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(3-Benzoyl-1,7,7-trimethyl-bicyclo-[2.2.1]heptan-2-olato-κO,O)bis-[2-(2-pyrid-yl)phenyl-κC,N]iridium(III).

ABSTRACT: The title compound, [Ir(C(11)H(8)N)(2)(C(17)H(19)O(2))], has an octa-hedral coordination geometry around the Ir(III) atom, retaining the cis-C,C,trans-N,N chelate disposition of the two 2-phenyl-pyridine ligands. The chelate rings are nearly mutually perpendicular [the inter-planar angles range from 85.48 (17) to 89.17 (19)°]. The two 2-(2-pyrid-yl)phenyl ligands are approximately planar, with the plane of the phenyl ring being inclined to that of the pyridine ring by 2.3 (3) and 5.1 (3)° in the two ligands. The inter-planar angle between the phenyl ring in 3-benzoyl-camphor and the IrO(2)C(3) chelate ring is 35.5 (2)°.

SUBMITTER: Luo K

PROVIDER: S-EPMC3246943 | biostudies-literature |

REPOSITORIES: biostudies-literature

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[(1R,4S)-(+)-3-Benzoyl-1,7,7-trimethyl-bicyclo-[2.2.1]heptan-2-olato-?O,O](?-norbornadiene)rhodium(I).

Project description:In the title complex mol-ecule, [Rh(C(17)H(19)O(2))(C(7)H(8))], the rhodium(I) metal centre is coordinated by the O atoms of a benzoyl-camphorate anion and the C=C bonds of the norbornadiene mol-ecule into a slightly distorted square-planar coordination geometry. The six-membered chelate ring is essentially planar (r.m.s. deviation = 0.0378?Å) and forms a dihedral angle of 31.67?(11)° with the phenyl ring.

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[(1R)-3-Benzoyl-1,7,7-trimethyl-bicyclo-[2.2.1]heptan-2-onato-?O,O']chlorido(?-p-cymene)ruthenium(II).

Project description:The asymmetric unit of the title compound, [RuCl(C(10)H(14))(C(17)H(19)O(2))], contains two diastereomers. In both, the Ru(II) ion has a tetra-hedral coordination, formed by two O atoms of the camphor-derived ligand and the p-cymene and Cl ligands. In the crystal structure, weak inter-molecular C-H?Cl inter-actions link the mol-ecules into columns propagated along [010].

| S-EPMC2983648 | biostudies-literature

N-(3-Amino-bicyclo-[2.2.1]heptan-2-yl)-4-methyl-benzene-sulfonamide.

Project description:In the title compound, C(14)H(20)N(2)O(2)S, the sulfonamide O atoms lie to one side of the benzene ring and the amino-bicyclo-hepta-nyl to the other side [C(ar)-S-N-C torsion angle = -57.93?(11)°; ar = aromatic]. An intra-molecular N-H?N hydrogen bond is formed. In the crystal, a supra-molecular chain is formed along the b axis via N-H?O and N-H?N hydrogen bonds.

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Project description:7-Aza-bicyclo-[2.2.1]heptane (7-aza-norbornane) is a bridged heterocyclic nucleus found in epibatidine, the alkaloid isolated from the skin of the tropical poison frog Epipedobates tricolor. Since epibatidine is known as one of the most potent acetyl-choline nicotinic receptor agonists, a plethora of literature has been devoted to this alkaloid. However, there are no structural data on the unsubstituted 7-aza-norbornane, the parent bicyclic ring of epibatidine and its derivatives. We herein present the structural characterization of the 7-aza-bicyclo-[2.2.1]heptane parent ring as its hydro-chloride salt, namely 7-aza-bicyclo-[2.2.1]heptan-7-ium chloride, C6H12N+·Cl-. The compete cation is generated by a crystallographic mirror plane with the N atom lying on the mirror, as does the chloride anion. In the crystal, the cations are linked to the anions by N-H?Cl hydrogen bonds, which generate [001] chains.

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[(1S,2S,3R,4R)-3-Hydr-oxy-4,7,7-tri-methyl-bicyclo-[2.2.1]heptan-2-yl]methyl[(E)-3-(trimethyl-silyl)prop-2-enyl]selen-onium bromide.

Project description:The title compound, a seleno-nium bromide, C(17)H(33)OSeSi(+)·Br(-), was obtained from the reaction of enanti-omerically pure 4,7,7-trimethyl-2-methyl-selanylbicyclo-[2.2.1]heptan-3-ol and (3-bromopropen-yl)trimethyl-silane in acetone. Due to the chiral bicyclic substituent, the crystal structure is not centrosymmetric and has no symmetry plane, with four chiral C atoms in the cation. The asymmetric unit contains one seleno-nium cation and one bromide anion. C-H?Br and O-H?Br hydrogen bonds link the ions, forming a one-dimensional R-helical chain-like supra-molecular structure.

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Di-μ-acetato-κO:O'-bis-{[2-(2-pyrid-yl)phenyl-κC,N]palladium(II)}.

Project description:In the title complex, [Pd(2)(C(11)H(8)N)(2)(C(2)H(3)O(2))(2)], each Pd(II) ion has a distorted square-planar environment, being surrounded by one C, one N and two O atoms. The Pd⋯Pd distance is 2.8721 (3) Å. In the crystal structure, the mol-ecules are linked by inter-molecular C-H⋯O inter-actions.

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Synthesis, crystal structure and Hirshfeld analysis of a crystalline compound comprising a 1/1 mixture of 1-[(1R,4S)- and 1-[(1S,4R)-1,7,7-trimethyl-2-oxobi-cyclo[2.2.1]heptan-3-yl-idene]hydrazinecarbo-thio-amide.

Project description:The equimolar reaction between a racemic mixture of (R)- and (S)-camphorquinone with thio-semicarbazide yielded the title compound, C11H17N3OS [common name: (R)- and (S)-camphor thio-semicarbazone], which maintains the chirality of the methyl-ated chiral carbon atoms and crystallizes in the centrosymmetric space group C2/c. There are two mol-ecules in general positions in the asymmetric unit, one of them being the (1R)-camphor thio-semicarbazone isomer and the second the (1S)- isomer. In the crystal, the mol-ecular units are linked by C-H?S, N-H?O and N-H?S inter-actions, building a tape-like structure parallel to the (01) plane, generating R 2 1(7) and R 2 2(8) graph-set motifs for the H?S inter-actions. The Hirshfeld surface analysis indicates that the major contributions for crystal cohesion are from H?H (55.00%), H?S (22.00%), H?N (8.90%) and H?O (8.40%) inter-actions.

| S-EPMC6944080 | biostudies-literature

Bicyclo-[2.2.1]hept-7-yl p-bromo-benzoate.

Project description:The title compound, C(14)H(15)BrO(2), contains a sterically unencumbered norbornyl group. The dihedral angle between the plane of the carboxyl-ate group and the mean plane of the adjacent benzene ring is 5.3?(2)°. The dihedral angle between the plane of the carboxyl-ate group and the norbornyl methano C-O bond is 4.5?(1)°, the methano C atom deviating by 0.141?(2)?Å from this plane. In the crystal, mol-ecules pack as pairs of enanti-omers, with a distance of 3.747?(1)?Å between the centroids of nearest parallel benzene rings.

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Project description:In the title complex, [PdBr(2)(C(7)H(8))], the Pd(II) ion lies in a distorted square-planar environment defined by the two Br atoms and the mid-points of the two ?-coordinated double bonds of bicyclo-[2.2.1]hepta-2,5-diene. The complex is disposed about a crystallographic mirror plane parallel to the ac plane passing through the Pd, Br atoms and the centre of the diene ligand.

| S-EPMC2969277 | biostudies-literature

The galla[1]ferrocenophane {[dimeth-yl(2-pyrid-yl)sil-yl]bis-(trimethyl-silyl)methyl-κC,N}(ferrocene-1,1'-di-yl)gallium(III).

Project description:The title compound, [GaFe(C(5)H(4))(2)(C(14)H(28)NSi(3))] or [{(2-H(4)C(5)N)Me(2)Si}(Me(3)Si)(2)C]Ga(C(5)H(4))(2)Fe, a galla[1]ferrocenophane, crystallizes with two independent mol-ecules in the asymmetric unit. In these strained sandwich compounds, the angles between the planes of the two π-ligands are 15.4 (2) and 16.4 (2)°, with gallium in a distorted tetrahedral coordination environment.

| S-EPMC2960990 | biostudies-literature

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