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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).

ABSTRACT: 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).

SUBMITTER: Chen LQ

PROVIDER: S-EPMC2969283 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature

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

Chen Lei-Qi LQ Guo Jian-Nan JN Xuan Wei-Min WM Lin Yi-Ji YJ Zhang Hui H

Acta crystallographica. Section E, Structure reports online 20090606 Pt 7

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). ...[more]

PMID: 21582651

Similar Datasets

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).

Project description: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.

| S-EPMC2969912 | 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.

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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).

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(4'-All-yloxy-2,2':6',2''-terpyridine-?N,N',N'')(dibenzoyl-methanido-?O,O')bis-(nitrato-?O,O')neodymium(III) acetonitrile solvate.

Project description:The title complex, [Nd(C(15)H(11)O(2))(NO(3))(2)(C(18)H(15)N(3)O)]·CH(3)CN or [Nd(altpy)(dbm)(NO(3))(2)]·CH(3)CN (altpy = 4'-all-yl-oxy-2,2':6',2''-terpyridine, dbm = dibenzoyl-methanide anion), has been synthesized from 4'-all-yloxy-2,2':6',2''-terpyridine, dibenzoyl-methanate and neodymium nitrate. The Nd(3+) atom is nine-coordinated by two O atoms from the bidentate dbm ligand, three N atoms from the tridentate altpy ligand and four O atoms from two nitrate anions that act as bidentate ligands and occupy mutually trans sites in a distorted monocapped square-anti-prismatic geometry.

| S-EPMC2980225 | biostudies-literature

2-Amino-7,7-dimethyl-5-oxo-4-(p-tol-yl)-5,6,7,8-tetra-hydro-4H-chromene-3-carbonitrile.

Project description:In the title mol-ecule, C(19)H(20)N(2)O(2), the cyclo-hexene ring adopts a sofa conformation, while the pyran ring adopts a flattened boat conformation. In the crystal, mol-ecules are linked by N-H?N and N-H?O hydrogen bonds, forming a two-dimensional network parallel to (010).

| S-EPMC3415029 | biostudies-literature

2-Anilino-3-benzoyl-4-(2,5-dichloro-phen-yl)-7,7-dimethyl-5-oxo-5,6,7,8-tetra-hydro-4H-benzo[b]pyran.

Project description:The title compound, C(30)H(25)Cl(2)NO(3), was prepared by the reaction of 3-oxo-N,3-diphenyl-propane-thio-amide, 2,5-dichloro-benzaldehyde and 5,5-dimethyl-1,3-cyclo-hexa-nedione (1:1:1) in ethanol. The cyclohexene ring adopts a half-chair conformation. The crystal structure exhibits intra-molecular N-H⋯O and C-H⋯O, and inter-molecular C-H⋯O inter-actions.

| S-EPMC2960223 | biostudies-literature

2-Amino-4-(4-chloro-phen-yl)-7,7-dimethyl-5-oxo-5,6,7,8-tetra-hydro-4H-chromene-3-carbonitrile propan-2-one monosolvate.

Project description:In the title compound, C(18)H(17)ClN(2)O(2)·C(3)H(6)O, the 4H-pyran ring is nearly planar [maximum deviation = -0.108?(1)?Å] and the cyclo-hexene ring is puckered [puckering parameters Q(T) = 0.4596?(17)?Å, ? = 55.9?(2)° and ? = 226.5?(3)°]. The 4H-pyran ring is approximately perpendicular to the benzene ring [dihedral angle = 84.35?(7)°] and is almost coplanar with the mean plane of the cyclo-hexene ring [dihedral angle = 8.64?(7)°]. In the crystal, inversion-related main mol-ecules are linked into dimers by pairs of N-H?N hydrogen bonds, generating an R(2) (2)(12) graph-set motif. These dimers are further connected by N-H?O and C-H?N hydrogen bonds, forming a layer structure extending parallel to the (011) plane. In addition, the mol-ecules within the layers inter-act with each other via C-H?? inter-actions.

| S-EPMC3379514 | biostudies-literature

Tris(tetra-hydro-furan-?O)tris-[tris-(thio-phen-2-yl)methano-lato-?O]terbium(III) tetra-hydro-furan monosolvate.

Project description:In the mononuclear title compound, [Tb(C(13)H(9)OS(3))(3)(C(4)H(8)O)(3)]·C(4)H(8)O, the lanthanide cation is located on a threefold rotation axis and is surrounded by electron-rich ligands in an approximately octa-hedral geometry. One of the thienyl groups and the bound THF are disordered with 0.5:0.5 occupancy. The free THF is disordered around the threefold axis.

| S-EPMC3238632 | biostudies-literature

One-step catalytic asymmetric synthesis of all-syn deoxypropionate motif from propylene: Total synthesis of (2R,4R,6R,8R)-2,4,6,8-tetramethyldecanoic acid.

Project description:In nature, many complex structures are assembled from simple molecules by a series of tailored enzyme-catalyzed reactions. One representative example is the deoxypropionate motif, an alternately methylated alkyl chain containing multiple stereogenic centers, which is biosynthesized by a series of enzymatic reactions from simple building blocks. In organic synthesis, however, the majority of the reported routes require the syntheses of complex building blocks. Furthermore, multistep reactions with individual purifications are required at each elongation. Here we show the construction of the deoxypropionate structure from propylene in a single step to achieve a three-step synthesis of (2R,4R,6R,8R)-2,4,6,8-tetramethyldecanoic acid, a major acid component of a preen-gland wax of the graylag goose. To realize this strategy, we focused on the coordinative chain transfer polymerization and optimized the reaction condition to afford a stereo-controlled oligomer, which is contrastive to the other synthetic strategies developed to date that require 3-6 steps per unit, with unavoidable byproduct generation. Furthermore, multiple oligomers with different number of deoxypropionate units were isolated from one batch, showing application to the construction of library. Our strategy opens the door for facile synthetic routes toward other natural products that share the deoxypropionate motif.

| S-EPMC4801241 | biostudies-literature

2-Amino-4-(4-meth-oxy-phen-yl)-7,7-di-methyl-5-oxo-5,6,7,8-tetra-hydro-4H-chromene-3-carbonitrile propan-2-one monosolvate.

Project description:In the crystal structure of the title compound, C(19)H(20)N(2)O(3)·C(3)H(6)O, mol-ecules are linked into inversion dimers with an R(2) (2)(12) motif by pairs of N-H⋯N hydrogen bonds. These dimers are further connected into chains running along the a axis by N-H⋯O hydrogen bonds. C-H⋯N and C-H⋯π inter-actions also feature in the packing. The cyclohexene ring adopts nearly an envelope conformation [puckering parameters are Q(T) = 0.456 (2) Å, θ = 54.6 (3)° and ϕ = 225.2 (3)°].

| S-EPMC3394003 | biostudies-literature

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