The intramolecular π–π stacking interaction does not always work for improving the stabilities of light-emitting electrochemical cells

2012 ◽  
Vol 13 (11) ◽  
pp. 2442-2449 ◽  
Author(s):  
Fuli Zhang ◽  
Lian Duan ◽  
Juan Qiao ◽  
Guifang Dong ◽  
Liduo Wang ◽  
...  
Keyword(s):  
Electrochemical Cells ◽  
Light Emitting ◽  
Stacking Interaction ◽  
Π Stacking ◽  
Π Stacking Interaction

Long-Living Emitting Electrochemical Cells Based on Supramolecular π-π Interactions

2009 ◽  
Vol 1197 ◽  
Author(s):  
Rubén D. Costa ◽  
Enrique Ortí ◽  
Stefan Graber ◽  
Markus Neuburger ◽  
Catherine E. Hausecroft ◽  
...  
Keyword(s):  
Electrochemical Cells ◽  
Stacking Interactions ◽  
Light Emitting ◽  
Stacking Interaction ◽  
Face To Face ◽  
Π Interactions ◽  
Π Stacking ◽  
Π Stacking Interaction

AbstractThe complex [Ir(ppy)2(dpbpy)][PF6] (Hppy = 2-phenylpyridine, dpbpy = 6,6'-diphenyl-2,2'-bipyridine) has been prepared and evaluated as an electroluminescent component for light-emitting electrochemical cells (LECs). The complex exhibits two intramolecular face-to-face π-stacking interactions and long-lived LECs have been constructed; the device characteristics are not significantly improved in comparison to analogous LECs with 6-phenyl-2,2'-bipyridine with only one π-stacking interaction.

Synthesis and characterization of a linked, π-π stacked organotin compound of 2-mercapto-6-nitrobenzothiazolyl diphenyltin chloride with 2-ethoxyl-6-nitrobenzothiazole

2003 ◽  
Vol 81 (7) ◽  
pp. 825-831 ◽  
Author(s):  
Chunlin Ma ◽  
Qin Jiang ◽  
Rufen Zhang
Keyword(s):  
Title Compound ◽  
Organotin Compound ◽  
X Ray Diffraction ◽  
X Ray ◽  
Stacking Interaction ◽  
X Ray Crystallography ◽  
H Nmr ◽  
Π Stacking ◽  
Π Stacking Interaction ◽  
Molecular Components

The new organotin compound, Ph2Sn(Cl)[S(C7H3N2O2S)]·[(C7H3N2O2S)OEt], assembled by an intermolecular aromatic benzothiazole–benzothiazole π-π stacking interaction, has been synthesized by the reaction of diphenyltin dichloride with 2-mercapto-6-nitrobenzothiazole. The title compound was characterized by elemental, IR, 1H NMR, and X-ray crystallography analyses. Single-crystal X-ray diffraction data reveals that the title compound has two different molecular components. The component Ph2Sn(Cl)[S(C7H3N2O2S)] has a pentacoordinate tin, which further forms an infinite one-dimensional chain by intermolecular non-bonded Cl···S interactions, resulting in an intercalation lattice that holds (C7H3N2O2S)OEt molecules. The formation of the molecule (C7H3N2O2S)OEt as well as its intercalated mechanism has also been discussed.Key words: organotin, assemble, π-π stacking interaction, 2-mercapto-6-nitrobenzothiazole, non-bonded interaction, crystal structure.

scholarly journals N-Cyclohexyl-N-{[3-(4,6-dimethoxypyrimidin-2-yloxy)pyridin-2-yl]methyl}4,6-dimethoxypyrimidin-2-amine

2012 ◽  
Vol 68 (4) ◽  
pp. o1272-o1272
Author(s):  
De-Cai Wang ◽  
Yu-Jing Wang ◽  
Jun-Song Song ◽  
Ping Wei ◽  
Ping-Kai Ou-yang
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Pyridine Ring ◽  
Chair Conformation ◽  
Dihedral Angles ◽  
Stacking Interaction ◽  
Compound C ◽  
Π Stacking ◽  
Π Stacking Interaction

In the title compound, C24H30N6O5, the cyclohexyl ring adopts a chair conformation, while the remainder of the molecule adopts a U-shape. The dihedral angles between the pyridine ring and the pendant pyrimidine rings are 69.04 (12) and 75.99 (9)°. The two pyrimidine rings, however, are nearly parallel to one another, with a dihedral angle of 8.56 (15)° between them. They are also involved in an intramolecular π–π stacking interaction with a distance of 3.6627 (18) Å between the ring centroids. In the crystal, C—H...O contacts link the molecules into chains along thebaxis.

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