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Bis(N,N'-diphenyl-benzamidinium) fumarate.

ABSTRACT: The crystal structure of the title compound, 2C(19)H(17)N(2) (+)·C(4)H(2)O(4) (2-), consists of centrosymmetric trimers built up of two crystallographically independent N,N'-diphenyl-benzamid-in-ium cations and one fumarate dianion, which is located on a centre of inversion. The components of the trimers are linked by N-H⋯O hydrogen bonding. In the cation, the outer rings make dihedral angles of 53.66 (5) and 78.38 (5)° with the central ring. The two outer rings make a dihdral angle of 81.49 (5)°.

SUBMITTER: Orola L

PROVIDER: S-EPMC3006964 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Bis(?-disulfur dinitrido)bis-[diphenyl-tin(IV)].

Project description:The title compound, [Sn(2)(C(6)H(5))(4)(N(2)S(2))(2)], exists as a centrosymmetric binuclear dimer with the Sn(IV) centres in distorted trigonal bipyramidal geometry and a central Sn(2)N(2) core.

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

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Project description:In the title compound, 2C(4)H(7)N(2) (+)·C(4)H(2)O(4) (2-)·2H(2)O, the asymmetric unit consists of one 2-methyl-imidazolium cation, half a fumarate dianion and one water mol-ecule. There is an inversion center at the mid-point of the central C-C bond of the fumarate anion. In the crystal structure, mol-ecules are linked into a three-dimensional network by inter-molecular N-H?O, O-H?O and weak C-H?O hydrogen bonds. In addition, there are weak ?-? stacking inter-actions with centroid-centroid distances of 3.640?(1)?Å.

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?-1,2-Bis-(diphenyl-phos-phino)-ethane-?P:P'-bis-{[1,2-bis-(diphenyl-phosphino)-ethane-?P,P']bromidocopper(I)} acetone disolvate.

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Project description:The title structure, [Au(2)Cl(2)(C(25)H(22)As(2))], consists of discrete mol-ecules disposed about a crystallographic twofold axis. The Au atom exhibits a nearly linear coordination by As and Cl atoms. Au?Au inter-actions [3.4285Å(4)?Å] and a weak intermolecular C-H?Cl hydrogen bond are present.

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Project description:The title diphenyl-arsino compound, C(30)H(32)As(2) or Ph(2)As(CH(2))(6)AsPh(2), lies about a crystallographic inversion centre located at the mid-point of the central Csp(3)-Csp(3) bond of the methyl-ene chain. The two benzene rings bonded to As are inclined to one another at a dihedral angle of 75.98?(8)°. In the crystal structure, weak inter-molecular C-H?? inter-actions stack the mol-ecules down the b axis.

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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)°.

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[?-Bis(diphenyl-phosphan-yl)acetonitrile-?P:P]bis-[chloridogold(I)].

Project description:The title complex, [Au(2)Cl(2)(C(26)H(21)NP(2))], has an intra-molecular Au?Au inter-action of 3.1669?(4)?Å, but no inter-molecular Au?Au inter-actions in the solid state. The Cl-Au-P bond angle of 176.84?(7)° is slightly distorted from linearity. The P-C bond length to the phenyl group is shorter [1.810?(7)?Å] than the P-C bond length [1.876?(7)?Å] to the bridging carbon, indicative of the flexibility of the bidentate bite of the ligand. The C-C N fragment is essentially linear at 179.5?(9)° and the C N bond length of 1.125?(11)?Å indicates predominantly triple-bond character. In the crystal packing, there are no hydrogen-bonding or aurophilic inter-actions between the mol-ecules.

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