853658-67-0

Upstream product

• 3383-83-3 (S)-1-bromo-3,7-dimethyloctane 
• 123-31-9 hydroquinone 

Downstream Products

• 853658-71-6 C₂₆H₄₇BO₄ 
• 921869-63-8 1,4-diiodo-2,5-bis[(S)-3,7-dimethyloctyloxy]benzene 
• 921869-71-8 1,4-bis((S)-3,7-dimethyloctyloxy)-2,5-diethynylbenzene 
• 921869-67-2 1,4-bis((S)-3,7-dimethyloctyloxy)-2,5-bis(trimethylsilylethynyl)benzene 

Relevant academic research and scientific papers

Influence of branching on the Chiral self-assembly of poly(phenylene ethynylene)

In this contribution, we report the synthesis of chiral all-conjugated branched poly(phenylene ethynylenes) with a controlled amount of branching. Subsequently, the selfassembly of these PPEs is studied by means of UV-vis, fluorescence spectroscopy, and D

White-light emitting hydrogen-bonded supramolecular copolymers based on #-conjugated oligomers

Three different ?-conjugated oligomers (a blue-emitting oligofluorene, a green-emitting oligo(phenylene vinylene), and a red-emitting perylene bisimide) have been functionalized with self-complementary quadruple hydrogen bonding ureidopyrimidinone (UPy) units at both ends. The molecules self-assemble in solution and in the bulk, forming supramolecular polymers. When mixed together in solution, random noncovalent copolymers are formed that contain all three types of chromophores, resulting in energy transfer upon excitation of the oligofluorene energy donor. At a certain mixing ratio, a white emissive supramolecular polymer can be created in solution. In contrast to their unfunctionalized counterparts, bis-UPy-chromophores can easily be deposited as smooth thin films on surfaces by spin coating. No phase separation is observed in these films, and energy transfer is much more efficient than in solution, giving rise to white fluorescence at much lower ratios of energy acceptor to donor. Light emitting diodes based on these supramolecular polymers have been prepared from all three types of pure materials, yielding blue, green, and red devices, respectively. At appropriate mixing ratios of these three compounds, white electroluminescence is observed. This approach yields a toolbox of molecules that can be easily used to construct ?-conjugated supramolecular polymers with a variety of compositions, high solution viscosities, and tuneable emission colors.

From vesicles to helical nanotubes: A sergeant-and-soldiers effect in the self-assembly of oligo(p-phenyleneethynylene)s

Coassembly of short molecular wires OPE1 with chiral analogues OPE2, both of which are CD silent, exhibited a sergeant-and-soldiers effect that resulted in transformation of vesicular aggregates of OPE1 into CD-active helical nanotubes (see schematic pict

Facile control of chiral packing in poly(p-phenylenevinylene) spin-cast films

The facile control of chiral packing in poly(p-phenylenevinylene) (PPV) spin-cast films was investigated. The circular dichroism (CD) spectroscopy was used to demonstrate that spin-cast films from chiral π-conjugated polymer can be easily and selectively fabricated from different solvents to have correspondingly different architectures with opposite handedness. By varying the spin-casting solvent or annealing conditions, three distinct film architectures can be prepared from the PPV. The architectures included two chiral organizations with opposite handedness and a disordered assembly that does not exhibit and chiral packing.