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Di-?-chlorido-bis-[chlorido(dimethoxy-phenyl-phosphine)palladium(II)].

ABSTRACT: The title compound, [Pd(2)Cl(4)(C(8)H(11)O(2)P)(2)], is binuclear and disposed about a crystallographic centre of symmetry with a Pd?Pd distance of 3.4662?(17)?Å. It has a similar geometry to that observed in the triphenyl-phosphite and triphenyl-phosphine analogues. The Pd-P bond length is ca 0.04?Å shorter than those in mononuclear PdCl(2)(P(OMe)(2)Ph)(2), possibly due to the lower trans-influence of the bridging Cl(-) compared to a single-bonded Cl(-) atom.

SUBMITTER: Slawin AM

PROVIDER: S-EPMC2979266 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature

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Di-μ-chlorido-bis-[chlorido(dimethoxy-phenyl-phosphine)palladium(II)].

Slawin Alexandra M Z AM Waddell Paul G PG Woollins J Derek JD

Acta crystallographica. Section E, Structure reports online 20100410 Pt 5

The title compound, [Pd(2)Cl(4)(C(8)H(11)O(2)P)(2)], is binuclear and disposed about a crystallographic centre of symmetry with a Pd⋯Pd distance of 3.4662 (17) Å. It has a similar geometry to that observed in the triphenyl-phosphite and triphenyl-phosphine analogues. The Pd-P bond length is ca 0.04 Å shorter than those in mononuclear PdCl(2)(P(OMe)(2)Ph)(2), possibly due to the lower trans-influence of the bridging Cl(-) compared to a single-bonded Cl(-) atom. ...[more]

PMID: 21579000

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Crystal structure of [N,N'-bis-(4-methyl-phen-yl)-1,2-di-phenyl-ethane-1,2-di-imine-κ(2) N,N']di-chlorido-palladium(II) methanol monosolvate.

Project description:The title compound, [PdCl2(C28H24N2)]·CH3OH, was pre-pared from the reaction of PdCl2(DMSO)2 (DMSO is di-methyl sulfoxide) and N,N'-bis-(4-methyl-phen-yl)-1,2-di-phenyl-ethane-1,2-di-imine in methanol. The chelating di-imine core of the title compound deviates slightly from planarity, with an N-C-C-N torsion angle of 5.3 (3)°. Delocalization in the di-imine core is indicated by N-C and C-C bonds that are, respectively, longer and shorter than those found in related nonchelating di-imines. The distorted square-planar coordination environment around the Pd(II) atom is manifested as bond angles that are smaller and larger than 90°, and palladacycle torsion angles of -173.22 (16) and 167.06 (16)°. These deviations are attributed to the small bite angle of 79.13 (8)° of the di-imine chelate. The crystal packing exhibits weak inter-molecular hydrogen-bonding inter-actions involving aromatic H atoms, Cl atoms and inter-calated methanol solvent mol-ecules, defining layers parallel to (010).

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[1,4-Bis(di-phenyl-phosphan-yl)butane-κ(2) P,P']di-bromido-palladium(II).

Project description:In the title complex, [PdBr2(C28H28P2)], the Pd(II) ion has a distorted cis-Br2P2 square-planar coordination geometry defined by two P atoms from the chelating 1,4-bis-(di-phenyl-phosphan-yl)butane ligand and two Br(-) anions. The four phenyl rings are inclined to the least-squares plane of the PdBr2P2 unit [maximum deviation = 0.1294 (7) Å], making dihedral angles of 66.3 (2), 87.2 (2), 68.8 (2) and 86.8 (2)°. The butyl-ene chain is in a gauche conformation, with a C-C-C-C torsion angle of 57.0 (8)°. Inter-molecular C-H⋯Br hydrogen bonds link the complex mol-ecules into supra-molecular layers in the ab plane. Weak π-π inter-actions, both intra- and inter-molecular [shortest inter-centroid distance = 4.598 (5) Å], are also noted in the three-dimensional architecture.

| S-EPMC3998252 | biostudies-literature

Crystal structure of bis-{?-2-[(di-methyl-amino)-meth-yl]ferrocene-seleno-lato}bis[chlorido-palladium(II)].

Project description:The dinuclear title compound, [PdCl{Se[(C5H5)Fe(C5H3)2CH2N(CH3)2]}]2 was obtained by the reaction of [PdCl2(NCPh)2] with 2-[(N,N'-di-methyl-amino)-meth-yl]ferro-cene-seleno-late and the crystals for the structure determination were grown from a mixture of THF and n-hexane. Both Pd(II) atoms are coordinated by the bridging Se atoms and by the amino N atoms of the bidentate 2-[(N,N'-di-methyl-amino)-meth-yl]ferrocene-seleno-late ligand, as well as by Cl atoms, and show a distorted square-planar coordination. The angle between the Pd-Se-Se planes of the two Pd atoms is 149.31?(3)°. Weak Cl?H hydrogen bonds link the binuclear complexes into a three-dimensional network.

| S-EPMC4257227 | biostudies-literature

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