Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

1,2-Bis(3-hydroxy-benzyl-idene)diazane.

ABSTRACT: The asymmetric unit of the title compound, C(14)H(12)N(2)O(2), which was synthesized unexpectedly by refluxing an ethano-lic solution of isonicotinic hydrazide and 3-hydroxy-benzaldehyde, contains one half-mol-ecule with the center of the N-N bond lying on a crystallographic center of inversion. In the crystal structure, mol-ecules are linked by inter-molecular O-H?N hydrogen bonds into an infinite layer structure parallel to (110).

SUBMITTER: Zhu L

PROVIDER: S-EPMC2977383 | biostudies-other | 2009

REPOSITORIES: biostudies-other

ACCESS DATA

Json Xml

Publications

1,2-Bis(3-hydroxy-benzyl-idene)diazane.

Zhu Ling L Zhao Xin-Hua XH

Acta crystallographica. Section E, Structure reports online 20090718 Pt 8

The asymmetric unit of the title compound, C(14)H(12)N(2)O(2), which was synthesized unexpectedly by refluxing an ethano-lic solution of isonicotinic hydrazide and 3-hydroxy-benzaldehyde, contains one half-mol-ecule with the center of the N-N bond lying on a crystallographic center of inversion. In the crystal structure, mol-ecules are linked by inter-molecular O-H⋯N hydrogen bonds into an infinite layer structure parallel to (110). ...[more]

PMID: 21583612

Similar Datasets

1,2-Bis(2-chloro-benzyl-idene)hydrazine.

Project description:The title Schiff base compound, C(14)H(10)Cl(2)N(2), crystallizes with one half-mol-ecule in the asymmetric unit. The mid-point of the N-N bond [1.418 (3) Å] lies on an inversion centre. The mol-ecular skeleton is approximately planar, the largest deviation from the mean plane being 0.143 (4) Å for the N-bonded C atom. The crystal packing exhibits no classical inter-molecular hydrogen bonds.

| S-EPMC2914996 | biostudies-literature

1,2-Bis(3-phen-oxy-benzyl-idene)hydrazine.

Project description:Mol-ecules of the title compound, C(26)H(20)N(2)O(2), reside on crystallographic centres of inversion located at the mid-point of the N-N bond. The benzyl-idene ring is essentially coplanar with the central hydrazine group, with an inter-planar angle of 4.5?(2)°, whereas the phenyl ring is oriented at 34.0?(3)° with respect to the mean plane of the central 1,2-dibenzyl-idenehydrazine group. In the crystal, C-H??(arene)-ring inter-actions link mol-ecules about inversion centres.

| S-EPMC3254433 | biostudies-literature

4-Amino-5-(2-hydroxy-benzyl-idene-amino)benzene-1,2-dicarbonitrile.

Project description:A new tetra-dentate unsymmetrical Schiff base, C(15)H(10)N(4)O, has been synthesized from 4,5-dicyano-o-phenyl-enediamine and o-vanillin in refluxing ethanol. The dihedral angle between the two benzene rings is 39.0 (1)°. There are intra-molecular O-H⋯N and weak inter-molecular N-H⋯O and N-H⋯N inter-actions.

| S-EPMC2977663 | biostudies-literature

N,N'-Bis(3-methoxy-benzyl-idene)ethane-1,2-diamine.

Project description:The mol-ecule of the title bidentate Schiff base ligand, C(18)H(20)N(2)O(2), has twofold crystallographic rotation symmetry, giving one half-mol-ecule per asymmetric unit. It adopts a twisted E configuration with respect to the azomethine C=N bond. The imino group is coplanar with the aromatic ring. The dihedral angle between the two benzene rings is 69.52?(5)°. The meth-oxy group is coplanar with the benzene ring, as indicated by the C-O-C-C torsion angle of -179.56?(8)°. In the unit cell, mol-ecules are linked together by inter-molecular C-H?O hydrogen bonds, forming chains along the a axis; these chains are further stacked down the b axis by both inter-molecular C-H?O and C-H?? inter-actions.

| S-EPMC2960703 | biostudies-literature

N,N'-Bis(2-iodo-benzyl-idene)ethane-1,2-diamine.

Project description:The mol-ecule of the title Schiff base compound, C(16)H(14)I(2)N(2), lies across a crystallographic inversion centre. An intra-molecular C-H?I hydrogen bond forms a five-membered ring, producing an S(5) ring motif. The C=N bond is coplanar with the benzene ring and adopts a trans configuration. Within the mol-ecule, the planar units are parallel, but extend in opposite directions from the dimethyl-ene bridge. An inter-esting feature of the crystal structure is the short I?N [3.2096?(15)?Å] inter-action, which is significantly shorter than the sum of the van der Waals radii of these atoms. In the crystal structure, mol-ecules are linked into one-dimensional extended chains along the c axis and also into one-dimensional extended chains along the b axis through short inter-molecular I?N inter-actions, forming two-dimensional networks parallel to the bc plane.

| S-EPMC2959359 | biostudies-literature

(E,E)-1,2-Bis(2,4,5-trimeth-oxy-benzyl-idene)hydrazine.

Project description:The asymmetric unit of the title compound, C(20)H(24)N(2)O(6), contains one half-mol-ecule, the complete mol-ecule being generated by a crystallographic inversion centre. The mol-ecule is nearly planar with a dihedral angle between the two benzene rings of 0.03?(4)° and the central C/N/N/C plane making a dihedral angle of 8.59?(7)° with each of its two adjacent benzene rings. The two meth-oxy groups at the ortho and meta positions are slightly twisted [C-O-C-C torsion angles = 7.23?(12) and 5.73?(13)°], whereas the meth-oxy group at the para position is almost coplanar with the attached benzene ring [C-O-C-C torsion angle = -2.02?(13)°]. The crystal structure is stabilized by a weak C-H?? inter-action.

| S-EPMC3120387 | biostudies-literature

1,2-Bis(2-hy-droxy-5-methyl-benzyl-idene)hydrazine.

Project description:The mol-ecular structure of the title compound, C16H16N2O2, is stabilized by intra-molecular O-H?N hydrogen bonds with S(6) graph-set motifs, so that the mol-ecule is almost planar, with a C=N-N=C torsion angle of -179.7?(2)° and a dihedral angle of 1.82?(12)° between the aromatic rings. In the crystal, weak C-H?? inter-actions lead to the formation of a three-dimensional network.

| S-EPMC3884483 | biostudies-literature

1,2-Bis[4-(1H-imidazol-1-yl)benzyl-idene]hydrazine.

Project description:The title compound, C(20)H(16)N(6), is centrosymmetric with the mid-point of the N-N bond located on an inversion center. The imidazole ring is oriented at a dihedral angle of 28.03?(6)° with respect to the attached benzene ring. In the crystal, molecules are linked via C-H?N interactions.

| S-EPMC3379501 | biostudies-literature

N,N'-Bis(2,6-dichloro-benzyl-idene)propane-1,2-diamine.

Project description:In the title Schiff base, C(17)H(14)Cl(4)N(2), the atoms of one of the 2,6-dichloro-benzyl-idene units and the central 1,2-diamino-propane grouping are disordered over two sets of sites in a 0.8838 (12):0.1162 (12) ratio. The dihedral angles between the ordered benzene ring and its disordered counterparts are 57.41 (12) and 54.8 (6)° for the major and minor disorder components, respectively. The crystal studied was a racemic twin, the refined ratio of the twin components being 0.37 (5):0.63 (5).

| S-EPMC2983987 | biostudies-literature

(E,E)-1,2-Bis(2,4,6-trimeth-oxy-benzyl-idene)hydrazine.

Project description:The title mol-ecule, C(20)H(24)N(2)O(6), lies on an inversion centre. All non-H atoms are essentially coplanar, with an r.m.s. deviation of 0.0415 (1) Å and a maximum deviation of 0.1476 (1) Å for the meth-oxy C atom at the 4-position of the benzene ring. The crystal structure is stabilized by weak C-H⋯N and C-H⋯π inter-actions.

| S-EPMC3008086 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data