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

ABSTRACT: 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.

SUBMITTER: Guo HM

PROVIDER: S-EPMC2961932 | biostudies-literature |

REPOSITORIES: biostudies-literature

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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

Bis{2,4-dichloro-6-[3-(dimethyl-amino)propyl-imino-meth-yl]phenolato}copper(II).

Project description:In the title complex, [Cu(C(12)H(15)Cl(2)N(2)O)(2)], the Cu(II) ion is coordinated by one N,O-bidentate and one N,N',O-tridentate Schiff base ligand, resulting in a distorted CuN(3)O(2) square-based pyramidal coordination for the metal ion, with the O atoms lying trans to each other in the basal plane.

| S-EPMC2970479 | biostudies-literature

Bis{2-[3-(dimethyl-amino)propyl-imino-meth-yl]-4,6-dihydro-seleno-phenolato}zinc(II).

Project description:In the title complex, [Zn(C(12)H(17)N(2)OSe(2))(2)], the Zn(II) ion is six-coordinated by two N,N',O-tridentate Schiff base ligands, resulting in a slightly distorted trans-ZnO(2)N(4) octa-hedral coordination for the metal ion.

| S-EPMC2969977 | biostudies-literature

Bis[2-(cyclo-propyl-imino-meth-yl)-5-methoxy-phenolato]zinc(II).

Project description:In the title complex, [Zn(C(11)H(12)NO(2))(2)], the Zn(2+) ion (site symmetry 2) is coordinated by two N,O-bidentate Schiff base ligands, generating a tetra-hedral ZnO(2)N(2) geometry for the metal ion.

| S-EPMC2979218 | biostudies-literature

Bis{2-[3-(dimethyl-ammonio)-propyl-imino-methyl-?N]-6-meth-oxy-phenolato-?O}bis-(thio-cyanato-?N)nickel(II).

Project description:The asymmetric unit of the title complex, [Ni(NCS)(2)(C(13)H(20)N(2)O(2))(2)], consists of two half-mol-ecules, both of which are completed by crystallographic inversion symmetry (Ni(2+) site symmetry = in both cases). Both metal ions are six-coordinated in distorted trans-NiO(2)N(4) geometries arising from two N,O-bidentate Schiff base ligands and two N-bonded thio-cyanate ions. The mol-ecular conformations are reinforced by two intra-molecular N-H?O hydrogen bonds.

| S-EPMC3009057 | biostudies-literature

cis-Bis[2-(cyclo-propyl-imino-meth-yl)-6-methoxy-phenolato]bis-(thio-cyanato)cobalt(II).

Project description:In the title compound, [Co(NCS)(2)(C(11)H(13)NO(2))(2)], a mononuclear Schiff base cobalt(II) complex, the Co atom is six-coordinated by four O atoms from two Schiff base ligands, and by two N atoms from two thio-cyanate ligands, forming a distorted octa-hedral geometry. The central Co atom lies on a twofold rotation axis. An intramolecular N-H⋯O hydrogen bond is present.

| S-EPMC2914956 | 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

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-[3-(dimethyl-amino)-propyl-imino-meth-yl]-6-meth-oxy-phenolato}-?N,N',O;?N,O-zinc(II) dihydrate.

Project description:In the title mononuclear Zn(II) complex, [Zn(C(13)H(19)N(2)O(2))(2)]·2H(2)O, the Zn(II) atom is coordinated by two O atoms and three N atoms from two crystallographically different Schiff base ligands in a distorted trigonal-bipyramidal environment. One O and two N atoms constitute the base of the pyramid, and one O and one N atoms occupy the apical positions. Inter-molecular O-H?O and O-H?N hydrogen bonds between the lattice water mol-ecules and N/O atoms of the Schiff base ligands stabilize the conformation, whereas inter-molecular O-H?O hydrogen bonds between the two lattice water mol-ecules lead to a chain structure in [001].

| S-EPMC3050366 | biostudies-literature

(Acetato-κO)(2-{[2-(dimethyl-amino)-ethyl-imino](phen-yl)meth-yl}-5-methoxy-phenolato-κN,N',O)copper(II).

Project description:The Cu(II) atom in the title complex, [Cu(C(18)H(21)N(2)O(2))(C(2)H(3)O(2))], is tetra-coordinated by two N atoms and two O atoms, of which one O atom is attributed to the acetate group and the other atoms are from the tridentate salicylideneiminate ligand, forming a slight distorted square-planar environment. The other acetate O atom exhibits a very weak intra-molecular inter-action toward the Cu atom, the Cu-O distance of 2.771 (2) Å being shorter than the van der Waals radii for Cu and O atoms (2.92 Å). Furthermore, there are weak inter-molecular inter-actions, in which the bonding O atom of the acetate group can bridge to the Cu atom of another complex, and the distance of 2.523 (2) Å is about 0.4 Å shorter than the van der Waals Cu-O distance in other crystal structures.

| S-EPMC2959767 | biostudies-literature

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