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Catena-Poly[[[(triphenyl-phosphane)copper(I)]-di-μ-iodido-[(triphenyl-phosphane)copper(I)]-μ-[3,6-bis-(4-pyrid-yl)-1,2,4,5-tetra-zine]] acetonitrile disolvate].

ABSTRACT: The title compound, {[Cu(2)I(2)(C(12)H(8)N(6))(C(18)H(15)P)(2)]·2CH(3)CN}(n), contains centrosymmetric dinuclear Cu(2)I(2)(PPh(3))(2) units bridged by 3,6-bis-(4-pyrid-yl)-1,2,4,5-tetra-zine ligands lying also across crystallographic inversion centers, giving a chain structure in the ab plane. The distorted tetra-hedral Cu(I) atoms in the dinuclear unit are coordinated by two bridging iodide anions, one pyridine N atom from the substituted tetra-zine ligand and one terminal triphenyl-phosphine P-atom donor. The Cu⋯Cu distance is 2.8293 (12) Å, implying a weak Cu⋯Cu inter-action.

SUBMITTER: Zhang J

PROVIDER: S-EPMC3008982 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Poly[(μ(2)-3,6-di-4-pyridyl-1,2,4,5-tetra-zine)(μ(2)-thio-cyanato)copper(I)].

Project description:The title compound, [Cu(NCS)(C(12)H(8)N(6))](n), is a self-assembled two-dimensional metal-organic network. The Cu atom is linked by two N atoms from two 3,6-di-4-pyridyl-1,2,4,5-tetra-zine ligands and by the N and S atoms from two thio-cyanate ligands in a distorted tetra-hedral environment. The Cu atom and the thio-cyanate ligand occupy a crystallographic mirror plane m, and a crystallographic inversion centre is in the middle of the tetra-zine ring, generating the zigzag fashion of the two-dimensional network. The infinite -Cu-SCN-Cu-SCN- chain is due to translational symmetry along the a axis. These chains are further connected through the 3,6-di-4-pyridyl-1,2,4,5-tetra-zine ligands that bridge the Cu(I) centers, generating a two-dimensional network. There are π-π stacking inter-actions between the pyridine and tetra-zine rings (perpendicular distances of 3.357 and 3.418 Å), with a centroid-centroid distance of 3.6785 (16) Å.

| S-EPMC2979958 | biostudies-literature

catena-Poly[[(triphenyl-phosphane)copper(I)]-di-?-iodido-[(triphenyl-phosphane)copper(I)]-?-{1,2-bis-[1-(pyridin-4-yl)ethyl-idene]hydrazine}].

Project description:In the title coordination polymer, [Cu(2)I(2)(C(14)H(14)N(4))(C(18)H(15)P)(2)](n), the Cu(I) atom is coordinated by two I atoms, one P atom and one N atom in a fairly regular tetra-hedral arrangement. A crystallographic inversion centre generates a Cu(2)I(2) diamond with a Cu-Cu separation of 3.0120?(5)?Å. The complete N,N'-(1-pyridin-4-yl-ethethyl-idene)-hydrazine mol-ecule is also generated by inversion symmetry, and this bridging ligand leads to [011] polymeric chains in the crystal structure.

| S-EPMC3201507 | biostudies-literature

Bis{μ-(E)-methyl 4-[(2-carbamothio-ylhydrazinyl-idene)meth-yl]benzoate-κS:S}bis-[iodido(triphenyl-phosphane-κP)copper(I)].

Project description:The title complex, [Cu(2)I(2)(C(10)H(11)N(3)O(2)S)(2)(C(18)H(15)P)(2)], is a centrosymmetric sulfur-bridged dimer of Cu(I) with PPh(3) and iodine. The Cu(I) atom shows a distorted tetra-hedral geometry, with bite angles ranging from 98.61 (2) to 120.16 (3)°. The intra-molecular Cu⋯Cu distance is 2.8228 (12) Å. The thio-semicarbazone ligand is coordinated only through the S atom. In the crystal, the complex mol-ecules are linked via inter-molecular N-H⋯O hydrogen bonds, resulting in a hydrogen-bonded chain along the b axis.

| S-EPMC3246960 | biostudies-literature

4,4'-(1,2,4,5-Tetra-zine-3,6-di-yl)dibenzo-nitrile.

Project description:Mol-ecules of the title compound, C(16)H(8)N(6), lie on crystallographic inversion centres. A dihedral angle of 16.1 (1)° is formed between the central tetra-zine ring and the plane of each cyano-phenyl group. The mol-ecules form stacks along [100] with a perpendicular inter-planar separation of 3.25 (1) Å. C-H⋯N inter-actions are formed between mol-ecules in neighbouring stacks.

| S-EPMC2968976 | biostudies-literature

1-Benzoyl-3,6-diphenyl-1,4-dihydro-1,2,4,5-tetra-zine.

Project description:In the title compound, C(21)H(16)N(4)O, the central tetra-zine ring adopts an unsymmetrical boat conformation with the two N atoms as the bow and stern. The crystal packing is stabilized by inter-molecular N-H-O hydrogen bonds.

| S-EPMC2983408 | biostudies-literature

Bromidotris(triphenyl-phosphane)silver acetonitrile monosolvate monohydrate.

Project description:In the title compound, [AgBr(C(18)H(15)P)(3)]·C(2)H(3)N·H(2)O, the coordination of the Ag atom is close to ideal tetra-hedral, with the three Ag-P bond lengths almost equal [2.5441 (10), 2.5523 (9) and 2.5647 (10) ° A] and the Ag-Br bond slightly longer [2.7242 (5) Å]. The coordination tetra-hedron is slightly flattened, the Ag atom is closer to the PPP plane; the P-Ag-P angles are wider than the Br-Ag-P angles. The voids in the crystal structure are filled with ordered acetonitrile solvent mol-ecules. The remaining electron density was inter-preted as a water mol-ecule, disordered over three alternative positions. Neither of the solvent mol-ecules is connected by any directional specific inter-actions with the complex.

| S-EPMC3246938 | biostudies-literature

3-Phenyl-6-(2-pyrid-yl)-1,2,4,5-tetra-zine.

Project description:The title compound, C(13)H(9)N(5), is the first asymmetric diaryl-1,2,4,5-tetra-zine to be crystallographically characterized. We have been inter-ested in this motif for incorporation into supra-molecular assemblies based on coordination chemistry. The solid state structure shows a centrosymmetric mol-ecule, forcing a positional disorder of the terminal phenyl and pyridyl rings. The mol-ecule is completely planar, unusual for aromatic rings with N atoms in adjacent ortho positions. The stacking observed is very common in diaryl-tetra-zines and is dominated by π stacking [centroid-to-centroid distance between the tetrazine ring and the aromatic ring of an adjacent molecule is 3.6 Å, perpendicular (centroid-to-plane) distance of about 3.3 Å].

| S-EPMC2914999 | biostudies-literature

Iodido[5-methyl-1H-benzimidazole-2(3H)-thione-?S]bis-(triphenyl-phosphane-?P)copper(I) methanol monosolvate.

Project description:In the title compound, [CuI(C(8)H(8)N(2)S)(C(18)H(15)P)(2)]·CH(3)OH, the coordination environment around the Cu(I) atom is distorted tetra-hedral, defined by two P atoms of two triphenyl-phosphane ligands, one S atom of a 5-methyl-1H-benzimidazole-2(3H)-thione ligand and one I atom. The complex mol-ecules and the methanol solvent mol-ecules are connected via N-H?O and O-H?I hydrogen bonds, forming a chain along [010]. An intra-molecular N-H?I hydrogen bond is also observed.

| S-EPMC3470167 | biostudies-literature

N(1),N(4),3,6-Tetra-methyl-1,2,4,5-tetra-zine-1,4-dicarboxamide.

Project description:The asymmetric unit of the title compound, C(8)H(14)N(6)O(2), contains two independent mol-ecules. In one mol-ecule, the amide-substituted N atoms of the tetra-zine ring deviate from the plane [maximum deviation = 0.028?(1)?Å] through the four other atoms in the ring by 0.350?(2) and 0.344?(2)?Å, forming a boat conformation, and the mean planes of the two carboxamide groups form dihedral angles of 10.46?(13) and 20.41?(12)° with the four approximtely planar atoms in the tetra-zine ring. In the other mol-ecule, the amide-substituted N atoms of the tetra-zine ring deviate from the plane [maximum deviation = 0.033?(1)?Å] through the four other atoms in the ring by 0.324?(2) and 0.307?(2)?Å, forming a boat conformation, and the mean planes of the two carboxamide groups form dihedral angles of 14.66?(11) and 17.08?(10)° with the four approximately planar atoms of the tetra-zine ring. In the crystal, N-H?O hydrogen bonds connect mol-ecules to form a two-dimensional network parallel to (1-1-1). Intra-molecular N-H?N hydrogen bonds are observed.

| S-EPMC3379411 | biostudies-literature

[4-Bromo-N-(pyridin-2-yl-methyl-idene)aniline-?(2)N,N']iodido(triphenyl-phosphane-?P)copper(I).

Project description:In the title compound, [CuI(C(12)H(9)BrN(2))(C(18)H(15)P)], the Cu(I) ion is bonded to one I atom, one triphenyl-phosphane P atom and two N atoms of the diimine ligand in a distorted tetra-hedral geometry. The Schiff base acts as a chelating ligand and coordinates to the Cu(I) atom via two N atoms. In the diimine ligand, the dihedral angle between the pyridine and bromo-phenyl rings is 19.2?(2)°. In the crystal, mol-ecules are connected by ?-? stacking inter-actions between inversion-related pyridine rings [centroid-centroid distance = 3.404?(3)?Å].

| S-EPMC3393242 | biostudies-literature

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