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(+)-{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.

ABSTRACT: 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.

SUBMITTER: Schulz S

PROVIDER: S-EPMC3008980 | biostudies-literature |

REPOSITORIES: biostudies-literature

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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.

Project description: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.

| S-EPMC2979608 | biostudies-literature

Bis[1,2-bis-(dimethyl-phosphino)ethane-?P,P']rhodium(I) dichlorido[(1,2,5,6-?)-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 ?-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

(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

{2-[Bis(2,4-di-tert-butyl-phen-oxy)phosphan-yloxy-κP]-3,5-di-tert-butyl-phenyl-κC}[(1,2,5,6-η)-cyclo-octa-1,5-diene]rhodium(I) toluene monosolvate.

Project description:The reaction of (η(3)-all-yl)[(1,2,5,6-η)-cyclo-octa-1,5-diene]rhodium(I) with tris-(2,4-di-tert-butyl-phen-yl)phosphite in toluene produces the title compound, [Rh(C(42)H(62)O(3)P)(C(8)H(12))]·C(7)H(8), by spontaneous metallation at one of the nonsubstituted phenyl ortho-C atoms of the phosphite mol-ecule. The coordination geometry at the Rh(I) ion is distorted square-planar. The toluene solvent mol-ecule is disordered over two different orientations, with site-occupation factors of 0.810 (2) and 0.190 (2).

| S-EPMC3274931 | biostudies-literature

(Triphenyl-phosphine-κP)[1,1,1-tris-(diphenyl-phosphinometh-yl)ethane-κP,P',P'']copper(I) tetra-fluoridoborate.

Project description:In the title mononuclear Cu(I) complex, [Cu(C(18)H(15)P)(C(41)H(39)P(3))]BF(4), the cation has a basic rigid core structure reminiscent of the framework of diamond. The metal atom is coordinated by four P atoms in a distorted tetra-hedral geometry, the distortion arising from the steric hindrance of the phenyl groups. The anion is disordered over two positions, with an occupancy ratio of 0.524 (17):0.476 (17). The cations and anions are closely packed in the crystal and are in h.c.p. arrangements.

| S-EPMC2983927 | biostudies-literature

Chloridocyclo-hexyl[(1,2,5,6-η)-cyclo-octa-1,5-diene]platinum(II).

Project description:In the title complex, [Pt(C(6)H(11))Cl(C(8)H(12))], the Pt(II) ion lies in a distorted square-planar environment defined by the Cl and cyclo-hexyl C atoms and the mid-points of the two π-coordinated double bonds of cyclo-octa-1,5-diene. As a result of the different trans influences of the Cl atom and the cyclo-hexyl group, the Pt-C bonds trans to the cyclo-hexyl group are longer than those trans to the Cl atom.

| S-EPMC2971967 | 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

[μ-3,3'-Diisopropyl-1,1'-(propane-1,3-di-yl)bis-(1,3-diazinan-2-yl-idene)]bis-[bromido-(η(4)-cyclo-octa-1,5-diene)rhodium(I)].

Project description:The title compound, [Rh2Br2(C8H12)2(C17H32N4)], was obtained by the reaction of 3,3'-(propane-1,3-di-yl)bis-(1-isopropyl-3,4,5,6-tetra-hydro-pyrimidin-1-ium) bromide and [{Rh(cod)Cl}2] (cod is cyclo-octa-1,5-diene) in tetra-hydro-furan. The two Rh(I) atoms each have a distorted square-planar coordination environment, defined by a bidentate cod ligand, a bromide anion and one C atom of the bridging bidentate bis-N-heterocyclcic carbene (NHC) ligand. The average Rh-CNHC distance is 2.038 (7) Å, suggesting that the bond has a major σ contribution with very little back donation. The distances between the cod ligands and the Rh(I) atoms vary between 2.104 (4) and 2.210 (4) Å.

| S-EPMC3998270 | 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

(N-Benzoyl-N'-phenyl-thio-urea-?S)chlorido(?-1,5-cyclo-octa-diene)rhodium(I).

Project description:The title compound, [RhCl(C(8)H(12))(C(14)H(12)N(2)OS)], is a rhodium(I) derivative with a functionalized thio-urea ligand. Despite the presence of several heteroatoms, the thio-urea ligand coordinates only in a monodentate fashion via the S atom. The geometry of the coordination sphere is approximately square planar about the Rh(I) atom, with two bonds to the ?-electrons of the 1,5-cyclo-octa-diene ligand, one bond to the Cl(-) ligand and one bond to the S atom of the thio-urea ligand. The mol-ecular structure is stabilized by intra-molecular N-H?O and N-H?Cl hydrogen bonding. Inter-molecular N-H?O hydrogen-bonding inter-actions lead to the formation of layers extending parallel to (011).

| S-EPMC3007502 | biostudies-literature

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