In 2019,Journal of Materials Chemistry C: Materials for Optical and Electronic Devices included an article by Chen, Qiang; Zajaczkowski, Wojciech; Seibel, Johannes; De Feyter, Steven; Pisula, Wojciech; Muellen, Klaus; Narita, Akimitsu. Recommanded Product: 2675-79-8. The article was titled 《Synthesis and helical supramolecular organization of discotic liquid crystalline dibenzo[hi,st]ovalene》. The information in the text is summarized as follows:
Dibenzo[hi,st]ovalene (DBOV) has emerged as a new polycyclic aromatic hydrocarbon (PAH) with intriguing optical properties with strong red emission. Nevertheless, DBOV derivatives thus far synthesized either had mesityl groups that hinder the π-π stacking of the aromatic cores or showed low solubility, and the self-assembly of DBOVs has not been investigated. In this work, two 3,4,5-tris(dodecyloxy)phenyl (TDOP) groups are introduced at the meso-positions of DBOV in order to enhance its solubility without compromising the intermol. interactions. The obtained DBOV-TDOP forms at elevated temperatures a discotic liquid crystalline phase. Due to π-π-stacking interactions as well as local phase separation between the aromatic cores and the flexible alkoxy side chains, the DBOV-TDOP mols. self-assemble into columnar stacks. In the low temperature phase, the space demanding TDOP substituents induce a rotation of the disks towards each other leading to an exceptionally long helical pitch within the columnar structures. Moreover, scanning tunnelling microscopy (STM) elucidates intriguing self-assembly of DBOV-TDOP at the interface of highly oriented pyrolytic graphite (HOPG) and 1-phenyloctane (PO). Individual mols. are visualized by STM, revealing that the alkyl chains protrude from the surface into the solution and suggesting that a self-assembled bilayer film structure is predominantly formed. The experimental part of the paper was very detailed, including the reaction process of 1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8Recommanded Product: 2675-79-8)
1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8) is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff.Recommanded Product: 2675-79-81-Bromo-3,4,5-trimethoxybenzene can be used to synthesize N,N′-diarylated indolo[3,2-b]carbazole derivatives, which can find applications in electrophotography.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary