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Tetra-kis(?-naphthalene-1-acetato-1:2?O:O')bis-(naphthalene-1-acetato)-1?O,O';2?O,O'-bis-(1,10-phenanthroline)-1?N,N';2?N,N'-europium(III)samarium(III).

ABSTRACT: In the title compound, [EuSm(C(12)H(9)O(2))(6)(C(12)H(8)N(2))(2)], the metal site is statistically occupied (50:50) by Eu and Sm atoms, forming a centrosymmetric complex. The metal site is nine-coordinate, in a distorted monocapped square-anti-prismatic coordination geometry. Mol-ecules are linked into three chains by C-H?? interactions and C-H?O hydrogen bonds. The combination of these chains generates a three-dimensional framework structure. One of the bridging naphthalene-1-ace-tate ligands was found to be disordered over two sites; the site occupancies for the naphthylmethyl group refined to 0.628?(14) and 0.372?(14).

SUBMITTER: Xia HT

PROVIDER: S-EPMC2959786 | biostudies-literature |

REPOSITORIES: biostudies-literature

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{μ-2-[(Benzothia-zol-2-yl-2κN)hydrazonomethyl-2κN]-6-methoxy-phenolato-1:2κO,O:O}{2-[(benzo-thia-zol-2-yl-1κN)hydrazonomethyl-1κN]-6-methoxy-phenolato-1κO}(methanol-2κO)(nitrato-2κO)dicopper(II) nitrate.

Project description:The title complex, [Cu(2)(C(15)H(12)N(3)O(2)S)(2)(NO(3))(CH(3)OH)]NO(3), has two Cu(II) centres coordinated by two deprotonated 2-[(benzothia-zol-2-yl)hydrazonometh-yl]-6-methoxy-phenol ligands, a methanol mol-ecule and a nitrate ion. Both Cu(II) centres are penta-coordinated in a distorted square-pyramidal fashion. The crystal structure is stabilized by N-H⋯O and O-H⋯O hydrogen bonds.

| S-EPMC2969907 | biostudies-literature

{6,6'-Dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato-1κO,O,O,O:2κO,N,N',O}(ethanol-1κO)-μ-nitrato-1:2κO:O'-dinitrato-1κO,O'-samarium(III)zinc(II).

Project description:In the title heteronuclear Zn(II)-Sm(III) complex, [SmZn(C(18)H(18)N(2)O(4))(NO(3))(3)(CH(3)CH(2)OH)], with the hexa-dentate Schiff base compartmental ligand N,N'-bis-(3-methoxy-salicyl-idene)ethyl-enediamine (H(2)L), the Sm(III) and Zn(II) ions are triply bridged by two phenolate O atoms from the Schiff base ligand and one nitrate anion. The five-coordinate Zn(II) ion is in a square-pyramidal geometry formed by the donor centers of two imine N atoms, two phenolate O atoms and one of the bridging nitrate O atoms. The Sm(III) center is in a ten-fold coordination of O atoms, involving the phenolate O atoms, two meth-oxy O atoms, one ethanol O atom, and two O atoms from two nitrate anions and one from the bridging nitrate anion. In the crystal, inter-molecular O-H⋯O and C-H⋯O inter-actions generate a layer structure extending parallel to (101).

| S-EPMC2970192 | biostudies-literature

Octa-akis(4-amino-pyridine)-1κN,2κN-aqua-2κO-μ-carbonato-1:2κO,O':O''-dinickel(II) dichloride penta-hydrate.

Project description:In the title compound, [Ni(2)(CO(3))(C(5)H(6)N(2))(8)(H(2)O)]Cl(2)·5H(2)O, one of the the Ni(II) ions is six-coordinated in a distorted octa-hedral geometry, with the equatorial plane defined by four pyridine N atoms from four amino-pyridine ligands, the axial positions being occupied by one water O and a carbonate O atom. The other Ni(II) ion is also six-coordinated, by four other pyridine N atoms from four other amino-pyridine ligands and two carbonate O atoms to complete a distorted octa-hedral geometry. In the crystal structure, mol-ecules are linked into an infinite three-dimensional network by O-H⋯O, N-H⋯Cl, N-H⋯O, O-H⋯N, C-H⋯O, C-H⋯N and C/N-H⋯π inter-actions involving the pyridine rings.

| S-EPMC2959610 | biostudies-literature

Di-μ(2)-acetato-1:2κO:O';2:3κO:O'-bis-(N,N'-dimethyl-formamide)-1κO,3κO-bis-{μ(2)-2,2'-[propane-1,3-diylbis(imino-methyl-ene)]diphenolato-1κO,N,N',O':2κO,O';2κO,O':3κO,N,N',O'-1,3-dinickel(II)-2-cadmium(II).

Project description:The crystal structure of the title compound, [Ni(2)Cd(C(17)H(16)N(2)O(2))(2)(C(2)H(3)O(2))(2)(C(3)H(7)NO)(2)], contains discrete centrosymmetric hetero-trinuclear mol-ecules in which Ni/Cd atom pairs are triply bridged via O atoms from the SALPD(2-) [N,N'-bis-(salicyl-idene)-1,3-propane-diaminate] and acetate ligands. The central Cd(II) ion is in a distorted octa-hedral coordination environment formed by four O atoms from two SALPD(2-) ligands in the equatorial plane and two O atoms of two symmetry-related acetate ligands in the axial positions. The symmetry-related Ni(II) ions are in slightly distorted octa-hedral environments, coordinated by two O and two N atoms from tetra-dendate SALPD(2-) ligands in the equatorial plane, while the axial positions are occupied by O atoms from a dimethyl-formamide and an acetate ligand. This results in the formation of three edge-shared octa-hedra in which the Ni⋯Cd distance is 3.1482 (15) Å. The crystal structure is stabilized by weak C-H⋯O hydrogen bonds.

| S-EPMC2960377 | biostudies-literature

Hexa-μ(2)-acetato-1:2κO:O';1:2κO:O;2:3κO:O';2:3κO:O-bis-(2-amino-7-chloro-5-methyl-1,8-naphthyridine)-1κN,3κN-trizinc(II).

Project description:The title complex, [Zn(3)(C(2)H(3)O(2))(6)(C(9)H(8)ClN(3))(2)], contains three Zn(II) atoms bridged by six acetate ligands. The central Zn(II) ion, located on an inversion centre, is surrounded by six O atoms from acetate ligands in a distorted octa-hedral geometry [Zn-O = 1.9588 (12)-2.1237 (12) Å]. The terminal Zn(II) ions are coordinated by one N atom of 2-amino-7-chloro-5-methyl-1,8-naphthyridine and three O atoms of three acetate ligands in a distorted tetra-hedral geometry. The separation between the central and terminal Zn(II) ions is 3.245 (3) Å.

| S-EPMC2960502 | biostudies-literature

Bis(2,2'-bipyridine)-1κN,N';3κN,N'-hexa-μ-methacrylato-1:2κO:O';2:3κO:O'-(nitrato-2κO,O')-1,3-dicobalt(II)-2-terbium(III).

Project description:In the title trinuclear cobalt-terbium complex, [Co(2)Tb(C(4)H(5)O(2))(6)(NO(3))(C(10)H(8)N(2))(2)], the central Tb(III) and each of the Co(II) ions are bridged by three carboxyl-ate groups of the methacrylate anions. The Tb(III) cation is coordinated by six O atoms from six methacrylate anions and two O atoms from a chelating nitrate anion in a distorted square-anti-prismatic geometry. Each Co(II) ion is coordinated by three O atoms from three methyl-acrylate anions and two N atoms of a 2,2'-bypiridine ligand in a distorted square-pyramidal geometry. In the crystal structure, π-π stacking between the pyridine rings [centroid-centroid distances = 3.682 (8) and 3.760 (8) Å] is observed and weak inter-molecular C-H⋯O hydrogen bonding is also present.

| S-EPMC3007888 | biostudies-literature

μ-4,4'-Bipyridyl-1:2κN:N'-methanol-2κO-tetrakis(tri-tert-butoxy-silanethiol-ato)-1κO,S;2κS-dizinc(II).

Project description:The title compound, [Zn(2)(C(12)H(27)O(3)SSi)(4)(C(10)H(8)N(2))(CH(4)O)], is a binuclear complex with the two Zn(II) atoms linked via a bridging 4,4'-bipyridyl ligand. One of the Zn(II) atoms is penta-coordinated by two O,S-chelating tri-tert-butoxy-silanethiol-ate units and one N atom of a 4,4'-bipyridine ligand, and the other Zn(II) atom is tetra-hedrally coordinated by two tri-tert-butoxy-silanethiol-ate anions acting as monodentate S ligands, the methanol O atom and the other N atom of the 4,4'-bipyridine ligand. This non-symmetrical coordination induces twisting and bending in the 4,4'-bipyridine ligand and introduces chirality into the system. The crystal studied exhibits inversion twinning. One tert-butyl group is disordered approximately equally over two positions.

| S-EPMC2961171 | biostudies-literature

Tetra-?-acetato-?O:O';?O,O':O';?O:O,O'-bis-[(acetato-?O,O')(1,10-phenanthroline-?N,N')europium(III)].

Project description:In the title centrosymmetric dinuclear Eu(III) complex, [Eu(2)(CH(3)COO)(6)(C(12)H(8)N(2))(2)], each Eu(III) cation is coordinated by seven O atoms from five acetate anions and two N atoms from one phenanthroline ligand in a distorted tricapped trigonal-prismatic geometry. Four acetate anions bridge two Eu(III) cations to form the dinuclear complex, with an Eu?Eu distance of 3.9409?(8)?Å. Weak inter-molecular C-H?O hydrogen bonding is present in the crystal structure.

| S-EPMC2979550 | biostudies-literature

Tetra-?-acetato-?O:O';?O,O':O;?O:O,O'-bis-[(acetato-?O,O')(1,10-phenanthroline-?N,N')europium(III)].

Project description:In the title centrosymmetric dinuclear complex, [Eu(2)(CH(3)CO(2))(6)(C(12)H(8)N(2))(2)], the Eu(III) atom is nine-coordinated by two N atoms from a 1,10-phenanthroline ligand and seven O atoms from five acetate ligands (two bidentate, three monodentate). The crystal structure is stabilized by ?-? stacking inter-actions between the pyridine and benzene rings of adjacent mol-ecules, with a centroid-centroid distance of 3.829?(2)?Å.

| S-EPMC3011772 | biostudies-literature

Poly[[(?(2)-acetato-?O,O':O')aqua-bis-(?(3)-isonicotinato-?O:O':N)samarium(III)silver(I)] perchlorate].

Project description:The title compound, {[AgSm(C(6)H(4)NO(2))(2)(CH(3)CO(2))(H(2)O)]ClO(4)}(n), is a three-dimensional heterobimetallic complex constructed from a repeating dimeric unit. Only half of the dimeric moiety is found in the asymmetric unit; the unit cell is completed by crystallographic inversion symmetry. The Sm(III) ion is eight-coordinated by four O atoms of four different isonicotinate ligands, three O atoms of two different acetate ligands, and one O atom of a water mol-ecule. The two-coordinate Ag(I) ion is bonded to two N atoms of two different isonicotinate anions, thereby connecting the disamarium units. In addition, the isonicotinate ligands also act as bridging ligands, generating a three-dimensional network. The coordinated water mol-ecules link the carboxyl-ate group and acetate ligands by O-H?O hydrogen bonding. Another O-H?O hydrogen bond is observed in the crystal structure. The perchlorate ion is disordered over two sites with site-occupancy factors of 0.560?(11) and 0.440?(11), whereas the methyl group of the acetate ligand is disordered over two sites with site-occupancy factors of 0.53?(5) and 0.47?(5).

| S-EPMC3212139 | biostudies-literature

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