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

ABSTRACT: The asymmetric unit of the title compound, [Sm(NO(3))(3)(C(15)H(15)NO(2))(2)(CH(3)OH)], contains two Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate (HL) ligands, three nitrate ions and one methanol mol-ecule that binds to the nine-coordinate samarium(III) ion via its O atoms. The HL ligands chelate with a strong Sm-O(deprotonated phenolic) bond and a weak Sm-O(meth-oxy) contact. The latter can be inter-preted as the apices of the bicapped square-anti-prismatic Sm(III)O(9) polyhedron. The Schiff base ligands are in a zwitterionic state with the phenolic H atom transferred to the imine N atom. O-H?O, O-H?N and N-H?O hydrogen bonds lend stability to the structure. One O atom of one nitrate group is equally disordered over two positions.

SUBMITTER: Guo HM

PROVIDER: S-EPMC3051746 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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Bis{2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolato-κO,O}tris-(nitrato-κO,O')methano-lsamarium(III).

Guo Hang-Ming HM

Acta crystallographica. Section E, Structure reports online 20110115 Pt 2

The asymmetric unit of the title compound, [Sm(NO(3))(3)(C(15)H(15)NO(2))(2)(CH(3)OH)], contains two Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate (HL) ligands, three nitrate ions and one methanol mol-ecule that binds to the nine-coordinate samarium(III) ion via its O atoms. The HL ligands chelate with a strong Sm-O(deprotonated phenolic) bond and a weak Sm-O(meth-oxy) contact. The latter can be inter-preted as the apices of the bicapped square-anti-prismatic Sm(III)O(9) po ...[more]

PMID: 21522856

Similar Datasets

(Methanol-κO)bis-{2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolato-κO,O'}tris-(nitrato-κO,O')lanthanum(III).

Project description:The asymmetric unit of title compound, [La(NO(3))(3)(C(15)H(15)NO(2))(2)(CH(3)OH)], consists of two Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolato (HL) ligands, three independent nitrate anions and one methanol mol-ecule coordinated to La(III). The coordination environment of the La(III) ion is formed by eleven O atoms. Three bidentate nitrate anions coordinate to the La(III) ion, while two HL ligands chelate the metal center with O atoms from the phenolate and meth-oxy groups. The HL ligands are zwitterionic, with protonated imine N atoms. The coordination sphere is completed by one methanol mol-ecule. The protonated imine N atoms are involved in intra-molecular N-H⋯O hydrogen bonds with the phen-oxy groups and nitrate ligands. One O atom of one nitrate group is disordered over two sites of equal occupancy.

| S-EPMC2983206 | biostudies-literature

(Methanol-?O)bis-{2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolato-?O,O'}tris-(nitrato-?O,O')cerium(III).

Project description:The asymmetric unit of title compound, [Ce(NO(3))(3)(C(15)H(15)NO(2))(2)(CH(3)OH)], consists of two Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate (HL) ligands, three nitrate anions and a methanol ligand. The Ce(III) ion is 11-coordinated: three nitrate radical anions coordinate to the Ce(III) ion through O atoms, two HL ligands chelate the Ce(III) ion through the O atoms of the phenolate and meth-oxy groups, and one methanol mol-ecule coordinates to Ce(III) ion through its O atom. The O atom of one nitrate anion is disordered over two sites of equal occupancy. The protonated imine N atoms are involved in intra-molecular hydrogen bonds with the phenoxide groups. C-H?O inter-actions are also observed.

| S-EPMC3007323 | biostudies-literature

Bis{6-meth-oxy-2-[(4-methyl-phen-yl)-iminio-meth-yl]phenolato-κO,O'}bis-(nitrato-κO,O')cadmium(II).

Project description:The Schiff base 6-meth-oxy-2-[(4-methyl-phen-yl)imino-meth-yl]-phenol (HL) forms a neutral complex with cadmium(II) nitrate, [Cd(NO(3))(2)(C(15)H(15)NO(2))(2)], in which the four O atoms of the two independent ligands are coordinated to the metal center and the protonated imine N atoms are involved in a hydrogen bond with the phenoxide group. Intra-molecular N-H⋯O hydrogen-bonding inter-actions stabilize the structure. Each organic ligand assumes a zwitterionic form, chelating to the metal atom through the two O atoms, while the two nitrate groups also exhibit chelating behavior, leading to a distorted octahedral coordination of the Cd atom.

| S-EPMC2959626 | biostudies-literature

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

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

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

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

Project description: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].

| S-EPMC2972108 | biostudies-literature

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