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3-Nitro-phenol-1,3,5-triazine-2,4,6-tri-amine (2/1).

ABSTRACT: The asymmetric unit of the title compound, C3H6N6·2C6H5NO3, contains one melamine and two 3-nitro-phenol mol-ecules. The mean planes of the 3-nitro-phenol mol-ecules are almost orthogonal to the plane of melamine, making dihedral angles of 82.77 (4) and 88.36 (5)°. In the crystal, mol-ecules are linked via O-H⋯N, N-H⋯N and N-H⋯O hydrogen bonds, forming a three-dimensional network. The crystal also features weak C-H⋯π and π-π inter-actions [centroid-centroid distance = 3.9823 (9) Å].

SUBMITTER: Sangeetha V

PROVIDER: S-EPMC3684915 | biostudies-literature |

REPOSITORIES: biostudies-literature

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4-Nitro-phenol-2,4,6-triamino-1,3,5-triazine-water (2/1/1).

Project description:In the title adduct, 2C(6)H(5)NO(3)·C(3)H(6)N(6)·H(2)O, the melamine and the two independent nitrophenol molecules are essentially planar, with maximum deviations of 0.0294 (10), 0.0706 (12) and 0.0742 (12) Å, respectively. In the crystal, N-H⋯N, O-H⋯N, N-H⋯O and O-H⋯O hydrogen bonds link the components into a three-dimensional network. In addition, weak π-π inter-actions [centroid-centroid distances = 3.728 (3) and 3.749 (3) Å] are observed.

| S-EPMC3394065 | biostudies-literature

Dichlorido(2,4,6-tri-2-pyridyl-1,3,5-triazine)manganese(II).

Project description:In the title complex, [MnCl(2)(C(18)H(12)N(6))], the Mn(II) ion is five-coordinated in an approximately square-pyramidal geometry defined by three N atoms of the tridentate 2,4,6-tri-2-pyridyl-1,3,5-triazine ligand and two Cl atoms. In the crystal, the mol-ecules are stacked in columns along the c axis and display inter-molecular ?-? inter-actions between the six-membered rings, the shortest centroid-centroid distance being 3.553?(3)Å. Inter-molecular C-H?Cl contacts are also noted.

| S-EPMC2983677 | biostudies-literature

Dibromido(2,4,6-tri-2-pyridyl-1,3,5-triazine-?N,N,N)manganese(II).

Project description:The Mn(II) ion in the title complex, [MnBr(2)(C(18)H(12)N(6))], is five-coordinated in a distorted square-pyramidal geometry by three N atoms of the tridentate 2,4,6-tri-2-pyridyl-1,3,5-triazine (tptz) ligand and two bromide anions. In the crystal, the pyridyl rings coordinated to the Mn atom are inclined slightly to their carrier triazine ring [dihedral angles = 8.0?(3) and 7.5?(3)°], whereas the uncoordinated pyridyl ring is located approximately parallel to the triazine ring [dihedral angle = 3.7?(3)°]. The complexes are stacked in columns along the a axis and linked by inter-molecular C-H?Br hydrogen bonds, forming chains. In the column, inter-molecular ?-? inter-actions between the six-membered rings are present, the shortest centroid-centroid distance being 3.750?(4)?Å.

| S-EPMC3238591 | biostudies-literature

Trimethyl 2,2',2''-[1,3,5-triazine-2,4,6-tri-yltris-(aza-nedi-yl)]triacetate.

Project description:The title compound, C(12)H(18)N(6)O(6), was synthesized via nucleophilic substitution by reacting 2,4,6-trichloro-1,3,5-triazine with glycine methyl ester hydro-chloride in reflux (dried toluene) under anhydrous atmosphere. Individual mol-ecules self-assemble via strong N-H?O hydrogen bonds into supra-molecular double tapes running parallel to the [010] crystallographic direction. The close packing of supra-molecular tapes is mediated by geometrical reasons in tandem with a number of weaker N-H?O and C-H?N hydrogen-bonding inter-actions.

| S-EPMC3011776 | biostudies-literature

Aqua-glutarato(2,4,6-tri-2-pyridyl-1,3,5-triazine)nickel(II) trihydrate.

Project description:In the title compound, [Ni(C(5)H(6)O(4))(C(18)H(12)N(6))(H(2)O)(2)]·3H(2)O, the Ni(II) atom shows a distorted octa-hedral coordination by three N atoms of the tridentate chelating ligand and three O atoms of two aqua ligands and an O atom of one carboxylate group of the glutarate anion. Mol-ecules are self-assembled via inter-molecular O-H?O and O-H?N hydrogen-bonding inter-actions and ?-? stacking inter-actions [centroid-centroid distance = 3.836?(3)?Å] into a supra-molecular network.

| S-EPMC3099847 | biostudies-other

Crystal structure of 4,4',4''-(1,3,5-triazine-2,4,6-tri-yl)tripyridinium trichloride 2.5-hydrate.

Project description:The asymmetric unit of the title compound, C18H15N6 (3+)·3Cl(-)·2.5H2O, contains two independent (1,3,5-triazine-2,4,6-tri-yl)tripyridinium cations. Both cations are approximately planar, the r.m.s. deviations of fitted non-H atoms being 0.045 and 0.051 Å. In the crystal, extensive O-H⋯Cl, O-H⋯O, N-H⋯Cl and N-H⋯O hydrogen bonds and weak C-H⋯Cl and C-H⋯O inter-actions link the organic cations, Cl(-) anions and water mol-ecules into a three-dimensional supra-molecular architecture. π-π stacking between the pyridine rings of adjacent cations is also observed, the centroid-to-centroid distance being 3.7578 (8) Å.

| S-EPMC4645061 | biostudies-literature

Poly[[(?(3)-2,4,6-tri-4-pyridyl-1,3,5-triazine)copper(I)] nitrate monohydrate].

Project description:In the title compound, {[Cu(C(18)H(12)N(6))]NO(3)·H(2)O}(n), the Cu(I) ion is coordinated by three N atoms [Cu-N 1.962?(3)-2.019?(3)?Å] from three 2,4,6-tri-4-pyridyl-1,3,5-triazine (L) ligands. Each L ligand bridges three Cu(I) atoms, generating a positively charged three-dimensional polymeric network with voids propagated along the b axis. These voids are filled with NO(3) (-) anions with a shortest Cu?O distance of 2.645?(3)?Å and water mol-ecules, which are linked into negatively charged helical chains via inter-molecular O-H?O hydrogen bonds.

| S-EPMC3099806 | biostudies-other

A monoclinic polymorph of dichlorido(2,4,6-tri-2-pyridyl-1,3,5-triazine-κN,N,N)manganese(II).

Project description:The Mn(II) ion in the title complex, [MnCl(2)(C(18)H(12)N(6))], is five-coordinated in a distorted square-pyramidal geometry by three N atoms of the tridentate 2,4,6-tri-2-pyridyl-1,3,5-triazine ligand and two chloride anions. In the crystal, the pyridyl rings are located approximately parallel to their carrier triazine ring, making dihedral angles of 5.0 (1), 3.8 (1) and 3.2 (1)°. Intramolecular C-H⋯N hydrogen bonds are present. The complexes are stacked in columns along the c axis and linked by inter-molecular C-H⋯Cl hydrogen bonds, forming one-dimensional chains. In the column, inter-molecular π-π inter-actions between the six-membered rings are present, the shortest centroid-centroid distance being 3.623 (2) Å. The structure reported herein represents a monoclinic polymorph of the previously reported triclinic form [Ha (2010 ▶). Acta Cryst. E66, m262].

| S-EPMC3200800 | biostudies-literature

2,4,6-Tris(2,4-dimethyl-phen-yl)-1,3,5-triazine.

Project description:Two virtually superimposable mol-ecules comprise the asymmetric unit of the title compound, C(27)H(27)N(3). The range of dihedral angles between the central 1,3,5-triazine ring and the attached benzene rings is 20.88?(14)-31.36?(14)°, and the shape of each mol-ecule is of a flattened bowl. The crystal packing features weak C-H?? bonds and ?-? inter-actions between triazine and benzene rings [centroid-centroid separations = 3.7696?(17) and 3.7800?(18)?Å] that result in the formation of supra-molecular layers in the ac plane. The crystal studied was a non-merohedral twin with a minor twin component of 20.7?(3)%.

| S-EPMC3344576 | biostudies-literature

Diacetato-κO;κO,O'-aqua-(2,4,6-tri-2-pyridyl-1,3,5-triazine-κN,N,N)manganese(II) monohydrate.

Project description:The Mn(II) ion in the title compound, [Mn(CH(3)CO(2))(2)(C(18)H(12)N(6))(H(2)O)]·H(2)O, is seven-coordinated in an approximately penta-gonal-bipyramidal geometry by three N atoms of the tridentate 2,4,6-tri-2-pyridyl-1,3,5-triazine ligand and four O atoms from two distinct anionic acetato ligands and a water mol-ecule. One acetate anion chelates the Mn atom via two O atoms occupying equatorial positions, and the other anion coordinates the Mn atom as a monodentate ligand via one O atom. The complex and solvent water mol-ecules are linked by inter- and intra-molecular O-H⋯O, O-H⋯N and C-H⋯O hydrogen bonds into a three-dimensional network.

| S-EPMC3200744 | biostudies-literature

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