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Tris(dibenzoyl-methanido-κO,O')[(6S,8S)-(+)-7,7-dimethyl-3-(2-pyrid-yl)-5,6,7,8-tetra-hydro-6,8-methano-isoquinoline-κN,N']gadolinium(III).

ABSTRACT: In the title compound, [Gd(C(15)H(11)O(2))(3)(C(17)H(18)N(2))], the Gd(III) atom is coordinated by six O atoms from three β-diketonate ligands and two N atoms from a chiral ligand L(S),(S)-(+)-7,7-dimethyl-3-(2-pyrid-yl)-5,6,7,8-tetra-hydro-6,8-methano-iso-quinoline, in a coordination geometry best described as distorted square-anti-prismatic.

SUBMITTER: Li XL

PROVIDER: S-EPMC2969912 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Tris(dibenzoyl-methanido-?O,O')[(6R,8R)-(-)-7,7-dimethyl-3-(2-pyrid-yl)-5,6,7,8-tetra-hydro-6,8-methano-isoquinoline-?N,N']terbium(III).

Project description:In the title compound, [Tb(C(15)H(11)O(2))(3)(C(17)H(18)N(2))], the 7,7-dimethyl-3-(2-pyrid-yl)-5,6,7,8-tetra-hydro-6,8-methano-iso-quin-oline (L(RR)) ligand coordinates to Tb(III) through the two N atoms of the heterocycle. The metal centre is also chelated by three deprotonated 1,3-diphenyl-propane-1,3-dione (dbm) ligands, forming enanti-omerically pure [Tb(dbm)(3)L(RR)]. The Tb(III) atom is located in a distorted square anti-prism of eight coordinating atoms (six O and two N atoms).

| S-EPMC2969283 | biostudies-literature

(4'-All-yloxy-2,2':6',2''-terpyridine)(dibenzoyl-methanido)dinitratoerbium(III) acetonitrile solvate.

Project description:The title complex, [Er(C(15)H(11)O(2))(NO(3))(2)(C(18)H(15)N(3)O)]·CH(3)CN, has been synthesized from 4'-all-yloxy-2,2':6',2''-terpyridine (altpy), dibenzoyl-methane and erbium nitrate. The distorted monocapped square anti-prismatic coordination polyhedron is formed by a bidentate dibenzoyl-methanide residue, a tridentate altpy ligand and two nitrate anions that act as bidentate ligands and occupy mutually trans sites.

| S-EPMC2979846 | biostudies-other

[N'-(3-Eth-oxy-2-oxidobenzyl-idene-κO)-4-methyl-benzohydrazidato-κO,N'](methano-lato-κO)oxidovanadium(V).

Project description:The title oxidovanadium(V) complex, [V(C(17)H(16)N(2)O(3))(CH(3)O)O], was obtained by the reaction of 3-eth-oxy-2-hy-droxy-benzaldehyde, 4-methyl-benzohydrazide and vanadyl sulfate in methanol. The V(V) atom is coordinated by the O,N,O'-tridentate Schiff base ligand, one methano-late O atom and one oxide O atom, forming a distorted VO(4)N square-pyramidal coordination geometry. The oxide O atom lies at the apex of the square pyramid and the N atom of the ligand and the methano-late O atom are trans. The dihedral angle between the benzene rings of the ligand is 1.8 (3)°.

| S-EPMC3246962 | biostudies-literature

(Methanol-κO)(methano-lato-κO)oxido{N'-[1-(2-oxidonaphthalen-1-yl-κO)ethyl-idene]nicotinohydrazidato-κN',O}vanadium(V).

Project description:The title oxovanadium(V) complex, [V(C(18)H(13)N(3)O(2))(CH(3)O)O(CH(3)OH)], was obtained by the reaction of 1-(2-hy-droxy-naphthalen-1-yl)ethanone, nicotinohydrazide and vanadyl sulfate in methanol. The V(V) atom is six-coordinated by the N,N,O-tridentate Schiff base ligand, one methano-late O atom, one methanol O atom and one oxide O atom, forming a distorted octa-hedral geometry. The methanol O atom lies trans to the V=O group. The dihedral angle between the pyridine ring and the naphthalene ring system is 31.52 (10)°. In the crystal, inversion dimers linked by pairs of O-H⋯N hydrogen bonds occur.

| S-EPMC3246913 | biostudies-literature

4-(4-Methoxy-phen-yl)-7,7-dimethyl-5-oxo-5,6,7,8-tetra-hydrochromene-2,5-dione.

Project description:The title compound, C(18)H(20)O(4), was synthesized by the reaction of 4-methoxy-benzaldehyde, 2,2-dimethyl-1,3-dioxane-4,6-dione and 5,5-dimethyl-cyclo-hexane-1,3-dione with triethyl-benzyl-ammonium chloride in water as a green solvent. In the mol-ecule of the title compound, the six-membered pyran-one ring of the hexa-hydro-coumarin system has a screw-boat conformation while that of the dimethyl-cyclo-hexenone system has a distorted envelope conformation. The CMe(2) portion of this ring is disordered over two positions with refined occupancies of 0.721 (7) and 0.279 (7).

| S-EPMC2972097 | biostudies-literature

{4-Bromo-2-[(5-chloro-2-oxidophen-yl)imino-methyl]-phenolato-κO,N,O'}(methanol-κO)(methano-lato-κO)-oxidovanadium(V).

Project description:The title Schiff base complex, [V(C(13)H(7)BrClNO(2))(CH(3)O)O(CH(3)OH)], features a vanadyl group, a tridentate Schiff base ligand, and coordinated methanol and methano-late ligands. The NO(5) donor set is based on a distorted octa-hedron. Helical supra-molecular chains along [010] are found in the crystal structure mediated by O-H⋯O hydrogen bonds formed between the coordinating methanol mol-ecule and the phenolate O atom of the chloro-benzene residue.

| S-EPMC3274936 | biostudies-literature

(4R,5R,6S,7R,8S,9R,10S,13S)-7,8?-Epoxy-momilactone-A.

Project description:The title compound, C(20)H(26)O(4), was extracted from Leucas Urticifolia, a wild Lamiaceae herb distributed in the Punjab, Baluchistan, Sindh and the Rajputana desert of Pakistan. The plant is utilized for various medicinal applications by the local community. The title compound is based on the pimarane-diterpene skeleton. The mol-ecule exhibits an ep-oxy ring fused to momilactone-A, leading to a penta-cyclic mol-ecular structure. The absolute configuration was assigned by comparison with the crystal structure of momilactone, but needs further verification. The crystal structure is governed by four inter-molecular hydrogen-bond inter-actions of the C-H?O type.

| S-EPMC2961202 | biostudies-other

(6S,7S,8S,8aS)-6-Ethyl-3-oxo-1,2,3,5,6,7,8,8a-octa-hydro-indolizine-7,8-diyl diacetate.

Project description:In the mol-ecular structure of the title compound, C(14)H(21)NO(5), the six-membered ring of the indolizine moiety adopts a chair conformation. There are two independent mol-ecules in the asymmetric unit. The oxopyrrolidine ring attached to the indolizine ring system is nearly planar, with mean deviations of 0.018?(3) and 0.010?(3)?Å for the two mol-ecules. The absolute configuration of the title compound was assigned from the synthesis.

| S-EPMC3295453 | biostudies-literature

(Methano-lato-κO)[N'-(3-meth-oxy-2-oxidobenzyl-idene-κO)-4-nitro-benzo-hydrazidato-κN',O]oxidovanadium(V).

Project description:The title oxidovanadium(V) complex, [V(C(15)H(11)N(3)O(5))(CH(3)O)O], was obtained by the reaction of 2-hy-droxy-3-meth-oxy-benzaldehyde, 4-nitro-benzohydrazide and vanadyl sulfate in methanol. The V(V) atom is five-coordinated by the two O and one N donor atoms of the Schiff base ligand, one methano-late O atom and one oxido O atom, forming a distorted square-pyramidal geometry.

| S-EPMC3246927 | biostudies-literature

catena-Poly[[diaqua-bis-(isoquinoline-κN)cobalt(II)]-μ-succinato-κO:O].

Project description:In the title compound, [Co(C(4)H(4)O(4))(C(9)H(7)N)(2)(H(2)O)(2)](n), the Co(II) cation, located on an inversion center, is coordinated by two succinate anions, two isoquinoline ligands and two water mol-ecules in a distorted octa-hedral geometry. The succinate anion, located across another inversion center, bridges the Co cations, forming polymeric chains running along the b axis. The partially overlapped arrangement of parallel isoquinoline ring systems of adjacent polymeric chains and the shorter face-to-face distance of 3.402 (6) Å indicates the existence of weak π-π stacking in the crystal structure. Classical intra- and inter-molecular O-H⋯O hydrogen bonding and weak non-classical inter-molecular C-H⋯O hydrogen bonding help to stabilize the crystal structure.

| S-EPMC3006983 | biostudies-literature

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