Browse
Submit Data
Databases
API
Help

Dataset Information

15 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

N,N-Bis(4-meth-oxy-benzyl-idene)-3,3'-dimethyl-benzidine.

ABSTRACT: The mol-ecule of the title compund, C(30)H(28)N(2)O(2), a Schiff base synthesised via a condensation reaction between 4-meth-oxy-benzaldehyde and 3,3'-dimethyl-benzidine, a crystallographic twofold rotation axis passes through the mid-point of the C-C bond of the biphenyl unit. Thus, the asymmetric unit comprises one half-mol-ecule. In the biphenyl unit, the aromatic rings are twisted by 13.49?(7)° with respect to one another. The dihedral angles between the biphenyl and meth-oxy-benzene rings are 49.95?(12) and 50.06?(12)°. In the crystal, weak inter-molecular C-H? O hydrogen bonds contribute to the stabilization of the packing.

SUBMITTER: Wang J

PROVIDER: S-EPMC3152131 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Publications

N,N-Bis(4-meth-oxy-benzyl-idene)-3,3'-dimethyl-benzidine.

Wang Juangang J Yang Peipei P Yang Jin J

Acta crystallographica. Section E, Structure reports online 20110622 Pt 7

The mol-ecule of the title compund, C(30)H(28)N(2)O(2), a Schiff base synthesised via a condensation reaction between 4-meth-oxy-benzaldehyde and 3,3'-dimethyl-benzidine, a crystallographic twofold rotation axis passes through the mid-point of the C-C bond of the biphenyl unit. Thus, the asymmetric unit comprises one half-mol-ecule. In the biphenyl unit, the aromatic rings are twisted by 13.49 (7)° with respect to one another. The dihedral angles between the biphenyl and meth-oxy-benzene rings a ...[more]

PMID: 21837136

Similar Datasets

(4Z,6Z)-4,6-Bis(4-meth-oxy-benzyl-idene)-2,2-dimethyl-1,3-dioxan-5-one.

Project description:The title compound, C(22)H(22)O(5), crystallizes with two independent mol-ecules in the asymmetric unit, both of which possess pseudo-C(s) symmetry. The central 1,3-dioxanone rings have envelope conformations, with the C atom bearing the two methyl groups at the flap. The benzene rings of the meth-oxy-benzyl-idene units, attached in the 4- and 6-positions on the central 1,3-dioxanone rings, are tilted in the same direction with dihedral angles varying between 8.2?(1) and 18.1?(1)°. The crystal packing is influenced by ?-stacking inter-actions of the parallel displaced type [centroid-centroid distance of 3.723?(1)?Å for mol-ecule 1 and 3.884?(1)?Å for mol-ecule 2, with ring slippages of 1.432 and 1.613?Å, respectively] and the T-shaped type, with the long mol-ecular axes all aligned along [010].

| S-EPMC3275038 | biostudies-literature

4-Dimethyl-amino-N'-(2-meth-oxy-benzyl-idene)benzohydrazide.

Project description:In the title mol-ecule, C(17)H(19)N(3)O(2), the dihedral angle between the two benzene rings is 14.05?(15)°. In the crystal, mol-ecules are linked through inter-molecular N-H?O hydrogen bonds, forming chains along b.

| S-EPMC3212290 | biostudies-literature

Crystal structure of N,N'-dibenzyl-3,3'-di-meth-oxy-benzidine.

Project description:The title compound, (systematic name: N,N'-dibenzyl-3,3'-dimeth-oxy-1,1'-biphenyl-4,4'-di-amine), C28H28N2O2, was synthesized by the reduction of a Schiff base prepared via a condensation reaction between o-dianisidine and benzaldehyde under acidic conditions. The mol-ecule lies on a crystallographic inversion centre so that the asymmetric unit contains one half-mol-ecule. The biphenyl moiety compound is essentially planar. Two intra-molecular N-H?O hydrogen bonds occur. The dihedral angle between the terminal phenyl and phenyl-ene rings of a benzidine unit is 48.68?(6)°. The methyl-ene C atom of the benzyl group is disordered over two sets of sites, with occupancy ratio 0.779?(18):0.221?(18). In the crystal, mol-ecules are connected by hydrogen bonding between o-dianisidine O atoms and H atoms of the terminal benzyl groups, forming a one-dimensional ladder-like structure. In the data from DFT calculations, the central biphenyl showed a twisted conformation.

| S-EPMC5947784 | biostudies-literature

N'-[Bis(benzyl-sulfan-yl)methyl-idene]-4-meth-oxy-benzohydrazide.

Project description:In the title compound, C(23)H(22)N(2)O(2)S(2), the dihedral angles between the 4-meth-oxy-substituted phenyl ring and the other two phenyl rings are 84.4?(4) and 77.7?(1)°, respectively, while the dihedral angle between the two phenyl rings is 57.5?(2)°. The amino group is not involved in an N-H hydrogen bond. The crystal packing is established by inter-molecular C-H?O packing inter-actions involving a relatively rare weak three-center hydrogen bond between the keto O atom and H atoms of the two nearby phenyl rings, which link the mol-ecules into chains running along the a axis. Additional weak inter-molecular hydrogen-bond inter-actions between the 4-meth-oxy O atom and one of the phenyl rings and provide added stability to the crystal packing.

| S-EPMC3007250 | biostudies-literature

1,5-Bis(2-meth-oxy-benzyl-idene)thio-carbonohydrazide methanol monosolvate.

Project description:The title compound, C17H18N4O2S·CH3OH, was synthesized by the condensation reaction of o-meth-oxy-benzaldehyde with thio-carbohydrazide in methanol. The two benzene rings are inclined each to other at 31.7?(1)°. Inter-molecular N-H?O and bifurcated O-H?N(S) hydrogen bonds link two thio-carbonohydrazide and two solvent mol-ecules into a centrosymmetric unit. These units, related by translation along the b axis, are further aggregated into columns through N-H?S hydrogen bonds.

| S-EPMC3770410 | biostudies-literature

1,5-Bis(4-meth-oxy-benzyl-idene)thio-carbonohydrazide methanol monosolvate.

Project description:In the title compound, C(17)H(18)N(4)O(2)S·CH(3)OH, the two benzene rings in the thio-carbonohydrazide mol-ecule form a dihedral angle of 22.42?(18)°. Pairs of N-H?S hydrogen bonds link thio-carbonohydrazide mol-ecules into centrosymmetric dimers. Methanol solvent mol-ecules serve as donors (O-H?S and O-H?N) and acceptors (N-H?O and C-H?O) of weak inter-molecular hydrogen bonds, which link further these dimers into double ribbons along the b axis.

| S-EPMC3213573 | biostudies-literature

N,N'-Bis(4-chloro-benzyl-idene)-3,3'-dimeth-oxy-biphenyl-4,4'-diamine.

Project description:The title compound, C(28)H(22)Cl(2)N(2)O(2), crystallized with two independent mol-ecules (A and B) in the asymmetric unit. The two mol-ecules differ essentially in the orientation of the outer aromatic rings. These dihedral angles are 56.07?(13) and 27.62?(15)?Å for mol-ecules A and B, respectively. In the crystal, A mol-ecules are related as centrosymmetric pairs through a weak ?-? inter-action [centroid-centroid distance = 3.6959?(15)?Å]. There are also a number of inter-molecular C-H?O, C-H?N and C-H?? inter-actions present.

| S-EPMC3120541 | biostudies-literature

Bis[4-hydr-oxy-N'-(4-meth-oxy-2-oxido-benzyl-idene-?O)benzohydrazidato-?O,N']cadmium(II) dimethyl sulfoxide disolvate.

Project description:The metal atom in the title compound, [Cd(C(15)H(13)N(2)O(4))(2)]·2C(2)H(6)OS, is twice O,N,O'-chelated by two symmetry-related Schiff base ligands to define a trans-N(2)O(4) octa-hedral geometry. Each anion occupies meridional sites of the octa-hedron; the metal atom lies on a special position of site symmetry 2. The dimethyl sulfoxide mol-ecule is a hydrogen-bond acceptor to the -NH- unit, and O-H?O hydrogen bonds link mol-ecules into a supra-molecular chain.

| S-EPMC2977592 | biostudies-literature

Bis[?-N'-(5-bromo-3-meth-oxy-2-oxido-benzyl-idene)-2-hydroxybenzohydra-zidato]bis[(N,N-dimethyl-formamide)-copper(II)].

Project description:The title compound, [Cu(2)(C(15)H(11)BrN(2)O(4))(2)(C(3)H(7)NO)(2)], is derived from the reaction of N'-(5-bromo-2-hy-droxy-3-meth-oxy-benzyl-idene)-2-hy-droxy-benzohydrazide and copper nitrate in a dimethyl-formamide solution in the presence of sodium hydroxide. The compound can be regarded as a binuclear centrosymmetric complex. In the crystal, the Cu(II) atom is fivefold surrounded and adopts a distorted square-pyramidal coordination environment. An intra-molecular O-H?N hydrogen bond stabilizes the mol-ecular conformation.

| S-EPMC3435625 | biostudies-literature

4-Meth-oxy-N'-(4-meth-oxy-benzyl-idene)benzohydrazide.

Project description:The title compound, C(16)H(16)N(2)O(3), was prepared by the reaction of 4-meth-oxy-benzaldehyde with 4-meth-oxy-benzohydrazide in methanol. The dihedral angle between the two benzene rings is 3.1?(3)°. In the crystal, inter-molecular N-H?O hydrogen bonds link the mol-ecules into C(4) chains along the b axis.

| S-EPMC3089322 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

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