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Tris{2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate-?O,O'}tris-(thio-cyanato-?N)europium(III).

ABSTRACT: The metal center in the structure of the title compound, [Eu(NCS)(3)(C(15)H(15)NO(2))(3)], is coordinated by three Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate (L) ligands and three independent thio-cyanate ions. In the crystal structure, the acidic H atom is located on the Schiff base N atom and hydrogen bonded to the phenolate O atom. The coordination environment of the Eu(III) ion is nine-coordinate by three chelating methoxy-phenolate pairs of O atoms and three N-atom terminals of the thio-cyanate ions. The compound is isostructural with the Ce(III) analogue [Liu et al. (2009 ?). Acta Cryst. E65, m650].

SUBMITTER: Liu JF

PROVIDER: S-EPMC2972108 | biostudies-literature | 2009 Nov

REPOSITORIES: biostudies-literature

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Tris{2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate-κO,O'}tris-(thio-cyanato-κN)europium(III).

Liu Jian-Feng JF Liu Jia-Lu JL Zhao Guo-Liang GL

Acta crystallographica. Section E, Structure reports online 20091121 Pt 12

The metal center in the structure of the title compound, [Eu(NCS)(3)(C(15)H(15)NO(2))(3)], is coordinated by three Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate (L) ligands and three independent thio-cyanate ions. In the crystal structure, the acidic H atom is located on the Schiff base N atom and hydrogen bonded to the phenolate O atom. The coordination environment of the Eu(III) ion is nine-coordinate by three chelating methoxy-phenolate pairs of O atoms and three N-atom ...[more]

PMID: 21578663

Similar Datasets

Tris{2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate-κO,O'}tris-(thio-cyanato-κN)lanthanum(III).

Project description:In the title compound, [La(NCS)(3)(C(15)H(15)NO(2))(3)], the metal centre is nine-coordinated by six O atoms from three zwitterionic Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)iminio-meth-yl]phenolate (L) ligands and three terminal N atoms of the thio-cyanate ions in a monocapped square-anti-prismatic environment. The L ligands chelate the La(III) ion with strong La-O(deprotonated phenolic) bonds [2.435 (3)-2.464 (3) Å] and significantly longer La-O(meth-oxy) bonds [2.801 (3)-2.831 (3) Å]. The La-N bond lengths range from 2.541 (4) to 2.605 (4) Å.

| S-EPMC2971951 | biostudies-literature

Tris{2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolato-?O,O'}tris-(thio-cyanato-?N)praseodymium(III) monohydrate.

Project description:The asymmetric unit of title compound, [Pr(NCS)(3)(C(15)H(15)NO(2))(3)]·H(2)O, consists of three Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)imino-meth-yl]phenol (HL) ligands, three independent thio-cyanate anions and an uncoordinated water mol-ecule. The Pr(III) ion is nine-coordinated. The thio-cyanate anions coordinate to the Pr(III) ion via the N atoms and the three HL ligands chelate the Pr(III) ion via the phenoxy and meth-oxy O atoms. The protonated imine N atoms are involved in intra-molecular hydrogen bonds with the phenolate groups.

| S-EPMC2971403 | biostudies-literature

Tris[6-meth-oxy-2-(phenyl-iminiometh-yl)phenolato]-?O,O';?O-tris-(thio-cyanato-?N)samarium(III).

Project description:In the crystal structure of title compound, [Sm(NCS)(3)(C(14)H(13)NO(2))(3)], two of the zwitterionic Schiff base 6-meth-oxy-2-(phenyl-iminiometh-yl)phenolate ligands coordinate to the Sm(III) atom in a bidentate fashion via the phenolate and meth-oxy O atoms. The third Schiff base ligand is monodentate, binding only through the phenolate O atom. The coordination sphere of the eight-coordinate Sm atom is completed by the three independent thio-cyanate ions binding through their N atoms, affording a square-anti-prismatic geometry. An S atom of one of the thio-cyanate anions is disordered over two sites in a 0.85:0.15 ratio. In the phenolate ligands, the proton of the phenolic hy-droxy group transfers to the imine N atom. This proton is also involved in an intra-molecular N-H?O hydrogen bond that imposes a nearly planar conformation on each ligand, with dihedral angles of 1.75?(4), 3.68?(5) and 3.86?(4)° between the aromatic rings of each ligand.

| S-EPMC3120503 | biostudies-literature

Tris{2-meth-oxy-6-[(4-methyl-phenyl)-iminiometh-yl]phenolato-?O,O'}tris-(thio-cyanato-?N)cerium(III).

Project description:The asymmetric unit of the title compound, [Ce(NCS)(3)(C(15)H(15)NO(2))(3)], contains three Schiff base 2-methoxy-6-[(4-methyl-phenyl)iminometh-yl]-phenol (HL) ligands and three independent thio-cyanate ions that coordinate the cerium ion via their N atoms. The protonated imine N atoms are involved in an intra-molecular hydrogen bond with the respective phenoxide group. The Ce(III) ion exhibits a coordination number of nine.

| S-EPMC2969666 | biostudies-literature

Bis{[6-meth-oxy-2-(4-methyl-phen-yl)iminiometh-yl]phenolate-?O,O'}tris-(nitrato-?O,O')europium(III).

Project description:The crystal structure of title compound, [Eu(NO(3))(3)(C(15)H(15)NO(2))(2)], contains two Schiff base 6-meth-oxy-2-[(4-methyl-phen-yl)imino-meth-yl]phenolate (L) ligands and three independent nitrate ions that chelate to the europium(III) ion via the O atoms. The coordination number of the Eu(III) ion is ten. The L ligands chelate with a strong Eu-O(deprotonated phenolate) bond and a weak Eu-O(meth-oxy) contact, the latter can be inter-preted as the apices of the bicapped square-anti-prismatic Eu(III) polyhedron. Intra-molecular N-H?O hydrogen bonds occur.

| S-EPMC3009253 | biostudies-other

Bis[6-meth-oxy-2-[(4-methyl-phen-yl)iminiometh-yl]phenolate-?O]tris-(nitrato-?O,O')ytterbium(III) monohydrate.

Project description:The crystal structure of title compound, [Yb(NO(3))(3)(C(15)H(15)NO(2))(2)]·H(2)O, contains two Schiff base 2-[(4-methyl-phen-yl)imino-meth-yl]-6-methoxy-phenol (HL) ligands, three independent nitrate ions that chelate to the ytterbium(III) ion in an O,O'-bidentate manner and an uncoordinated water mol-ecule. The coordination number of the Yb(III) ion is eight. The HL ligands chelate with a strong Yb-O(phenolate) bond and a weak Yb-O(meth-oxy) contact. The latter augments the coordination polyhedron to give a YbO(10) bicapped square antiprism. Classical inter-molecular O-H?O and N-H?O hydrogen bonds as well as weak C-H?O contacts contribute to the stability of the structure.

| S-EPMC2971141 | biostudies-literature

Bis{6-meth-oxy-2-[(4-methyl-phen-yl)iminiometh-yl]phenolate-?O,O'}tris-(nitrato-?O,O')holmium(III) mono-hydrate.

Project description:The crystal structure of the title compound, [Ho(NO(3))(3)(C(15)H(15)NO(2))(2)]·H(2)O, contains two Schiff base 6-meth-oxy-2-[(4-methyl-phen-yl)iminiometh-yl]phenolate (L) ligands, three independent nitrate ions that chelate to the Ho(III) ion with O atoms and a hydrate water mol-ecule. The coordination environment of the Ho(III) ion is ten-coordinate. The L ligands chelate with a strong Ho-O(phenolate) bond and weaker Ho-O(meth-oxy) contacts. The latter can be inter-preted as the apices of the bicapped square-anti-prismatic [HoO(10)] polyhedron. Inter-molecular N-H?O hydrogen bonds occur. Intra-molecular O-H?O inter-actions link the complex mol-ecules and uncoordinated water mol-ecules.

| S-EPMC3011490 | biostudies-literature

(E)-2-[(2-Hydr-oxy-5-nitro-phen-yl)iminiometh-yl]phenolate.

Project description:In the title mol-ecule, C(13)H(10)N(2)O(4), the dihedral angle between the mean planes of the benzene and phenolate rings is 21.6?(4)°. The nitro O atoms are twisted slightly out of the plane of the ring to which the nitro group is attached [dihedral angle 8.4?(3)°]. The amine group forms an intra-molecular hydrogen bond with both nearby O atoms. An extended ? delocalization throughout the entire mol-ecule exists producing a zwitterionic effect in this region of the mol-ecule. The shortened C-O bond [1.2997?(15)?Å] in concert with the slightly longer C-OH bond [1.3310?(16)?Å] provide evidence for this effect. The crystal packing is influenced by strong inter-molecular O-H?O hydrogen bonding. As a result, mol-ecules are linked into an infinite zigzag chain running along the b axis. A MOPAC PM3 calculation provides support to these observations.

| S-EPMC2968543 | biostudies-literature

Tris[2-meth-oxy-6-(4-methyl-phenyl-iminio-meth-yl)phenolato-?O,O']tris-(thio-cyanato-?N)neodymium(III).

Project description:In the title compound, [Nd(NCS)(3)(C(15)H(15)NO(2))(3)], the Nd(III) ion is coordinated by three thio-cyanate anions [Nd-N = 2.489?(8)-2.530?(7)?Å] and six O atoms [Nd-O = 2.375?(4)-2.843?(5)?Å] from three zwitterionic 2-meth-oxy-6-(4-methyl-phenyl-iminiometh-yl)phenolate ligands in a tricapped trigonal-prismatic geometry. Intra-molecular N-H?O hydrogen bonds occur. The crystal packing exhibits weak inter-molecular C-H?S hydrogen bonds, ?-? inter-actions with a distance of 3.904?(7)?Å between the centroids of the aromatic rings, and voids of 101?Å(3).

| S-EPMC2980016 | biostudies-literature

2-[(E)-(3-Carb-oxy-4-hy-droxy-phen-yl)iminiometh-yl]-4-chloro-phenolate.

Project description:The title Schiff base compound, C(14)H(10)ClNO(4), has been synthesized by the reaction of 5-amino-2-hy-droxy-benzoic acid and 5-chloro-2-hy-droxy-benzaldehyde. The mol-ecule is a zwitterion in the crystal, with the phenolic hy-droxy group deprotonated and the imine N atom protonated. It adopts an E configuration about the central C=N double bond. The dihedral angle between the two benzene rings is 3.83 (7)°. Intra-molecular N-H⋯O and O-H⋯O hydrogen bonding generates S(6) ring motifs. In the crystal, mol-ecules are connected by inter-molecular O-H⋯O and C-H⋯Cl hydrogen bonds, forming a supra-molecular chain.

| S-EPMC3007861 | biostudies-literature

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