Browse
Submit Data
Databases
API
Help

Dataset Information

30 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

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

ABSTRACT: 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.

SUBMITTER: Bernes S

PROVIDER: S-EPMC2979995 | biostudies-literature |

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Similar Datasets

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

Bis{4-chloro-6-formyl-2-[(E)-2-(1H-imidazol-4-yl-κN)ethyl-imino-methyl-κN]phenolato-κO}nickel(II).

Project description:In the title compound, [Ni(C(13)H(11)ClN(3)O(2))(2)], the Ni(II) atom is located on a twofold rotation axis and is six-coordinated by four N atoms and two phenolate O atoms from the two equal Schiff base ligands in a distorted octa-hedral coordination geometry. The complex mol-ecules are connected by C-H⋯Cl, C-H⋯O and N-H⋯O hydrogen bonds.

| S-EPMC2959577 | biostudies-literature

Bis[2-(benzyl-imino-meth-yl)-4-chloro-phenolato-κN,O]nickel(II).

Project description:In the mononuclear centrosymmetric title compound, [Ni(C(14)H(11)ClNO)(2)], the Ni(II) atom, lying on a center of symmetry, is four-coordinated by two O atoms and two N atoms from two Schiff base ligands, forming a slightly distorted square-planar environment. The dihedral angle between the two aromatic rings of the ligand is 72.0 (2)°. No significant hydrogen bonding or π-π stacking inter-actions are observed.

| S-EPMC2915132 | biostudies-literature

Bis{2-formyl-4-methyl-6-[(tri-2-pyridyl-meth-yl)imino-meth-yl]phenolato}nickel(II).

Project description:The title compound, [Ni(C(25)H(19)N(4)O(2))(2)], which was obtained by the reaction of nickel(II) perchlorate with 2,6-diformyl-4-methyl-phenol and (tri-2-pyridylmeth-yl)amine in methanol solution, is a discrete monometallic complex. The Ni(II) atom is six-coordinated by the phenolate O, imine N and pyridine N atoms from two tridentate Schiff base ligands in a distorted NiN(4)O(2) octa-hedral geometry. The dihedral angles between the noncoordinated pyridyl rings of each ligand are 72.95?(8) and 69.59?(7)°.

| S-EPMC2968412 | biostudies-literature

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

Project description: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.

| S-EPMC2960901 | biostudies-literature

Bis{?-2-[(pyridin-2-yl)imino-meth-yl]phenolato}bis-[(2-formyl-phenolato)copper(II)].

Project description:The asymmetric unit of the title compound, [Cu(2)(C(12)H(9)N(2)O)(2)(C(7)H(5)O(2))(2)], contains two independent (2-formyl-phen-olato){2-[(pyridin-2-yl)imino-meth-yl]phenolato}copper(II) mol-ecules that form pseudocentrosymmetric dimers via inter-actions between the Cu and pyridyl N atoms of independent monomers. The square-planar geometry of the Cu atoms in the monomer thus becomes square-based pyramidal in the dimer. The crystal studied was an inversion twin, with unequal populations of 0.353?(17) and 0.647?(17).

| S-EPMC3120375 | biostudies-literature

Bis{2-[3-(dimethyl-amino)propyl-imino-meth-yl]-6-methoxy-phenolato-κN,N',O}nickel(II).

Project description:The centrosymmetric title complex, [Ni(C(13)H(19)N(2)O(2))(2)], is a mononuclear nickel(II) complex. The Ni(II) atom is coordinated by four N atoms and two O atoms of two deprotonated Schiff base ligands, forming a slightly distorted octa-hedral coordination configuration, in which the tertiary N atoms occupy the axial positions.

| S-EPMC2961932 | biostudies-literature

Bis[2-(3-cyano-phenyl-imino-meth-yl)phenolato]nickel(II).

Project description:In the title complex, [Ni(C(14)H(9)N(2)O)(2)], the Ni(II) atom lies on an inversion center and is coordinated by the O atom and an N atom of two Schiff base 2-(3-cyano-phenyl-imino-meth-yl)phenolate ligands in a square-planar geometry. The dihedral angle between the cyano-phenyl and phenolate rings is 47.62?(7)°.

| S-EPMC2960771 | 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{2-meth-oxy-6-[3-(methyl-amino)propyl-imino-meth-yl]phenolato}nickel(II) bis-(perchlorate).

Project description:The asymmetric unit of the title compound, [Ni(C(12)H(18)N(2)O(2))(2)](ClO(4))(2), consists of one-half of a centrosymmetric mononuclear Schiff base nickel(II) complex cation and one perchlorate anion. The Ni(II) ion, lying on the inversion center, is coordinated by two N atoms and two O atoms from two Schiff base ligands, forming a square-planar geometry. The crystal packing is stabilized by N-H⋯O hydrogen bonds.

| S-EPMC2961174 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data