277316-22-0

Upstream product

• 115-19-5 2-methyl-but-3-yn-2-ol 
• 137436-30-7 2,5-dibromo-1,4-didodecyloxybenzene 
• 3230-09-9 1,4-bis-dodecyloxy-benzene 
• 145483-66-5 1,4-bis(dodecyloxy)-2,5-diiodobenzene 

Downstream Products

• 313947-71-6 1-[1-(2,2'-bipyridin-5-ylethynyl)-4-(2,2'-bipyridin-5,5'-yldiethynyl)-2,5-didodecyloxybenzene]-4-(2-methyl-3-butyn-2-ol)-2,5-didodecyloxybenzene 
• 287478-30-2 1-[1-(2,2'-bipyridin-5-ylethynyl)-4-(2,2'-bipyridin-5,5'-yldiethynyl)-2,5-didodecyloxybenzene]-4-ethynyl-2,5-didodecyloxybenzene 
• 287478-28-8 1-(2,2'-bipyridin-5-ylethynyl)-4-(2,2'-bipyridin-5-ylethynyl-5-bromo)-2,5-didodecyloxybenzene 
• 313947-70-5 1-(2-methyl-3-butyn-2-ol)-4-(2,2'-bipyridin-5-ylethynyl)-2,5-didodecyloxybenzene 
• 287478-26-6 1-(2,2'-bipyridin-5-ylethynyl)-4-ethynyl-2,5-didodecyloxybenzene 
• 277316-25-3 1-(3-hydroxy-3-methyl-1-butynyl)-2,5-di(dodecyloxy)-4-[(2,6-bis(2-pyridinyl)pyridine-4-yl)ethynyl]benzene 
• 243835-44-1 1-[(4-bromo-2,5-di(dodecyloxy)phenyl)ethynyl]-2,5-di(dodecyloxy)-4-[(2,6-bis(2-pyridinyl)pyridine-4-yl)ethynyl]benzene 
• 243835-41-8 1,4-[(2,6-(2-C₅H₄N)C₅H₂N-4-CC)]-2,5-(OC₁₂H₂₅-n)2 
• 243835-42-9 1-ethynyl-2,5-di(dodecyloxy)-4-[(2,6-bis(2-pyridinyl)pyridine-4-yl)ethynyl]benzene 
• 243835-38-3 1-(3-hydroxy-3-methyl-1-butynyl)-4-ethynyl-2,5-di(dodecyloxy)benzene 
• 152270-00-3 1,4-bis(dodecyloxy)-2,5-diethynylbenzene 

Relevant academic research and scientific papers

Oligo(p-phenylene ethynylene)-BODIPY derivatives: Synthesis, energy transfer, and quantum-chemical calculations

The synthesis and energy-transfer properties of a series of oligo(p-phenylene ethynylene)-BODIPY (OPEB) cassettes are reported. A series of oligo(p-phenylene ethynylene)s (OPEs) with different conjugated chain lengths as energy donor subunit in the energy-transfer system were capped at both ends with BODIPY chromophores as energy-acceptor subunits. The effect of the conjugated chain of OPEs on energy transfer in the OPEB cassettes was investigated by UV/Vis and fluorescence spectroscopy and modeling. With increasing number n of phenyl acetylene units (n=1-7), the absorption and emission maxima of OPEn are bathochromically shifted. In the OPEBn analogues, the absorption maximum assigned to the BODIPY moieties is independent of the length of the OPE spacer. However, the relative absorption intensity of the BODIPY band decreases when the number of phenyl acetylene units is increased. The emission spectra of OPEBn are dominated by a band peaking at 613 nm, corresponding to emission of the BODIPY moieties, regardless of whether excitation is at 420 or 550 nm. Furthermore, a very small band is observed with a maximum between 450 and 500 nm, and its intensity relative to that of the BODIPY emission increases with increasing n, that is, the excited state of OPE subunits is efficiently quenched in OPEBn by energy transfer to the BODIPY moieties. Energy transfer (ET) from OPEn to BODIPY in OPEBn is very efficient (all φET values are greater than 98 %) and only slightly decreases with increasing length of the OPE units. These results are supported by theoretical studies that show very high energy transfer efficiency (φET>75 %) from the OPE spacer to the BODIPY end-groups for chains with up to 15-20 units.

Diethynylbenzene-based liquid crystalline semiconductor for solution-processable organic thin-film transistors

We report here the synthesis and characterization of novel diethynylbenzene-based liquid crystalline semiconductor (P1) for organic thin-film transistors (OTFTs), Compound P1 was synthesized by the Sonogashira coupling reaction between 2-bromo-5-(4-hexylt

Synthesis of soluble bis-terpyridine ligands bearing ethynylene- phenylene spacers

Soluble and rigid terpyridine-based ditopic ligands bearing one to five phenylene/ethynylene modules have been synthesized by way of a stepwise procedure. Each module is attached to the terpyridine unit via an ethynylene fragment and functionalized at the