl-formamide-κO)nickel(II).

Project description:In the title compound, [Ni(C(7)H(3)Cl(2)O(2))(2)(C(3)H(7)NO)(H(2)O)], the Ni(II) ion is coordinated by four O atoms from two bidentate 2,4-dichloro-6-formyl-phenolate ligands, one O atom from a water ligand and one O atom from a dimethyl-formamide ligand in a slightly distorted octa-hedral environment. In the crystal structure, centrosymmetric dimers are formed though O-H⋯O and O-H⋯Cl hydrogen bonds; π-π stacking inter-actions, with a centroid-centroid distance of 3.796 (2) Å, are also found.

| S-EPMC2961979 | biostudies-literature

Bis(4-chloro-2-formyl-phenolato)nickel(II).

Project description:The asymmetric unit of the title compound, [Ni(C(7)H(4)ClO(2))(2)], contains one half-mol-ecule. The Ni(II) ion, lying on an inversion centre, is four-coordinated by O atoms of 5-chloro-salicylaldehydate ligands in a square-planar geometry.

| S-EPMC2924215 | biostudies-literature

Bis[2-(benzyl-amino)pyridine-κN](2-formyl-6-methoxy-phenolato-κO,O)(nitrato-κO,O')nickel(II).

Project description:In the title compound, [Ni(C(8)H(7)O(3))(NO(3))(C(12)H(12)N(2))(2)], the asymmetric unit contains a Ni(II) atom, two mol-ecules of 2-(benzyl-amino)pyridine, a mol-ecule of deprotonated o-vanillin (3-methoxy-salicylaldehydate) and a bidentate nitrate anion. The Ni(II) center is six-coordinated by two pyridine N atoms from 2-(benzyl-amino)pyridine, two O atoms from o-vanillin and two O atoms from the nitrate anion. The crystal packing shows two hydrogen bonds from the amine N-H group to the deprotonated phenol O atom of the o-vanillin moieties, as well as weak C-H⋯O secondary inter-actions. These inter-actions link the mol-ecules into ribbons in the c direction. The steric requirement of the bidentate nitrate and its small bite angle [61.01 (3)°] cause some orientation of the two 2-(benzyl-amino)pyridine groups. As a result, this coordination environment of the Ni(II) center is distorted octa-hedral, as the trans angles range from 158.65 (3) to 175.76 (3)° and the cis angles range from 61.01 (3) (for the bidentate nitrate O atoms) to 102.30 (4)°.

| S-EPMC2970399 | biostudies-literature

Bis{2-(5-hydr-oxy-2-[1-(hydroxy-imino)eth-yl]phenolato-κO,N}nickel(II) N,N-dimethyl-formamide disolvate.

Project description:The Ni atom of the title complex, [Ni(C(8)H(8)NO(3))(2)]·2C(3)H(7)NO, lies on a center of inversion in a square-planar N(2)O(2) coordination environment. An intra-molecular O-H⋯O hydrogen bond exists between the oximic hydr-oxy group of one ligand and the metal-coordinated O atom of the symmetry-related ligand. The dimethyl-formamide solvent mol-ecules are connected to the phenolate groups of the complex via O-H⋯O hydrogen bonds.

| S-EPMC2971387 | biostudies-literature

Bis(2,4-dibromo-6-formyl-phenolato-κO,O')copper(II).

Project description:In the title compound, [Cu(C(7)H(3)Br(2)O(2))(2)], the Cu(II) atom, which lies on an inversion centre, is coordinated by four O atoms from two chelating bidentate 2,4-dibromo-6-formyl-phenolate ligands in a slightly distorted square-planar coordination geometry. In the crystal structure, short inter-molecular Br⋯Br [3.516 (4) and 3.653 (4) Å] and Cu⋯Br [3.255 (1) Å] contacts together with C-H⋯O hydrogen bonds generate a three-dimensional network.

| S-EPMC2914936 | biostudies-literature

Bis{(E)-2-eth-oxy-6-[2-(ethyl-ammonio)ethyl-iminometh-yl]phenolato}nickel(II) bis(perchlorate).

Project description:In the title centrosymmetric mononuclear nickel(II) complex, [Ni(C(13)H(20)N(2)O(2))(2)](ClO(4))(2), the Ni(II) atom is four-coordinated by the imine N and phenolate O atoms of the zwitterionic forms of two Schiff base ligands in a square-planar coordination geometry. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming chains running along the a axis.

| S-EPMC2962001 | biostudies-literature

Diaqua-bis(4-bromo-2-formyl-phenolato-κO,O')cobalt(II).

Project description:In the title complex, [Co(C(7)H(4)BrO(2))(2)(H(2)O)(2)], the Co(II) ion, which lies on a crystallographic inversion center, is coordin-ated by four O atoms from two bidentate 4-bromo-2-formyl-phenolate ligands and two O atoms from two water ligands in a slightly distorted octa-hedral environment. In the crystal structure, one-dimensional chains are formed through inter-molecular O-H⋯O hydrogen bonds, which are further linked into a two-dimensional network through Br⋯Br inter-actions [Br⋯Br = 3.772 (4) Å].

| S-EPMC2959384 | biostudies-literature

catena-Poly[copper(II)-bis-(μ-2-formyl-6-meth-oxy-phenolato-κO,O:O,O)-[(methanol-κO)sodium]-μ-perchlorato-κO:O'].

Project description:In the title heterodinuclear complex, [CuNa(C(8)H(7)O(3))(2)(ClO(4))(CH(3)OH)](n), the Cu(II) ion is five-coordinated by four O atoms from two 2-formyl-6-meth-oxy-phenolate anions and one O atom from a perchlorate anion in a distorted square-pyramidal geometry. The Na(+) ion is six-coordinated by four O atoms from two 2-formyl-6-meth-oxy-phenolate ligands, one O atom of a methanol mol-ecule and one O atom of a perchlorate anion. The perchlorate anions link the Na(+) and Cu(II) ions, forming a chain along [010]. O-H⋯O hydrogen bonds connect the chains. π-π inter-actions are present between the benzene rings [centroid-centroid distances = 3.566 (2) and 3.702 (2) Å]. The O atoms of the perchlorate anion are disordered over two sets of sites, with an occupancy ratio of 0.481 (8):0.519 (8).

| S-EPMC3274885 | biostudies-literature

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