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Trans-Dibromidobis[tris-(4-chloro-phen-yl)phosphine]palladium(II).

ABSTRACT: In the title compound, [PdBr(2)(C(18)H(12)Cl(3)P)(2)], the Pd(II) ion is situated on a centre of symmetry and is coordinated by two Br anions [Pd-Br = 2.4252 (2) Å] and two P-donor ligands [Pd-P = 2.3317 (6) Å] in a slightly distorted square-planar geometry [P-Pd-Br = 86.589 (15)°].

SUBMITTER: Kirsten L

PROVIDER: S-EPMC2971912 | biostudies-literature |

REPOSITORIES: biostudies-literature

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trans-Dichloridobis[tris-(2-methoxy-phen-yl)phosphine]palladium(II).

Project description:The structure of the title compound, [PdCl(2)(C(21)H(21)O(3)P)(2)], shows a nearly square-planar geometry for the Pd(II) atom within the Cl(2)Pd[P(PhOMe)(3)](2) ligand set. The Pd(II) atom sits on a centre of inversion and therefore the asymmetric unit contains one half-mol-ecule, i.e. half of one Pd(II) atom, one Cl atom and one tris-(2-methoxy-phen-yl)phosphine ligand.

| S-EPMC2971166 | biostudies-literature

trans-Dibromidobis[diphen-yl(p-tol-yl)phosphine]palladium(II).

Project description:In the title compound, [PdBr(2)(C(19)H(17)P)(2)], the Pd(II) ion resides on a centre of symmetry and is coordinated by two Br anions [Pd-Br = 2.4266 (2) Å] and two P-donor ligands [Pd-P = 2.3462 (5) Å] in a slightly distorted square-planar geometry [P-Pd-Br = 93.528 (12)°]. Weak inter-molecular C-H⋯Br hydrogen bonds link mol-ecules into chains extended in [10].

| S-EPMC2971950 | biostudies-literature

trans-Dibromidobis(triphenyl-phosphine-?P)palladium(II) chloro-form monosolvate.

Project description:The Pd(II) atom in the title compound, [PdBr(2){P(C(6)H(5))(3)}(2)]·CHCl(3), lies on a twofold rotation axis and is coordinated in a distorted square-planar geometry by two P atoms from two triphenyl-phosphine ligands and by two Br atoms in a trans arrangement. The chloro-form solvent mol-ecule is equally disordered about another twofold rotation axis.

| S-EPMC2977421 | biostudies-literature

trans-Dichloridobis[tris-(4-methoxy-phen-yl)phosphine]palladium(II) benzene monosolvate.

Project description:The structure of the title compound, [PdCl(2)(C(21)H(21)O(3)P)(2)]·C(6)H(6), shows a square-planar geometry for the Pd(II) atom within a Cl(2)[P(PhOMe)(3)](2) ligand set. The crystal structure contains benzene as solvent. The Pd(II) atom sits on a centre of inversion and therefore the asymmetric unit contains the Pd(II) atom, one Cl atom, one tris-(4-methoxy-phen-yl)phosphine ligand and one half of the benzene solvent mol-ecule.

| S-EPMC2971806 | biostudies-other

trans-Dibromidobis(1-ethyl-3-methyl-imidazol-2-yl-idene)palladium(II).

Project description:The title compound, trans-[PdBr(2)(C(6)H(10)N(2))(2)], was synthesized ionothermally in the ionic liquid solvent 1-ethyl-3-methyl-imidazolium bromide. In the crystal, the Pd(II) atoms are square-planarly coordinated to two Br atoms and two neutral (C(6)H(10)N(2)) ligands. The Pd(II) atom is located on an inversion centre.

| S-EPMC3200790 | biostudies-literature

Tris(2-methoxy-phen-yl)phosphine.

Project description:In the title compound, C(21)H(21)O(3)P, the whole mol-ecule is disordered over two sets of positions with refined occupancies of 0.503?(1) and 0.497?(1). The dihedral angles between the three benzene rings are 72.9?(2)°, 82.9?(3)° and 70.0?(2)° in the major disorder component and the corresponding angles in the minor disorder component are 85.0?(2)°, 79.2?(2)° and 72.3?(2)°. The crystal structure is stabilized by C-H?? inter-actions.

| S-EPMC2969262 | biostudies-literature

Dibromidobis[1-(2,4,6-trimethyl-phen-yl)-1,4,5,6-tetra-hydro-pyrimidine-?N]palladium(II).

Project description:In the title complex, [PdBr(2)(C(13)H(18)N(2))(2)], the Pd(II) atom is situated on an inversion center. The tetra-hydro-pyrimidine group of the N-(2,4,6-trimethyl-phen-yl)-1,4,5,6-tetra-hydro-pyrimidine ligand is twisted from the square (PdN(2)Br(2)) coordination plane with a C-N-Pd-Br torsion angle of 81.8?(4)°; this is different from the angle of 43.47?(14)°, reported in a closely related structure, dichloridobis(1-methyl-1,4,5,6-tetra-hydro-pyrimidine)-palladium(II).

| S-EPMC3050419 | biostudies-literature

trans-Dibromidobis(tri-p-tolyl-arsine)palladium(II).

Project description:In the title compound, [PdBr(2)(C(21)H(21)As)(2)], the Pd(II) ion, residing on a centre of symmetry, is coordinated by two As donor atoms [Pd-As = 2.4276?(2)?Å] and two Br anions [Pd-Br = 2.4194?(2)?Å] in a distorted square-planar geometry [Br-Pd-As = 87.786?(7)°]. A weak intra-molecular C-H?Br inter-action occurs. In the crystal structure, inter-molecular C-H?Br inter-actions are observed.

| S-EPMC2971051 | biostudies-literature

Dichlorido(η-toluene)[tris-(4-methoxy-phen-yl)phosphine]ruthenium(II).

Project description:In the title compound, [RuCl(2)(C(7)H(8))(C(21)H(21)O(3)P)], the Ru(II) atom possesses a pseudo-octa-hedral geometry and the metrical parameters around the metallic core compare well with those of similar three-legged-piano-stool complexes.

| S-EPMC2960359 | biostudies-literature

trans-Chlorido[6-chloro-4-(4-methoxy-benz-yl)-3-oxo-3,4-dihydro-pyrazin-2-yl]-bis-(triphenyl-phosphine)palladium(II).

Project description:The title compound, [Pd(C(12)H(10)ClN(2)O(2))Cl(C(18)H(15)P)(2)], is the inter-mediate of the reduction of a 3,5-dichloro-pyrazinone [Loosen, Tutonda, Khorasani, Compernolle & Hoornaert (1991 ?). Tetra-hedron, 47, 9259-9268]. This species is formed by oxidative addition of coordinatively unsaturated Pd(0) to the reactive 3-position of the heterocycle. The coordination around the Pd atom is square planar, with two trans PPh(3) ligands. ?-? inter-actions are observed between the centroid of the pyrazinone ring and planes of two adjacent phenyl rings, one from each PPh(3) group (3.25 and 3.078?Å), stabilizing the inter-mediate structure. This could explain the reduced reactivity towards substitution of the Cl atom by the formate anion, resulting in poor yield of the reduced compound. 3-Substituted pyrazinones are important precursors in the synthesis of 5-amino-piperidinone-2-carboxyl-ate (APC) systems.

| S-EPMC2914967 | biostudies-literature

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