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N,N'-Bis(4-pyridylmethyl-ene)octane-1,8-diamine.

ABSTRACT: The complete molecule of the title compound, C(20)H(26)N(4), is generated by a crystallographic centre of inversion and the central eight-carbon chain adopts a fully extended conformation. In the crystal, the molecules pack in layers parallel to (010).

SUBMITTER: Patra GK

PROVIDER: S-EPMC2977232 | biostudies-other | 2009 Jul

REPOSITORIES: biostudies-other

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N,N'-Bis(4-pyridylmethyl-ene)octane-1,8-diamine.

Patra Goutam Kumar GK Mukherjee Anindita A Mitra Partha P Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20090701 Pt 8

The complete molecule of the title compound, C(20)H(26)N(4), is generated by a crystallographic centre of inversion and the central eight-carbon chain adopts a fully extended conformation. In the crystal, the molecules pack in layers parallel to (010). ...[more]

PMID: 21583445

Similar Datasets

[?-N,N'-Bis(2-pyridylmethyl-ene)ethane-1,2-diamine]bis-{aqua-[N,N'-bis-(2-pyridyl-methyl-ene)ethane-1,2-diamine]manganese(II)} tetra-kis(perchlorate).

Project description:The cation of the salt, [Mn(2)(C(14)H(14)N(4))(3)(H(2)O)(2)](ClO(4))(4), lies on a center of inversion, the center lying midway along the ethyl-ene chain of the bridging N,N'-bis-(2-pyridylmethyl-ene)ethane-1,2-diamine ligand. The Mn atom is chelated by two atoms N atoms of this bridging ligand, and is also coordinated by four N atoms of another ligand. The Mn atom is seven-coordinated in a penta-gonal-bipyramidal environment. The crystal structure displays inter-molecular ?-? inter-actions between adjacent pyridine rings, with a shortest centroid-centroid distance of 3.784?(3)?Å. The perchlorate is linked to the dinuclear cation by O-H?O hydrogen bonds.

| S-EPMC2983616 | biostudies-literature

Diaqua-[N,N'-bis-(2-pyridylmethyl-ene)propane-1,3-diamine]manganese(II) dibromide-aqua-bromido[N,N'-bis-(2-pyridylmethyl-ene)propane-1,3-diamine]manganese(II) bromide-dibromido[N,N'-bis-(2-pyridylmethyl-ene)propane-1,3-diamine]manganese(II) (1/2/1).

Project description:There are three different Mn(II) complexes in the asymmetric unit of the title compound, [Mn(C(15)H(16)N(4))(H(2)O)(2)]Br(2)·2{[MnBr(C(15)H(16)N(4))(H(2)O)]Br}·[MnBr(2)(C(15)H(16)N(4))]. In the neutral complex, the Mn(2+) ion is six-coordinated in a distorted octa-hedral environment by four N atoms of the tetra-dentate ligand N,N'-bis-(2-pyridylmethyl-ene)propane-1,3-diamine (bppd) and two bromide ligands. In the two cationic complexes, the Mn(2+) ions are also six-coordinated in similar environments, but one Mn ion is coordinated by four N atoms of bppd, one Br atom and one O atom of a coordinating water mol-ecule, whereas the other Mn ion is coordinated by four N atoms of bppd and two O atoms of water ligands. The complexes with two coordinated Br atoms or two H(2)O ligands are disposed about a twofold axis through Mn and C atoms with the special positions (, y, 0) and (0, y, ), respectively. The compound displays inter-molecular O-H?Br hydrogen bonding. There are inter-molecular ?-? inter-actions between adjacent pyridine rings, with centroid-centroid distances of 3.822 and 3.833 Å, and a C-H?O inter-action is also present.

| S-EPMC2967905 | biostudies-other

1,8-Bis(3-chloro-anilino)-N,N'-bis-(3-chloro-phen-yl)octane-1,8-diimine.

Project description:There are two half-mol-ecules in the asymmetric unit of the title compound, C(32)H(30)Cl(4)N(4), in both of which the N-H bonds are syn to the meta-chloro substituents in the adjacent benzene ring. The other two Cl atoms of these two mol-ecules are disordered with occunpancy ratios of 0.79 (2):0.21 (2) and 0.68 (1):0.32 (1). Adjacent chloro-phenyl rings make dihedral angles of 74.3 (2) and 63.0 (2)° in the two mol-ecules. In the crystal, inter-molecular N-H⋯N hydrogen bonds link the mol-ecules into infinite chains.

| S-EPMC3051938 | biostudies-literature

N,N'-Bis(2-thienylmethyl-ene)benzene-1,4-diamine.

Project description:The Schiff base, C(16)H(12)N(2)S(2), has been synthesized by refluxing an ethano-lic solution of thio-phene-2-carbaldehyde and benzene-1,4-diamine. The center of the benzene ring is located on a crystallographic center of inversion. The dihedral angle between the benzene and thio-phene rings is 63.6?(1)°.

| S-EPMC2970153 | biostudies-literature

Octane-1,8-diyldipyridinium dibromide dihydrate.

Project description:The asymmetric unit of the title compound, C(18)H(26)N(2) (2+)·2Br(-)·2H(2)O, consists of one-half of the organic cation, one Br(-) anion and one water mol-ecule. The organic cation is situated on a centre of inversion. The dihedral angle between the pyridine ring and the plane of the central linkage is 59.3?(1)°. The cations, anions and water mol-ecules are linked via O-H?Br, C-H?Br and C-H?O hydrogen bonds, forming a three-dimensional framework.

| S-EPMC2915246 | biostudies-literature

2,2'-[Octane-1,8-diyldioxy-bis(nitrilo-methyl-idyne)]diphenol.

Project description:The complete mol-ecule of the title compound, C(22)H(28)N(2)O(4), is generated by a crystallographic inversion centre at the mid-point of the central C-C bond. The two benzene rings are parallel to each other with a perpendicular inter-planar spacing of 1.488?(2)?Å. Intra-molecular O-H?N hydrogen bonds generate two six-membered rings with S(6) motifs. In the crystal, weak inter-molecular C-H?O hydrogen bonds link neighbouring mol-ecules into an infinite three-dimensional network, which is further stabilized by weak C-H?? inter-actions.

| S-EPMC2980204 | biostudies-other

N,N'-Bis(2-furylmethyl-ene)-1,1'-binaphthyl-2,2'-diamine.

Project description:In the title compound, C(30)H(20)N(2)O(2), the orientation of the furyl group may induce a variety of coordination modes with this ligand. The dihedral angle between the two naphthyl rings is 79.25?(7)°. The furyl groups make dihedral angles of 62.0?(1) and 16.3?(2)° with the attached naphthyl groups. The dihedral angle between the two furyl rings is 49.3?(2)°.

| S-EPMC2915326 | biostudies-literature

N,N-Bis(2-thienylmethyl-ene)cyclo-hexane-1,4-diamine.

Project description:The title compound, C(16)H(18)N(2)S(2), lies about an inversion center with only half of the mol-ecule in the asymmetric unit. The cyclo-hexane ring adopts a chair conformation, and the terminal thio-phene rings are in a transoid orientation, with an S?S separation between the two terminal 2-thio-phene rings of 11.6733?(9)?Å.

| S-EPMC2970409 | biostudies-literature

3,6-Diaza-octane-1,8-diaminium diiodide.

Project description:The asymmetric unit of the title salt, C(6)H(20)N(4) (2+)·2I(-), comprises half a 3,6-diaza-octane-1,8-diaminium dication plus an I(-) anion. The dications are symmetrical and lie across crystallographic centres of inversion. In the crystal, the ions form a network involving mainly weak N-H?I inter-molecular inter-actions: two H atoms of the ammonium group form inter-actions with two I(-) anions and the H atom of the secondary amine forms a weak inter-action with a third I(-) cation. The third ammonium H atom is hydrogen bonded to a secondary amine of an adjacent cation. The backbone of the cation does not form a uniformly trans chain, but is 'kinked' [C-N-C-C torsion angle = 71.5?(2)°], probably to accommodate the direct hydrogen bond between the ammonium group and the secondary amine in an adjacent cation.

| S-EPMC3414312 | biostudies-literature

N,N'-Bis(1,3-thia-zol-2-yl)methyl-ene-diamine.

Project description:In the title compound, C(7)H(8)N(4)S(2), the dihedral angle between the thia-zoline rings is 71.25 (13)°. In the crystal, inter-molecular N-H⋯N hydrogen bonds connect the mol-ecules into zigzag chains parallel to the ab plane.

| S-EPMC3238970 | biostudies-literature

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