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Bis{5-meth-oxy-2-[(1H-pyrrol-2-yl)methyl-imino-meth-yl]phenolato}zinc(II).

ABSTRACT: The title compound, [Zn(C(13)H(13)N(2)O(2))(2)], contains a Zn(II) centre, located on a twofold rotation axis, that is coordinated by two O atoms and two N atoms from two salicylal Schiff base mol-ecules. The crystal structure is stabilized by inter-molecular C-H?O hydrogen bonds.

SUBMITTER: Cai YJ

PROVIDER: S-EPMC2970064 | biostudies-literature | 2009 Aug

REPOSITORIES: biostudies-literature

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Bis{5-meth-oxy-2-[(1H-pyrrol-2-yl)methyl-imino-meth-yl]phenolato}zinc(II).

Cai Ying-Jie YJ Huang Peng P Li Jin J Wang Qiang Q

Acta crystallographica. Section E, Structure reports online 20090822 Pt 9

The title compound, [Zn(C(13)H(13)N(2)O(2))(2)], contains a Zn(II) centre, located on a twofold rotation axis, that is coordinated by two O atoms and two N atoms from two salicylal Schiff base mol-ecules. The crystal structure is stabilized by inter-molecular C-H⋯O hydrogen bonds. ...[more]

PMID: 21577459

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Bis{2-[(1H-pyrrol-2-yl)methyl-imino-meth-yl]phenolato-κN,O}zinc(II).

Project description:In the title compound, [Zn(C(12)H(11)N(2)O)(2)], the Zn(II) atom, lying on an inversion center, is coordinated by two O atoms and two N atoms from two salicylal Schiff base ligands in a distorted square-planar geometry. A three-dimensional network is formed by inter-molecular C-H⋯N hydrogen bonds and C-H⋯π contacts.

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Bis{?-2-meth-oxy-6-[(methyl-imino)-meth-yl]phenolato}bis-({2-meth-oxy-6-[(methyl-imino)-meth-yl]phenolato}copper(II)).

Project description:The title compound, [Cu2(C9H10NO2)4], is built of discrete centrosymmetric dimers. The Cu(II) atoms are each five coordinated by two deprotonated Schiff base ligands that are bonded differently to the metal atoms. Of the two phenolate O atoms, one is coordinated to one Cu(II) atom, whereas another bridges the two metal atoms. The basal plane of the square pyramid around Cu(II) atoms is formed by the imino N and phenolate O atoms of the bidentate and the monodentate/bidentate Schiff base ligands. The bridging phenolate oxygen occupies the apical position of the coordination sphere with a considerably longer Cu-O bond length. In the crystal, the dimeric mol-ecules pack relative to each other in such a way that the Cu2O2 planes of adjacent dimers are orthogonal.

| S-EPMC3790358 | biostudies-literature

Bis{2-meth-oxy-6-[(3-pyrid-yl)methyl-imino-meth-yl]phenolato}copper(II).

Project description:In the mononuclear title complex, [Cu(C(14)H(13)N(2)O(2))(2)], the Cu(II) atom lies on an inversion centre and adopts a square-planar coordination geometry. The dihedral angle formed by the pyridine and benzene rings is 74.61?(5)°. Intra-molecular C-H?O hydrogen bonds are present. The crystal structure is stabilized by weak aromatic ?-? stacking inter-actions involving neighbouring pyridine rings [centroid-centroid distance = 3.853?(2)?Å].

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Crystal structure of di-chlorido-bis-{μ-2-meth-oxy-6-[(methyl-imino)-meth-yl]phenolato}{2-meth-oxy-6-[(methyl-imino)-meth-yl]phenolato}cadmium(II)cobalt(III) monohydrate.

Project description:The title compound, [CoCd(C9H10NO2)3Cl2]·H2O, is a solvatomorph of the corresponding hemihydrate recently published by us [Nesterova et al. (2018 ▸). Appl. Cat. A, 560, 171-184]. The current structure reveals different cell parameters and space group compared with the published one while both are monoclinic with almost the same cell volume. The title compound is formed of discrete neutral dinuclear mol-ecules with no crystallographically imposed symmetry and water mol-ecules of crystallization. The overall geometry about the cobalt(III) ion is octa-hedral with an N3O3 environment; each ligand acts as a meridional ONO donor. The CdII coordination sphere approximates an irregular square pyramid with a chlorine atom at the apex. There is significant shortening of a Cd-O bond length to the oxygen atom of the methoxo group on one of the ligands [2.459 (3) Å] compared to the corresponding distance in the published structure [2.724 (7) Å], while other Cd-Cl/N/O bonds remain roughly the same. In the crystal lattice, the heterometallic mol-ecules, which are related by the crystallographic n-glide plane and inter-linked by weak hydrogen bonds to solvent water mol-ecules, form columns along [101]. Adjacent columns lie anti-parallel to each other.

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Bis(2-meth-oxy-6-{[2-(methyl-ammonio)eth-yl]imino-meth-yl}phenolato)thio-cyanato-zinc(II) thio-cyanate hemihydrate.

Project description:The title mononuclear zinc(II) complex, [Zn(C(11)H(16)N(2)O(2))(2)(NCS)]NCS·0.5H(2)O, consists of a complex cation, a thio-cyanate anion, and half of a water mol-ecule. The Zn(II) atom in the cation is five-coordinated by two imine N and two phenolate O atoms from two bidentate Schiff base ligands, and by one N atom of a thio-cyanate ligand, forming a distorted trigonal-bipyramidal geometry. The ammonio H atoms are involved in hydrogen bonding with the ligand O atoms and the solvent water molecules (site occupation factor 0.5), which partially determines the conformation of the ligands.

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Crystal structure of bis-{?-2-meth-oxy-6-[(methyl-imino)-meth-yl]phenolato}bis-({2-meth-oxy-6-[(methyl-imino)-meth-yl]phenolato}nickel(II)) involving different coordination modes of the same Schiff base ligand.

Project description:The structure of the title compound, [Ni2(C9H10NO2)4], is built up by discrete centrosymmetric dimers. Two nitro-gen and three oxygen atoms of two Schiff base ligands singly deprotonated at the phenolate site form a square-pyramidal environment for each metal atom. The ligands are bonded differently to the metal centre: one of the phenolic O atoms is bound to one nickel atom, whereas another bridges the two metal atoms to form the dimer. The Ni-N/O distances fall in the range 1.8965?(13)-1.9926?(15)?Å, with the Ni-N bonds being slightly longer; the fifth contact of the metal to the bridging phenolate oxygen atom is substanti-ally elongated [2.533?(1)?Å]. A similar coordination geometry was observed in the isomorphous Cu analogue previously reported by us [Sydoruk et al. (2013 ?). Acta Cryst. E69, m551-m552]. In the crystal, the [Ni2 L 4] mol-ecules form sheets parallel to the ab plane with the polar meth-oxy groups protruding into the inter-sheet space and keeping the sheets apart. Within a sheet, the mol-ecules are stacked relative to each other in such a way that the Ni2O2 planes of neighbouring mol-ecules are orthogonal.

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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.

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Bis{2-eth-oxy-6-[2-(methyl-ammonio)ethyl-imino-meth-yl]phenolato}thio-cyanato-zinc(II) nitrate.

Project description:In the title compound, [Zn(NCS)(C(12)H(18)N(2)O(2))(2)]NO(3), the Zn(II) ion is chelated by the phenolate O and imine N atoms from two zwitterionic Schiff base ligands and is also coordinated by the N atom of a thio-cyanate ligand, giving a distorted trigonal-bipyramidal geometry. Intra-molecular N-H?O hydrogen bonds are observed in the complex cation. The nitrate anions are linked to the complex cations through N-H?O hydrogen bonds.

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Bis{(E)-2-meth-oxy-6-[(4-methyl-phen-yl)-imino-meth-yl]phenolato}zinc(II).

Project description:The title compound, [Zn(C(15)H(14)NO(2))(2)], contains a four-coordinate Zn atom located on a twofold rotation axis that exhibits a distorted tetra-hedral geometry by two phenolate O atoms and two azomethine N atoms of the Schiff base 2-methoxy-6-[(4-methyl-phen-yl)imino-meth-yl]phenolate ligands.

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