Browse
Submit Data
Databases
API
Help

Dataset Information

31 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

4,4'-[(2,7-Dibromo-fluorene-9,9-di-yl)dimethyl-ene]dipyridinium bis-(perchlorate).

ABSTRACT: In the crystal of the title compound, C(25)H(20)Br(2)N(2) (2+)·2ClO(4) (-), inter-molecular N-H?O and C-H?O hydrogen bonds, along with C-H?? inter-actions, stabilize the crystal structure.

SUBMITTER: Xuan Z

PROVIDER: S-EPMC3006750 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Publications

4,4'-[(2,7-Dibromo-fluorene-9,9-di-yl)dimethyl-ene]dipyridinium bis-(perchlorate).

Xuan Zongwei Z Zhao Shanshan S Lu Lude L Wang Xin X Yang Xujie X

Acta crystallographica. Section E, Structure reports online 20100618 Pt 7

In the crystal of the title compound, C(25)H(20)Br(2)N(2) (2+)·2ClO(4) (-), inter-molecular N-H⋯O and C-H⋯O hydrogen bonds, along with C-H⋯π inter-actions, stabilize the crystal structure. ...[more]

PMID: 21587935

Similar Datasets

2,7-Dibromo-9,9-dimethyl-9H-fluorene.

Project description:The title mol-ecule, C(15)H(15)Br(2), has crystallographic m2m site symmetry. As a result, all atoms, except for those of the methyl groups, are exactly coplanar. In the crystal structure, there are weak ?-? inter-actions with a centroid-centroid distance of 3.8409?(15)?Å between symmetry-related mol-ecules, which stack along the c axis.

| S-EPMC2979143 | biostudies-literature

4,5-Dibromo-2,7-di-tert-butyl-9,9-dimethyl-9H-thioxanthene.

Project description:In the title compound, C(23)H(28)Br(2)S, the thioxanthene unit is twisted, showing a dihedral angle of 29.3?(5)° between the benzene rings. When projected along [001], the packing shows two types of channels. The crystal studied was a racemic twin.

| S-EPMC3379388 | biostudies-literature

4,4'-(o-Phenyl-enedioxy-dimethyl-ene)dipyridinium dinitrate.

Project description:The cation of the salt, C(18)H(18)N(2)O(2) (2+)·2NO(3) (-), lies about a twofold rotation axis. The pyridinium ring is almost coplanar with the phenyl-ene ring [dihedral angle between rings = 5.69?(9)°]. The crystal structure shows ?-? stacking inter-actions [centroid-centroid distance = 3.70?(1)?Å] between the pyridinium rings and the phenyl-ene rings, generating a linear chain structure. The cation also forms two N-H?O hydrogen bonds to two nitrate groups.

| S-EPMC2971367 | biostudies-literature

2,2'-(9,9-Dioctyl-9H-fluorene-2,7-di-yl)bis-(4,4,5,5-tetra-methyl-1,3,2-dioxaborolane).

Project description:In the title compound, C(41)H(64)B(2)O(4), one of the five-membered rings has an envelope conformation, while the other, which may be affected by disorder, is nearly coplanar with the fluorene ring. The dihedral angle between the fluorene and dioxaborolane rings is 2.29 (1)°. Two of the methyl groups are disordered over two orientations in 0.67 (3):0.33 (3) and 0.568 (10):0.432 (10) ratios.

| S-EPMC3239080 | biostudies-literature

2,7-Dibromo-9,9-bis-[(pyridin-1-ium-4-yl)meth-yl]fluorene dinitrate.

Project description:In the title compound, C(25)H(20)Br(2)N(2) (2+)·2NO(3) (-), the cation lies on a twofold rotation axis which imposes disorder of the dibromo-fluorene unit. In addition, the unique nitrate anion is disordered over two general sites of equal occupancy. The crystal structure is stabilized by inter-molecular N-H?O hydrogen bonds.

| S-EPMC2979851 | biostudies-other

4,4'-[Oxalylbis(azanediyl)]dipyridinium bis(perchlorate).

Project description:In the title molecular salt, C(12)H(12)N(4)O(2) (2+)·2ClO(4) (-), the complete cation is generated by crystallographic inversion symmetry. In the crystal, the cations and anions are linked via N-H⋯O and N-H⋯(O,O) hydrogen bonds, forming a three-dimensional framework.

| S-EPMC3008989 | biostudies-literature

1,1'-Dimethyl-4,4'-(propane-1,3-di-yl)dipyridinium tetra-bromidocadmate(II).

Project description:In the cation of the title compound, (C(15)H(20)N(2))[CdBr(4)], the dihedral angle between the two pyridine rings is 70.85?(5)°. An inter-molecular ?-? inter-action between the pyridine rings [centroid-centroid distance = 3.900?(4)?Å] is observed. The Cd(II) atom has a distorted tetra-hedral coordination.

| S-EPMC2959373 | biostudies-literature

2,2'-Bi(9,9-di-ethyl-fluorene).

Project description:The title compound, C34H34, systematic name 9,9,9',9'-tetra-ethyl-2,2'-bi(9H-fluorene), crystallized with two crystallographically independent mol-ecules (A and B) in the asymmetric unit. These differ mainly in the orientation of the lateral ethyl chains: in mol-ecule A, they are both on the same side of the mol-ecule whereas in mol-ecule B, one di-ethyl-fluorene moiety has undergone a 180° rotation such that the two pairs of ethyl residues appear on opposite sides of the mol-ecule. The fluorene ring systems subtend dihedral angles of 31.37 (4) and 43.18 (3)° in mol-ecules A and B, respectively. Hence the two fluorene moieties are tilted slightly toward one another. This may be due to the presence of inter-molecular C-H⋯π inter-actions between neighboring mol-ecules. The lateral ethyl chains (excluding H atoms) are also almost planar, with each pair almost perpendicular to the plane of the fluorene system to which they are attached with dihedral angles between the ethyl and fluorene planes in the range 86.04 (8)-89.5 (1)°.

| S-EPMC3998337 | biostudies-literature

4,4'-Dimethyl-1,1'-(p-phenyl-enedimethyl-ene)dipyridinium bis-[7,7,8,8-tetra-cyano-quinodimethanide(1-)].

Project description:In the title salt, C(20)H(22)N(2) (2+)·2C(12)H(4)N(4) (-), the cations and anions stack along the b axis into segregated columns. In the cation, which has a crystallographically imposed centre of symmetry, the dihedral angle between the benzene and pyridine rings is 89.14?(4)°. Centrosymmetrically related anions form dimers by ?-? stacking inter-actions, with centroid-centroid separations of 3.874?(4)?Å. The crystal packing is stabilized by inter-columnar C-H?N hydrogen bonds.

| S-EPMC2979426 | biostudies-literature

Crystal structure of 4,4'-(diazenediyl)dipyridinium nitrate perchlorate.

Project description:The title compound, C10H10N4 2+·NO3 -·ClO4 -, was obtained unexpectedly by the reaction of Co(ClO4)2·6H2O and cytidine-5'-monophosphate with 4,4'-azo-pyridine in an aqueous solution of nitric acid. The mol-ecular structure comprises two planar 4,4'-diazenediyldipyridinium dications lying on inversion centres and perchlorate and nitrate anions in general positions. In the crystal, N-H⋯O hydrogen bonds between dications and anions lead to the formation of [232] chains.

| S-EPMC9443795 | 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