A novel calamitic mesophase semiconductor with the fastest mobility of charged carriers: 1,4-di(5'-octyl-2'-thienyl)benzene.

A comprehensive study of the effect of reactive end groups on the charge carrier transport within polymerized and nonpolymerized liquid crystals

Polymerizable liquid crystalline semiconductors, referred to as reactive mesogens RMs , consist of -conjugated cores with reactive end groups decoupled by an aliphatic spacer. These can be polymerized within the mesophase, maintaining the self-assembled morphology and charge transport characteristics. The polymerized films can then be used in organic electronic applications such as charge trans...

Solid State and Solution Conformation of Di-2-thienyl Telluride: X-Ray Structure and Dipole Moment Studies

The crystal and molecular structure of di-2-thienyl telluride was determined by X-ray analysis. Crystal (monoclinic) data were: a = 9.526(4), b = 6.252(4), c — 16.302(5) Ä; ß = 97.29(3)°, Z = 4, space group P 2 x/c. Hydrogen bonds are absent and only van der Waals forces are deter­ mining crystal packing. The Crlng—Te bond distances suggest little conjugation of Te atom with the rings. Comparis...

Three-chain truxene discotic liquid crystal showing high charged carrier mobility.

A new truxene discotic liquid crystal possessing only three octyloxy chains (3C8OTRX) was studied on the mesomorphic and semiconducting properties to reveal that it exhibits a high drift mobility of positive carriers in the order of 10(-2) cm(2) V(-1) s(-1) in the hexagonal ordered columnar (Col(ho)) mesophase.

Modulation of internuclear communication in multinuclear Ruthenium(II) polypyridyl complexes

The synthesis and characterization of dinuclear ruthenium polypyridyl complexes based on the bridging ligands 1,3-bis-(5’-(pyridin-2’’-yl)-1’H-1’,2’,4’-triaz-3’-yl)-benzene, 1,4-bis-(5’-(pyridin-2’’-yl)-1’H-1’,2’,4’-triaz-3’-yl)-benzene, 2,5-bis-(5’-(pyridin-2’’yl)-1’H-1’,2’,4’-triaz-3’-yl)-thiophene, 2,5-bis-(5’-(pyrazin-2’’-yl)-1’H-1’,2’,4’-triaz3’-yl)-thiophene, and of their mononuclear anal...

Liquid-Crystalline Polyethers Based on Conformational Isomerism Part 22: Hexagonal Columnar Mesophase in Polyethers and Copolyethers Based on 1,4-Bis[2-(4-Hydroxyphenyl)Ethyl]Benzene, 1,2-Bis(4-Hydroxyphenyl)Ethane and 1,9-Dibromononane