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Bis[?-1,2-bis-(diphenyl-phosphino)methane-?P:P']bis-[(?-ethene)nickel(0)] toluene disolvate.

ABSTRACT: In the title compound, [Ni(2)(C(2)H(4))(2)(C(25)H(22)P(2))(2)]·2C(7)H(8), each Ni atom is coordinated in a trigonal-planar geometry by two P atoms of the bridging 1,2-bis-(diphenyl-phosphino)methane (dppm) ligands and by the centroid of the double bond of an ethene ligand. An eight-membered ring comprising the two Ni atoms, four P atoms and the CH(2) groups of the two dppm ligands is thus formed. The methyl group in one of the solvent toluene mol-ecules is disordered over two positions with equal occupancies.

SUBMITTER: Langer J

PROVIDER: S-EPMC2960292 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature

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Bis[μ-1,2-bis-(diphenyl-phosphino)methane-κP:P']bis-[(η-ethene)nickel(0)] toluene disolvate.

Langer Jens J Fischer Reinhald R Görls Helmar H Walther Dirk D

Acta crystallographica. Section E, Structure reports online 20080125 Pt 2

In the title compound, [Ni(2)(C(2)H(4))(2)(C(25)H(22)P(2))(2)]·2C(7)H(8), each Ni atom is coordinated in a trigonal-planar geometry by two P atoms of the bridging 1,2-bis-(diphenyl-phosphino)methane (dppm) ligands and by the centroid of the double bond of an ethene ligand. An eight-membered ring comprising the two Ni atoms, four P atoms and the CH(2) groups of the two dppm ligands is thus formed. The methyl group in one of the solvent toluene mol-ecules is disordered over two positions with equa ...[more]

PMID: 21201358

Similar Datasets

[Bis(diphenyl-phosphino)methane-κP,P'][bis-(diphenyl-phosphinometh-yl)diethoxy-silane-κP,P']bis-(dinitro-gen)-molybdenum(0) benzene 0.7-solvate.

Project description:In the crystal structure of the title compound, [Mo(C(25)H(22)P(2))(C(30)H(34)O(2)P(2)Si)(N(2))(2)]·0.7C(6)H(6), the Mo atoms are coordinated by four P atoms and two N atoms in a distorted octa-hedral mode. The two C atoms of one of the two eth-oxy groups are disordered and were refined using a split model and site-occupation factors of 0.7:0.3. The crystal structure contains a benzene solvent mol-ecule with a site occupation of 70%.

| S-EPMC2959717 | biostudies-literature

Bis[cis-bis-(diphenyl-phosphino)ethene-κP,P']copper(I) tetra-fluoridoborate ethanol solvate.

Project description:In the title compound [Cu(C(26)H(22)P(2))(2)]BF(4)·C(2)H(5)OH, a disordered ethanol solvate molecule and the anions are located in well defined channels along the c axis. The four-coordinate Cu(P-P)(2) core of the cation adopts approximately D(2) point group symmetry with the Cu-P bond lengths spanning a narrow range from 2.272 (1) to 2.285 (1) Å.

| S-EPMC2977563 | biostudies-literature

Bis[μ-bis-(diphenyl-phosphino)methane-κP:P']bis-[(chloro-difluoro-acetato-κO)silver(I)](Ag-Ag).

Project description:The asymmetric unit of the title compound, [Ag(2)(C(2)ClF(2)O(2))(2)(C(25)H(22)P(2))(2)], consists of two half-mol-ecules, each Ag(I) ion lying on a center of symmetry. In each complete mol-ecule, two bis-(diphenyl-phosphino)methane ligands bridge two Ag(I) ions, which are further coordinated by one chloro-difluoro-acetate ligand, giving T-shaped geometries and short intra-molecular Ag⋯Ag distances of 3.1078 (6) and 2.9950 (6) Å. In one mol-ecule, the unique -CF(2)Cl group is rotationally disordered over two sites with approximate occupancies of 0.53 and 0.47 for the major and minor components, respectively.

| S-EPMC2961164 | biostudies-literature

Bis[cis-bis-(diphenyl-phosphino)ethene]copper(I) dichloridocuprate(I).

Project description:The crystal structure of the title compound, [Cu(C(26)H(22)P(2))(2)][CuCl(2)], is composed of discrete Cu(dppey)(2)](+) cations [dppey is cis-bis-(diphenyl-phosphino)ethene] and [CuCl(2)](-) anions. The tetra-hedral Cu(P-P)(2) core of the [Cu(dppey)(2)](+) cation is distorted, with Cu-P bond lengths ranging from 2.269?(1) to 2.366?(1)?Å. The five-membered -Cu-P-CH=CH-P- rings adopt envelope conformations, with the Cu atom lying 0.38 and 0.65?Å out of the P-C=C-P planes. The Cu-Cl distances in the [CuCl(2)](-) anion are 2.094?(2) and 2.096?(2)?Å, with a Cl-Cu-Cl angle of 176.81?(7)°.

| S-EPMC2979187 | biostudies-literature

[μ-1,3-Bis(diphenyl-phosphino)propane-κP:P']bis-[bromidogold(I)].

Project description:The title compound, [Au(2)Br(2)(C(27)H(26)P(2))], features linearly coordinated Au(I) atoms within P,Br-donor sets. The central portion of the mol-ecule is practically planar as quanti-fied by the Br-Au⋯Au-Br torsion angle of -169.9 (2)°. The P-Au-Br chromophores are twisted with respect to each other [dihedral angle = 52.3 (6)°]. The benzene rings on each P atom lie on either side of this plane. The Au atoms are positioned at the periphery of the mol-ecule, which facilitates the formation of Au⋯Au inter-actions [3.2575 (11) Å] that result in the formation of supra-molecular chains along the b-axis direction. The Au⋯Au inter-actions are responsible for the deviations from the ideal linear geometry for each Au atom.

| S-EPMC2979952 | biostudies-literature

[?-1,2-Bis(diphenyl-phosphino)ethane-?P:P']bis-{[1,2-bis-(diphenyl-phosphino)ethane-?P,P']cyanidocopper(I)} methanol disolvate.

Project description:The title centrosymmetric complex, [Cu(2)(CN)(2)(C(26)H(24)P(2))(3)]·2CH(3)OH, consists of two five-membered [Cu(dppe)CN] rings [dppe is 1,2-bis-(diphenyl-phosphino)ethane] bridged by one ?(2)-dppe ligand, and two methanol solvent mol-ecules. The angles around the central metal atom indicate that each Cu(I) atom is located in the center of a distorted tetra-hedron. The coordination sphere of each Cu(I) atom is formed by three P atoms from two dppe ligands, and one C atom from the cyanide ligand. The crystal structure is stabilized by O-H?N hydrogen bonds, which are formed by the O-H donor group from methanol and the N-atom acceptor from a cyanide ligand.

| S-EPMC3007356 | biostudies-literature

Bis[?-bis-(diphenyl-phosphino)methane-?P:P']bis-[(4-toluene-sulfonato-?O)silver(I)] monohydrate.

Project description:The title complex, [Ag(2)(C(7)H(7)O(3)S)(2)(C(25)H(22)P(2))(2)]·H(2)O, was obtained by the reaction of silver toluene-sulfonate with diphenyl-phosphinomethane (dppm) in acetonitrile. There are two unique half-mol-ecules of the complex in the asymmetric unit, together with one water mol-ecule, which is disordered over two positions with site occupancy factors of 0.6 and 0.4. In each centrosymmetric neutral dimeric mol-ecule, two Ag atoms are bridged by a pair of dppm ligands to give an eight-membered Ag(2)P(4)C(2) ring with a distorted AgOP(2) trigonal-planar environment. The Ag-Ag distances of 2.9215?(9) and 3.027?(1)?Å indicate a direct bonding inter-action.

| S-EPMC2960244 | biostudies-other

[Bis-(diphenyl-phosphino)methane-?P,P']dichloridopalladium(II).

Project description:The title complex, [PdCl(2)(C(25)H(22)P(2))], is a slightly distorted square-planar bis-(diphenyl-phosphino)methane cis-complex of PdCl(2). The structure of a polymorph of the title compound has been described earlier, but the arrangement of the mol-ecules observed in the current structure is distinctively different from that previously reported [Steffen & Palenik (1976 ?). Inorg. Chem.15, 2432-2439]. The earlier report describes a structure with individual well separated mol-ecules crystallizing in space group P2(1)/n. The polymorph described here, which is isostructrural to its Pt analogue [Babai et al. (2006 ?). Z. Anorg. Allg. Chem.632, 639-644], crystallizes in C2/c with chains of C2-symmetric mol-ecules stretching parallel to the b axis. The Pd atoms and the bis-phosphino-methane units are located on two different positions created by a non-crystallographic mirror operation with an occupancy of 0.6677?(11) for the major (PCH(2)P)Pd moiety. The positions of the Cl atoms of the minor moiety do coincide perfectly with those of the next mol-ecule along the chain parallel to b, and they are thus not included in the disorder. The phenyl rings also do not take part in the disorder and are common to both the major and minor moieties of the (PCH(2)P)PdCl(2) units. Assuming no defects, mol-ecules in each chain will thus have to be oriented the same way and the effect of the disorder of the (PCH(2)P)Pd unit is thus a reversal in direction of the chains parallel to b. The presence of light streaks of intensity between actual Bragg peaks indicates that a somehow ordered arrangement not resolved in the Bragg diffraction data may be present (i.e. an incommensurate superstructure) rather than a random or domain arrangement of the chains.

| S-EPMC2968394 | biostudies-literature

[1,2-Bis(diphenyl-phosphino)-1,2-dicarba-closo-dodeca-borane-κP,P'][7,8-bis-(di-phenyl-phosphino)-7,8-dicarba-nido-undeca-borato-κP,P']gold(I)-dichloro-methane-water (2/1/1).

Project description:The title compound, [Au(C(26)H(30)B(10)P(2))(C(26)H(30)B(9)P(2))]·0.5CH(2)Cl(2)·0.5H(2)O, contains two independent complex mol-ecules in the asymmetric unit. The gold(I) centres display a distorted tetra-hedral geometry. The complex is stablized through weak intra-molecular π-π stacking (Cg⋯Cg = 4.17 Å) and edge-to-face inter-actions (H⋯Cg = 3.21 Å). Adjacent mol-ecules inter-act through C-H⋯π (H⋯Cg = 2.88 Å) and B-H⋯π (H⋯Cg = 3.15 Å) contacts, forming a three-dimensional network, with solvent mol-ecules occupying the cavities. One of the phenyl groups was disordered over two sites with occupancy factors of 0.65 and 0.35.

| S-EPMC2977637 | biostudies-literature

[Bis[μ-bis-(diphenyl-phosphino)methane-1:2κ(2)P:P']-bis-(nitrito-κ(2)O,O')]disilver(I) acetonitrile disolvate.

Project description:The title complex, [Ag(2)(NO(2))(2)(C(25)H(22)P(2))(2)]·2CH(3)CN, is a centrosymmetric dimer in which two bis(diphenylphosphino)methane ligands bridge two Ag(+) ions, forming an eight-membered ring with a short Ag⋯Ag separation of 3.1809 (5) Å. The distorted P(2)O(2) coordination of the cation is completed by two O-donors from a symmetric bidentate chelate NO(2) (-) anion [Ag-O = 2.550 (3) and 2.567 (3) Å].

| S-EPMC3515120 | biostudies-literature

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