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(+)-{1,2-Bis[(2R,5R)-2,5-dimethyl-phospho-lan-1-yl]ethane-?P,P'}(?-cyclo-octa-1,5-diene)rhodium(I) tetra-fluorido-borate.

ABSTRACT: The title compound, [Rh(C(8)H(12))(C(14)H(28)P(2))]BF(4), exhibits a rhodium(I) complex cation with a bidentate bis-phosphine ligand and a bidentate ?(2),?(2)-coordinated cyclo-octa-1,5-diene. Together the ligands create a slightly distorted square-planar cordination environment for the Rh(I) atom. There are three mol-ecules in the asymmetric unit and intra-molecular P-Rh-P bite angles of 82.78?(5), 82.97?(6) and 83.09?(5)° are observed. The dihedral angles between the P-Rh-P and the X-Rh-X planes (X is the centroid of a double bond) are 14.7?(1), 14.8?(1) and 15.3?(1)°. The structure exhibits disorder of one cyclo-octa-diene ligand as well as one BF(4) anion.

SUBMITTER: Schulz S

PROVIDER: S-EPMC2979608 | biostudies-literature | 2010 May

REPOSITORIES: biostudies-literature

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(+)-{1,2-Bis[(2R,5R)-2,5-dimethyl-phospho-lan-1-yl]ethane-κP,P'}(η-cyclo-octa-1,5-diene)rhodium(I) tetra-fluorido-borate.

Schulz Stefan S Drexler Hans-Joachim HJ Heller Detlef D

Acta crystallographica. Section E, Structure reports online 20100529 Pt 6

The title compound, [Rh(C(8)H(12))(C(14)H(28)P(2))]BF(4), exhibits a rhodium(I) complex cation with a bidentate bis-phosphine ligand and a bidentate η(2),η(2)-coordinated cyclo-octa-1,5-diene. Together the ligands create a slightly distorted square-planar cordination environment for the Rh(I) atom. There are three mol-ecules in the asymmetric unit and intra-molecular P-Rh-P bite angles of 82.78 (5), 82.97 (6) and 83.09 (5)° are observed. The dihedral angles between the P-Rh-P and the X-Rh-X plan ...[more]

PMID: 21579351

Similar Datasets

(+)-{1,2-Bis[(2R,5R)-2,5-diethyl-phospho-lan-1-yl]ethane-κP,P'}(η-cyclo-octa-1,5-diene)rhodium(I) tetra-fluoridoborate.

Project description:The title compound, [Rh(C(8)H(12))(C(18)H(36)P(2))]BF(4), exhibits a rhodium(I) complex cation with a bidentate bis-phosphine ligand and a bidentate η(2),η(2)-coordinated cyclo-octa-1,5-diene ligand. The ligands form a slightly distorted square-planar coordination environment for the Rh(I) atom. An intra-molecular P-Rh-P bite angle of 83.91 (2)° is observed. The dihedral angle between the P-Rh-P and the X-Rh-X planes (X is the centroid of a double bond) is 14.0 (1)°. The BF(4) anion is disordered over two positions in a 0.515 (7):0.485 (7) ratio.

| S-EPMC3008980 | biostudies-literature

[(1,2,5,6-?)-Cyclo-octa-1,5-diene]bis-(1-isopropyl-3-methyl-imidazolin-2-yl-idene)rhodium(I) tetra-fluorido-borate.

Project description:In the title compound, [Rh(C(8)H(12))(C(7)H(12)N(2))(2)]BF(4), the square-planar Rh complex cation and the BF(4) (-) anion are both bis-ected by a crystallographic twofold rotation axis. The Rh and B atoms lie on this axis and all others are in general positions. In the crystal, two unique C-H?F hydrogen-bonding inter-actions are present, which involve both imidazolin-2-yl-idene H atoms. They form two separate C(5) motifs, the combination of which is a rippled hydrogen-bonded sheet structure in the ab plane.

| S-EPMC3238752 | biostudies-literature

[(1,2,5,6-η)-Cyclo-octa-1,5-diene](1-ethyl-3-isopropyl-1,3-imidazol-2-yl-idene)(tri-phenyl-phosphane)rhodium(I) tetra-fluorido-borate.

Project description:A new N-heterocyclic cationic rhodium(I) complex with a tetra-fluorido-borate counter-anion, [Rh(C8H14N2)(C8H12)(C18H15P)]BF4, has been prepared and structurally characterized. The cationic complex exhibits a distorted square-planar environment around the rhodium(I) ion. Two connections are made from rhodium(I) to the carbon atom of an N-heterocylic carbene ligand and to the phospho-rus atom of a tri-phenyl-phosphane ligand. The remaining two coordination sites are made via a bidentate inter-action from the two olefinic bonds of cyclo-octa-diene to the rhodium(I) ion. The compound includes an out-sphere tetra-fluorido-borate counter-anion. Within the crystal of the compound exist several weak inter-molecular C-H⋯F inter-actions.

| S-EPMC9462349 | biostudies-literature

(1R,2R,5R,6R,9S,10S,13S,14S)-1,6,7,8,9,14,15,16,17,17-Decachloro-penta-cyclo-[12.2.1.1.0.0]octa-deca-7,15-diene.

Project description:The title compound, C(18)H(14)Cl(10), is a decachlorinated commercial flame retardant. The structure determination confirms the relative stereochemistry. The central eight-membered ring is in a chair-type conformation. In the crystal structure, there are no significant inter-molecular inter-actions and mol-ecules are separated by normal van der Waals distances.

| S-EPMC2961698 | biostudies-literature

Bis[1,2-bis-(dimethyl-phosphino)ethane-κP,P']rhodium(I) dichlorido[(1,2,5,6-η)-1,5-cyclo-octa-diene]rhodium(I).

Project description:In the title complex, [Rh(C(6)H(16)P(2))(2)][RhCl(2)(C(8)H(12))], the asymmetric unit contains two [Rh(dmpe)(2)] [dmpe = 1,2-bis-(dimethyl-phosphino)ethane] half-cations, lying on inversion centers, and an [RhCl(2)(cod)](-) (cod = 1,5-cyclo-octa-diene) anion, wherein Rh is coordinated by two chloride ligands and two olefinic π-bonds of the cyclo-octa-diene ligand. The Rh atoms in the cations and anion exhibit square-planar coordination and are separated without any unusual inter-actions.

| S-EPMC2959718 | biostudies-literature

(4-Butyl-1-methyl-1,2,4-triazol-5-yl-idene)[(1,2,5,6-η)-cyclo-octa-1,5-diene](tri-phenyl-phosphane)iridium(I) tetra-fluorido-borate.

Project description:A new triazole-based N-heterocyclic cationic carbene iridium(I) complex with a tetra-fluorido-borate counter-anion, [Ir(C8H12)(C7H13N3)(C18H15P)]BF4, has been synthesized and structurally characterized. The IrI atom of the cationic complex has an expected square-planar coordination environment with unexceptional bond lengths. There are several close F⋯H contacts between the cations and the anions in the range 2.36-2.58 Å, stabilizing the orientation of the out-sphere [BF4 -] counter-anion. In the crystal, C-H⋯π(ring) inter-actions are observed that orient the phenyl rings of the tri-phenyl-phosphane ligands.

| S-EPMC9462289 | biostudies-literature

(1R,2R,5R,6S,9R,10S,13S,14S,18R)-1,6,7,8,9,14,15,16,17,17,18-Undeca-chloro-penta-cyclo-[12.2.1.1.0.0]octa-deca-7,15-diene.

Project description:The title compound, C(18)H(13)Cl(11), is an undecachlorinated commercial flame retardant. The asymmetric unit contains two independent half-mol-ecules. The complete mol-ecules are generated by crystallographic inversion symmetry, causing the terminal H atoms and one of the Cl atoms to be disordered equally over two sites in each mol-ecule. The central eight-membered rings are in chair-type conformations. In the crystal structure, there is a single weak inter-molecular C-H?Cl hydrogen bond.

| S-EPMC2961815 | biostudies-other

[(1,2,5,6-η)-1,5-Cyclo-octa-diene](1-isopropyl-3-methyl-imidazolin-2-yl-idene)(triphenyl-phosphine)iridium(I) tetra-fluorido-borate dichloro-methane solvate.

Project description:In the title compound, [Ir(C(8)H(12))(C(7)H(12)N(2))(C(18)H(15)P)]BF(4)·CH(2)Cl(2), the Ir(I) atom has a square-planar conformation with normal bond lengths. One of the phenyl rings, and the solvent dichloro-methane mol-ecule, were refined using separate two part disorder models, each in an approximately 1:1 ratio.

| S-EPMC3008037 | biostudies-literature

4,4'-[(2R*,3R*,4R*,5R*)-3,4-Dimethyl-tetra-hydro-furan-2,5-di-yl]diphenol.

Project description:The title mol-ecule, C(18)H(20)O(3), is a furan-oid lignan extracted from the leaves of Larrea tridentata. The relative absolute configuration for the four chiral centers was established, showing that this compound is 4-epi-larreatricin, which has been previously reported in the literature. The mol-ecule displays noncrystallographic C(2) symmetry, with the methyl and phenol substituents alternating above and below the mean plane of the furan ring. The conformation of this ring is described by the pseudorotation phase angle P = 171.3° and the maximum out-of-plane pucker ?(m) = 37.7°. These parameters indicate that the furan ring adopts the same conformation as the ribose residues in B-DNA. The packing is dominated by inter-molecular O-H?O hydrogen bonds. The phenol hy-droxy groups form chains in the [110] direction and these chains inter-act via O-H?O(furan) contacts.

| S-EPMC3470375 | biostudies-literature

Chlorido(?-cyclo-octa-1,5-diene)(N,N'-diethyl-thio-urea-?S)rhodium(I).

Project description:In the title rhodium(I) complex, [RhCl(C(8)H(12))(C(5)H(12)N(2)S)], N,N'-diethyl-thio-urea acts as a monodenate S-donor ligand. The rhodium(I) coordination sphere is completed by the Cl atom and the COD [= 1,5-cyclo-octa-diene] ligand inter-acting through the ?-electrons of the double bonds. If the midpoints of these two bonds are taken into account, the Rh atom exhibits a distorted square-planar coordination. The syn conformation of the N,N'-diethyl-thio-urea ligand with respect to the Cl atom is stabilized by an intra-molecular N-H?Cl hydrogen bond. A weak inter-molecular N-H?Cl inter-action links mol-ecules along the a axis.

| S-EPMC3009226 | biostudies-literature

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