39 research outputs found
Tetracarbonyl[bis(diphenylphosphanyl)tetramethyldisiloxane-κ2 P,P′]chromium(0)
The title compound, [Cr(C28H32OP2Si2)(CO)4], was obtained by the ligand-exchange reaction of Cr(CO)6 with (Ph2PSiMe2)2O in refluxing toluene. The CrC4P2 coordination geometry is distorted octahedral, with a P—Cr—P bite angle of 99.22 (4)°
Recursos, intereses y difusión de modelos para la política regional de I+D: la Comunidad de Madrid
Se agradece la financiación de la CICYT a través del Plan Nacional de I+D (SEC1999-0829-C02-01), así como las facilidades otorgadas por la Dirección general de Investigación de la Comunidad de Madrid, especialmente por Francisco Rubia y Alfonso González Hermoso
Diacetonitrile[N,N′-bis(2,6-diisopropylphenyl)ethane-1,2-diimine]dichloridochromium(II) acetonitrile solvate
The title compound, [CrCl2(CH3CN)2(C26H36N2)]·CH3CN, was synthesized by the reaction of CrCl2(THF)2 with N,N′-bis(2,6-diisopropylphenyl)ethane-1,2-diimine in dichloromethane/acetonitrile. The chromium center is coordinated by two N atoms of the chelating diimine ligand, two chloride ions in a trans configuration with respect to each other, and by two N atoms of two acetonitrile molecules in a distorted octahedral geometry
[2,2-Bis(diphenylphosphanyl)propane-κ2 P,P′]tetracarbonylchromium(0) dichloromethane monosolvate
The title compound, [Cr(C27H26P2)(CO)4]·CH2Cl2, was obtained by the reaction of Ph2PCMe2PPh2 with Cr(CO)6 in refluxing toluene by substitution of two carbonyl ligands. The CrC4P2 coordination geometry at the Cr atom is distorted octahedral, with a P—Cr—P bite angle of 70.27 (2)°
Bis[N,N′-bis(2,6-diisopropylphenyl)ethane-1,2-diimine]-1κ2 N,N′;2κ2 N,N′-tri-μ-trichlorido-1:2κ6 Cl:Cl-chlorido-1κCl-tetrahydrofuran-2κO-dichromium(II) dichloromethane 4.5-solvate
In the molecular structure of the title compound, [Cr2Cl4(C26H36N2)2(C4H8O)]·4.5CH2Cl2, the two CrII centers are bridged by three Cl atoms, forming a dinuclear complex. Each CrII center is coordinated by one chelating bis(2,6-diisopropylphenyl)ethane-1,2-diimine ligand via both N atoms. An additional chloride ion binds to one chromium center, whereas an additional tetrahydrofuran molecule coordinates to the second CrII center. The coordination geometry at each CrII center can be best described as distorted octahedral
[Bis(diphenylphosphanyl)dimethylsilane-κ2 P,P′]tetracarbonylchromium(0)
The title compound, [Cr(C26H26P2Si)(CO)4], was obtained by the reaction of Ph2PSiMe2PPh2 with Cr(CO)6 in refluxing toluene by ligand exchange. The CrC4P2 coordination geometry at the Cr atom is distorted octahedral, with a P—Cr—P bite angle of 80.27 (1)°
N,P,P-Triisopropylphosphinic amide
The title compound, C9H22NOP, was obtained by slow diffusion of oxygen into a toluene solution of iPr2PNHiPr. In the crystal, an intermolecular N—H⋯O hydrogen bond occurs
Tetracarbonyl[N-(diphenylphosphanyl-κP)-N,N′-diisopropyl-P-phenylphosphorus diamide-κP]molybdenum(0) with an unknown solvent
The title complex, [Mo(C24H30N2P2)(CO)4], contains a molybdenum centre bearing a P,P′-cis-chelating Ph2PN(iPr)P(Ph)NH(iPr) and four carbonyl ligands in a distorted octahedral coordination geometry. This results in a nearly planar four-membered metallacycle. In the crystal, molecules are linked by N—H...O and C—H...O hydrogen bonds to form layers parallel to the ac plane. For the final refinement, the contributions of disordered solvent molecules were removed from the diffraction data with SQUEEZE in PLATON [Spek (2015). Acta Cryst. C71, 9–18]. The given chemical formula and other crystal data do not take into account the unknown solvent molecule(s)
1-Diphenylphosphanyl-2-(diphenylphosphoryl)hydrazine
The title compound, C24H22N2OP2, is an asymmetrically substituted hydrazine derivative bearing a phosphoryl and a phosphanyl substituent. The PNNP backbone has a torsion angle of −131.01 (8)°. In the crystal, molecules form centrosymmetric dimers by intermolecular N—H...O hydrogen bonds, which are further linked into a three-dimensional network by weak C—H...O and C—H...π interactions
2,4-Bis(diphenylphosphanyl)-1,1,2,3,3,4-hexaphenyl-1,3-diphospha-2,4-diboracyclobutane tetrahydrofuran sesquisolvate
In the title compound, C60H50B2P4·1.5C4H8O, the diphosphadiborane molecule lies on an inversion centre, whereas the disordered tetrahydrofuran solvent molecule is in a general position with a partial occupancy of 0.75. The diphosphadiborane molecule consists of an ideal planar four-membered B2P2 ring with an additional phenyl and a –PPh2 group attached to each B atom