ABSTRACT: In the title ionic compound, [Pt(C(17)H(23))(C(34)H(33)P(3))](BF(4))·2CH(2)Cl(2), the Pt(II) atom adopts a square-planar coordination geometry with the large (Z)-8-mesityl-cyclo-oct-4-en-1-yl group occupying the fourth coordination site. The (triphos)Pt moiety and the mesityl group are attached to the cyclo-oct-4-ene motif at the 1- and 8-position in a syn configuration. The (BF(4))(-) anion and one of the dichloromethane solvate molecules each are disordered over two sets of sites.
Project description:In the title compound, [CoRu(C(17)H(14)P)(2)ClH(C(18)H(15)P)(CO)]PF(6)·2CH(2)Cl(2), the Ru(II) atom is coordinated by three P atoms from a chelating 1,1'-bis-(diphenyl-phosphan-yl)cobaltocenium ligand and a triphenyl-phosphine ligand, one CO ligand, one Cl atom and one H atom in a distorted octa-hedral geometry. In the cobaltocenium unit, the two cyclo-penta-dienyl rings are almost parallel, making a dihedral angle of 1.2?(3)°. The F atoms of the hexa-fluoridophosphate anion are disordered over two sets of sites, with an occupancy ratio of 0.849?(11):0.151?(11). Intra-molecular C-H?Cl hydrogen bonds occur in the complex cation. The complex cations, hexa-fluoridophosphate anions and dichloro-methane solvent mol-ecules are linked by inter-molecular C-H?F hydrogen bonds.
Project description:The title compound, [Ir2H2O(C3H9P)6](BF4)2·2H2O, was isolated from the reaction between [Ir(COD)(PMe3)3]BF4 and H2 in water (COD is cyclo-octa-1,5-diene). The asymmetric unit consists of one Ir(III) atom bonded to three PMe3 groups, one hydride ligand and half an oxide ligand, in addition to a BF4 (-) counter-ion and one water molecule of hydration. The single oxide ligand bridging two Ir(III) atoms is disordered across an inversion center with each O atom having a 50% site occupancy. Each Ir(III) atom has three PMe3 groups occupying facial positions, with the half-occupancy O atoms, a hydride ligand and an Ir-Ir bond completing the coordination sphere. The Ir-Ir distance is 2.8614 (12) Å, comparable to other iridium(III) metal-metal bonds. Two water mol-ecules hydrogen bond to two BF4 (-) anions in the unit cell.
Project description:In the title compound, [Pt(C(30)H(31)NP(2))(2)](PF(6))(2)·2CH(2)Cl(2), the four-coordinated Pt(II) atom, situated on an inversion centre, exhibits a highly distorted square-planar geometry illustrated by the P-Pt-P bite angle of 70.76?(3)°. The cyclo-hexyl ring and one of the phenyl rings display 0.630?(7):0.37?(7) and 0.60?(2):0.40?(2) positional disorder, respectively. The dichloro-methane solvent mol-ecule displays 0.526?(4):0.474?(4) positional disorder. C-H?F hydrogen bonds stabilize the crystal packing.
Project description:In the title complex, [CdFe(C(17)H(14)P)(2)Cl(2)]·2CH(2)Cl(2), the Cd(II) atom has a distorted tetra-hedral coordination geometry by two chloride anions and two P atoms of 1,1'-bis-(diphenyl-phosphan-yl)ferrocene. In the crystal, complex mol-ecules are linked into a three-dimensional network by C-H?Cl hydrogen bonds involving the dichloro-methane solvent mol-ecules.
Project description:In the title compound, [Fe(CH(3)CN)(3)(C(29)H(27)N(5)OP(2))](BF(4))(2)·2CH(3)CN, the Fe(II) ion is octa-hedrally coordinated by a meridionally chelating tridentate pincer-type PNP ligand derived from 2,6-diamino-4-eth-oxy-1,3,5-triazine and by three acetonitrile mol-ecules. The four Fe-N bond lengths range from 1.9142?(12) to 1.9579?(11)?Å, while the Fe-P bonds are 2.2452?(4) and 2.2506?(4)?Å [P-Fe-P = 165.523?(14)°], consistent with Fe(II) in a low-spin state. Unlike related Fe PNP complexes based on 2,6-diamino-pyridine, the BF(4) anions are not hydrogen bonded to the two NH groups of the pincer ligand but show instead anion-? inter-actions with the triazine ring and acetonitrile mol-ecules in addition to ten C-H?F inter-actions. Most remarkable among these is an anion-?(triazine) inter-action with a short distance of 2.788?(2)?Å between one F and the centroid of the ?-acidic triazine ring. The corresponding shortest distance between this F atom and a triazine carbon atom is 2.750?(2)?Å. The two NH groups of the pincer ligand donate N-H?N hydrogen bonds to the triazine N atom of a neighbouring complex and to an uncoordinated acetonitrile mol-ecule. This last mol-ecule is in a side-on head-to-tail association with the second uncoordinated acetonitrile at C?N distances of 3.467?(2) and 3.569?(2)?Å. In contrast to several related compounds with diamino-pyridine- instead of diamino-triazine-based PNP ligands, the title crystal structure is remarkably well ordered. This suggests that the diamino-triazine moiety exerts notable crystal structure stabilizing effects.
Project description:In the crystal structure of the title compound, [Cu(C(18)H(16)N(6))(C(36)H(28)OP(2))]PF(6)·0.5CH(2)Cl(2) or [Cu(DPEPhos)(Bn-bta)]PF(6)·0.5CH(2)Cl(2) {DPEPhos = bis-[(diphenyl-phosphan-yl)phen-yl] ether and Bn-bta = 1,1'-dibenzyl-1H,1'H-4,4'-bi-1,2,3triazol-e}, the Cu atom is coordinated by two N and two P atoms of the ligands in a strongly distorted tetra-hedral environment. There are two crystallographically independent complex cations present, which differ significantly in their geometrical parameters. The solvent molecule is disordered but satisfactory atomic positions could not be determined.
Project description:The title phosphane, C(32)H(38)P(4) or (Ph(2)P)(2)P(P(t)Bu(2)), has a P atom that is linked to another three P atoms in a pyramidal configuration; the P-P distances in the range 2.2231?(7)-2.2446?(7)?Å indicate that the P-P bonds are single bonds.
Project description:In the title complex, [Cu(C(20)H(13)BrN(4))(C(18)H(15)P)(2)]BF(4)·0.5CH(2)Cl(2), the copper(I) cation adopts a distorted tetra-hedral arrangement, coordinated by two triphenyl-phosphine ligands and two N atoms of the potentially tridentate terpyridine ligand. One half-mol-ecule of dichloro-methane crystallizes with the complex. The chlorine atoms are disordered over two sites with occupancies fixed at 0.30 and 0.20 respectively. The N donor atom of the central pyridine inter-acts weakly with the copper centre at a distance of 3.071 Å.
Project description:In the title solvated complex, [NiCl(2)(C(31)H(27)NP(2))]·CH(2)Cl(2), the Ni(2+) ion is coordinated by two chloride ions and two P atoms of the chelating N,N-bis-(diphenyl-phosphan-yl)benzyl ligand to generate a strongly distorted cis-NiCl(2)P(2) square-planar geometry for the metal ion. In the crystal, the components are linked by C-H⋯Cl inter-actions.
Project description:The title compound, C(27)H(39)N(2) (+)·C(24)H(20)B(-)·2CH(2)Cl(2), is the first reported imidazolidinium cation with the sterically demanding 2,6-diisopropyl-phenyl groups in the 1,3-positions. The crystal structure is stabilized by weak inter-molecular C-H??(arene) inter-actions. Due to the bulky nature of both the flanking 2,6-diisopropyl-phenyl substituents and the tetra-phenyl-borate counter-ion, anion inter-actions with the imidazolidinium H atom in the 2-position are not observed, also a first for this class of ortho-alkyl-substituted Arduengo-type carbene precursors.