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Trans-Tetra-carbonyl-bis-[tris-(4-fluoro-phen-yl)phosphane-κP]chromium(0).

ABSTRACT: In the title compound, [Cr(C(18)H(12)F(3)P)(2)(CO)(4)], the Cr atom is octa-hedrally coordinated by four carbonyl ligands and the two tertiary phosphanes that are trans to each other. The Cr atom and two carbonyl groups are on a twofold axis. The benzene rings attached to the phospho-rus atom make dihedral angles of 80.32 (5), 52.91 (5) and 83.80 (5)° with each other. In the crystal, C-H⋯O and C-H⋯F inter-molecular inter-actions form an infinite three-dimensional network.

SUBMITTER: Norlidah MN

PROVIDER: S-EPMC3200925 | biostudies-literature |

REPOSITORIES: biostudies-literature

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trans-Tetra-carbonyl-bis-[tris-(3-fluoro-phen-yl)phosphane]chromium(0).

Project description:In the title compound, [Cr(C(18)H(12)F(3)P)(2)(CO)(4)], the Cr atom is octa-hedrally coordinated by four carbonyl ligands and the two tertiary phosphanes, which are trans to each other. The three benzene rings in one phosphane ligand make dihedral angles of 53.50?(9), 75.51?(10) and 80.63?(10)° with each other, while in the other ligand these angles are 51.92?(10), 78.56?(11) and 86.80?(10)°. C-H?O and C-H?F inter-actions link the mol-ecules into a three-dimensional network. Each of the F atoms is disordered over two positions with refined occupancies of 0.944?(3):0.056?(3), 0.702?(4):0.298?(4), 0.829?(4):0.171?(4), 0.567?(4):0.433?(4), 0.545?(4):0.455?(4) and 0.920?(4):0.080?(4).

| S-EPMC3238589 | biostudies-literature

trans-Tetra-carbonyl-bis-(tri-phenyl-phosphane-κP)molybdenum(0).

Project description:The well known title compound, trans-[Mo(C18H15P)2(CO)4], has not been studied previously by X-ray crystallography, unlike its cis isomer. The complex possesses crystallographically imposed inversion symmetry, with the Mo atom residing on an inversion centre (1a Wyckoff position). The two tri-phenyl-phosphane groups are arranged in a staggered orientation. Each of the phenyl groups exhibits significantly different Mo-P-C-C torsion angles ranging from 2.6 (2) to 179.4 (1)°, most likely due to steric inter-actions based upon their positions relative to the carbonyl ligands.

| S-EPMC3998249 | biostudies-literature

(Nitrato-κO)tris-[tris-(4-fluoro-phen-yl)phosphane-κP]copper(I).

Project description:In the title complex, [Cu(NO(3))(C(18)H(12)F(3)P)(3)], the ligating atoms define a distorted tetrahedon with the three tris-(4-fluoro-phen-yl)phosphane ligands in the basal positions and the nitrate ligand in the axial position. The intra-molecular π-π inter-action [centroid-centroid distance = 3.6113 (11) Å] between two of the 4-fluoro-phenyl groups is complemented by both C-H⋯F and C-H⋯O inter-actions with distances in the range 2.51-2.60 Å, resulting in a tight head-to-tail packing.

| S-EPMC3515141 | biostudies-literature

trans-Carbonyl-chloridobis[tris-(4-chloro-phen-yl)phosphane]rhodium(I) acetone monosolvate.

Project description:The title compound, trans-[RhCl(C(18)H(12)Cl(3)P)(2)(CO)]·C(3)H(6)O, contains an Rh(I) atom in a distorted square-planar coordination with a P-Rh-P angle of 175.27?(2)° and Rh-P bond lengths of 2.3127?(4) and 2.3219?(4)?Å. The rhodium complexes link each other through weak inter-molecular contacts between the acetone methyl groups and the carbonyl O atom. Inter-actions between the acetone solvent mol-ecule and the Cl-Rh unit results in a reduced P-Rh-Cl angle of 86.675?(15)°.

| S-EPMC3009219 | biostudies-literature

trans-Carbonyl-chloridobis[tris-(4-meth-oxy-phen-yl)phosphane-?P]rhodium(I).

Project description:The title complex, [RhCl(C(21)H(21)O(3)P)(2)(CO)], is a rhodium analogue to Vaska's complex with para-meth-oxy substituents on the six phosphan-yl-aryl units. Two independent mol-ecules are present in the unit cell, with their metal atoms both located on an inversion centre. This causes the chloride and carbonyl ligands to exhibit a positional disorder in a 0.5:0.5 ratio. The two Rh(I) atoms exhibit a distorted square-planar geometry. There are a few weak intra-molecular C-H?X inter-actions (X = O, Cl). Inter-estingly, no significant inter-molecular inter-actions are found between the two independent mol-ecules.

| S-EPMC3238621 | biostudies-literature

Tetra-phenyl-phospho-nium [μ3-(4-methyl-phen-yl)tellurolato]tris-[tetra-carbonyl-iron(0)].

Project description:In the anion of the title compound, (C24H20P)[Fe3(C7H7Te)(CO)12], each Fe(0) atom is coordinated by four CO ligands and a Te atom, resulting in a trigonal-bipyramidal coordination environment. The Te atom is coordinated by a 4-methyl-phenyl group and the Fe(0) atoms in a distorted tetra-hedral geometry. The average Te-Fe bond length is 2.574 (4) Å.

| S-EPMC3684888 | biostudies-literature

(η-s-cis-1,3-Butadiene)tetra-carbonyl-chromium(0).

Project description:In the title complex, [Cr(C(4)H(6))(CO)(4)], the Cr(0) atom shows a distorted octa-hedral environment from four C atoms of the carbonyl ligands and the two π-bonds of the s-cis-1,3-butadiene ligand. The complex has an approximate non-crystallographic mirror symmetry m passing through the chromium atom, two carbonyl ligands and the mid-point of the central C-C bond of the s-cis-1,3-butadiene ligand. The C-C bond lengths in the s-cis-1,3-butadiene ligand alternate, the terminal distances being shorter than the central distance.

| S-EPMC3052012 | biostudies-literature

cis-Dichloridobis[tris-(4-chloro-phen-yl)phosphane-κP]platinum(II) acetonitrile monosolvate.

Project description:The title compound, [PtCl(2)(C(18)H(12)Cl(3)P)(2)]·C(2)H(3)N, packs as monomeric units with a square-planar geometry around the Pt(II) atom. The two tris-(4-chloro-phen-yl)phosphane ligands are coordinated in a cis orientation, with P-Pt-P and Cl-Pt-Cl angles of 99.36 (2) and 88.02 (2)°, respectively. In the crystal, C-H⋯N inter-actions are observed between the phenyl rings and the acetonitrile solvent mol-ecules.

| S-EPMC3435633 | biostudies-literature

Crystal structure of trans-dihydrido-bis[tris-(di-methyl-amino)-phosphane-κP]platinum(II).

Project description:The mol-ecule of the title compound, [PtH2(C6H18N3P)2], has a centrosymmetric square-planar structure in which the Pt(II) atom is bonded to two H and two P atoms in a mutually trans configuration. The Pt(II) atom sits on an inversion center and thus the asymmetric unit contains only half the mol-ecule. The Pt-P and Pt-H distances are 2.2574 (10) and 1.49 (7) Å, respectively.

| S-EPMC4438795 | biostudies-literature

[1,3-Bis(diphenyl-phosphino)pentane-?P,P']tetra-carbonyl-chromium(0).

Project description:In the title compound, [Cr(C(29)H(30)P(2))(CO)(4)], the Cr atom is octa-hedrally coordinated by four carbonyl ligands and one bidentate phosphine ligand, which is bounded as a chelate in a cis position. The average Cr-P and Cr-C bond lengths are 2.377 and 1.865?Å, respectively.

| S-EPMC2968563 | biostudies-literature

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