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μ-Oxido-bis-[(2-chloro-nicotinato-κO)triphenyl-anti-mony(V)].

ABSTRACT: A new dinuclear triphenyl-anti-mony(V) derivative with an oxide bridge, [Sb(2)(C(6)H(5))(6)(C(6)H(3)ClNO(2))(2)O], has been synthesized. Each Sb atom is five-coordianted by three C atoms and two O atoms in a distorted trigonal-bipyramidal geometry. Metal centers are bridged by a μ(2)-oxide functionality, and phenyl substituents on Sb atoms are in an staggered arrangement. The Sb-O-Sb bridge displays a bent geometry with an angle of 165.1 (4)°. Mol-ecules inter-act in the crystal through weak C-H⋯O and C-H⋯N inter-molecular hydrogen bonds.

SUBMITTER: Quan L

PROVIDER: S-EPMC2967930 | biostudies-literature |

REPOSITORIES: biostudies-literature

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?-Oxido-bis-[(chloro-acetato-?O)-triphenyl-anti-mony(V)].

Project description:The Sb atom in the centrosymmetric title complex, [Sb(2)(C(6)H(5))(6)(C(2)H(2)ClO(2))(2)O], has a distorted trigonal-bipyramidal geometry. The bridging oxide O atom occupies one of the axial sites, while the O atom of the chloroacetate ligand occupies the other.

| S-EPMC2960346 | biostudies-literature

Chlorido(2-chloro-nicotinato)triphenyl-anti-mony(V).

Project description:In the title complex, [Sb(C(6)H(5))(3)(C(6)H(3)ClNO(2))Cl], the Sb center has a close to ideal trigonal-bipyramidal geometry, with the phenyl ligands in equatorial positions and the chloride and a carboxyl-ate O atom in axial positions. Weak C-H?O contacts generate dimeric units via crystallographic inversion centres.

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Bis(2-amino-4-chloro-benzoato)triphenyl-anti-mony(V).

Project description:The title complex mol-ecule, [Sb(C(6)H(5))(3)(C(7)H(5)ClNO(2))(2)], possesses crystallographically imposed C(2) symmetry. The Sb atom exhibits a trigonal-bipyramidal geometry with the axial positions occupied by the O atoms of two carboxyl-ate groups and the equatorial positions by the C atoms of the phenyl groups. Intra-molecular N-H?O and C-H?O hydrogen bonds occur.

| S-EPMC2971026 | biostudies-literature

Bis(5-amino-2-chloro-benzoato-?O)triphenyl-anti-mony(V).

Project description:In the title compound, [Sb(C(6)H(5))(3)(C(7)H(5)ClNO(2))(2)], the Sb center has a distorted trigonal-bipyramidal geometry, with the O atoms of two carboxyl-ate groups in axial positions and the C atoms of the phenyl groups in equatorial positions. Intra-molecular C-H?O inter-actions occur. The mol-ecules are connected by inter-molecular N-H?O, N-H?N and C-H?O hydrogen-bonding inter-actions and C-H?? stacking inter-actions, forming a three-dimensional supra-molecular framework.

| S-EPMC2971366 | biostudies-literature

Di-μ-nicotinato-κN:O;κO:N-bis-[aqua-(ethyl-enediamine-κN,N')(nicotinato-κN)cadmium(II)] dihydrate.

Project description:The dinuclear mol-ecule of the title compound, [Cd(2)(C(6)H(4)NO(2))(4)(C(2)H(8)N(2))(2)(H(2)O)(2)]·2H(2)O, lies on an inversion centre and forms 12-membered (CdNC(3)O)(2) metallacycles with the two Cd(2+) ions bridged by two nicotinate ligands. Both Cd(2+) ions display coordination polyhedra with a distorted octa-hedral geometry that includes two pyridine N atoms from bridging and terminal nicotinate anions, two amine N atoms from chelating ethylene-diamine ligands, carboxylate O atoms from bridging nicotinate anions and water O atoms. Inter-molecular O-H⋯O and N-H⋯O hydrogen bonds result in the formation of a three-dimensional network, and π-π stacking inter-actions are observed between symmetry-related pyridine rings of bridging as well as terminal nicotinate anions (the centroid-centroid distances are 3.59 and 3.69 Å, respectively, and the distances between parallel planes of the stacked pyridine rings are 3.53 and 3.43 Å, respectively). The two methylene groups of the ethylene-diamine ligand are disordered over two positions; the site occupancy factors are ca 0.8 and 0.2.

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Project description:The mol-ecule of the title compound, [Sb(C(6)H(5))(3)(C(7)H(6)NO(2))(2)], is located on a twofold axis defined by the metal center and two C atoms of a coordinated phenyl group. The Sb center has a slightly distorted trigonal-bipyramidal geometry, with the axial positions occupied by the O atoms of symmetry-related 2-hydroxy-benzaldehyde oximate ligands. An intra-molecular O-H?N inter-action is present. The crystal structure is stabilized by C-H?O inter-actions.

| S-EPMC2971330 | biostudies-literature

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Project description:In the title compound, [Sb(C(6)H(5))(3)(C(8)H(4)F(3)O(3))(2)], the Sb atom lies on an inversion centre and exhibits a trigonal bipyramidal geometry with the axial positions occupied by the O atoms of two carboxyl-ate groups and the equatorial positions occupied by C atoms of the phenyl groups. Intra-molecular C-H?O hydrogen bonds stabilize the mol-ecular conformation. In the crystal structure, mol-ecules are connected by inter-molecular C-H?O hydrogen-bonding inter-actions, forming a layer structure parallel to (01).

| S-EPMC2959366 | biostudies-literature

μ-Oxido-bis-[bis-(phenanthroline-κN,N')(sulfato-κO)iron(III)] octa-hydrate.

Project description:The title complex, [Fe(2)O(SO(4))(2)(C(12)H(8)N(2))(4)]·8H(2)O, contains two unique Fe(III) cations, one oxide anion, four 1,10-phenanthroline (phen) ligands, two coordinated sulfate anions and eight lattice water mol-ecules. Each Fe(III) ion has an approximate octa-hedral geometry, coordinated by four N atoms from two phen mol-ecules, two O atoms from oxide and sulfate anions, respectively. The parallel phen mol-ecules form two-dimensional supermolecules through π-π stacking inter-actions [centroid-centroid distances = 3.684 (3), 3.711 (3), 3.790 (3), 3.847 (3), 3.746 (3), 3.732 (3) and 3.729 (3) Å]. This architecture is further stabilized by O-H⋯O hydrogen bonds involving the lattice water mol-ecules and sulfate O atoms.

| S-EPMC3246986 | biostudies-literature

Hexa-μ(2)-acetato-κO:O'-(azido-κN)bis-(methanol-κO)-μ(3)-oxido-trichromium(III) methanol monosolvate.

Project description:In the crystal structure of the title complex, [Cr(3)(CH(3)CO(2))(6)(N(3))O(CH(3)OH)(2)]·CH(3)OH, the trinuclear core has a central O atom; two methanol mol-ecules and an azide ion are coordinated to the Cr(III) atoms in the core. The three Cr(III) atoms form vertices of a nearly equilateral triangle. Each of the six acetate carboxyl-ate groups bridges a Cr-O-Cr fragment. In the crystal, the molecules inter-act with methanol solvent mol-ecules through O-H⋯O and O-H⋯N hydrogen bonds, forming a two-dimensional hydrogen-bonded network parallel to (100).

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Triphenyl-bis[4-(trifluoro-meth-yl)benzoato-?O]anti-mony(V).

Project description:The title complex, [Sb(C(6)H(5))(3)(C(8)H(4)F(3)O(2))(2)], is located on a twofold axis defined by the metal center and two C atoms of a coordinated phenyl group. The environment of the Sb atom approximates a trigonal-bipyramidal geometry, with the axial positions occupied by the O atoms of symmetry-related 4-(trifluoro-meth-yl)benzoate ligands. In this ligand, the CF(3) group is disordered by rotation about the C-C bond and the F atoms are distributed over two sets of sites with occupancies of 0.62?(3) and 0.38?(3). In the crystal, mol-ecules are assembled in a three-dimensional framework through weak C-H?O hydrogen bonds.

| S-EPMC2969530 | biostudies-literature

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