Tag: 200-300

《The liquid crystal Click procedure for oligothiophene-tethered phthalocyanines – self-assembly, alignment and photocurrent》 was written by Dechant, Moritz; Lehmann, Matthias; Uzurano, Genya; Fujii, Akihiko; Ozaki, Masanori. Synthetic Route of C9H11BrO3This research focused onzinc phthalocyanine oligothiophene tether preparation photocurrent property; fluorescence thermotropic liquid crystal zinc phthalocyanine oligothiophene tether. The article conveys some information:

A series of star-shaped liquid crystals (LCs) with a phthalocyanine donor core, oligothiophene antennae and fullerene acceptors have been successfully prepared This hierarchical self-assembly results in a nanosegregated helical donor-acceptor-antennae LC-system promoted by the recently discovered Click procedure. This model system reveals all photophys. prerequisites for energy conversion, charge generation and transport. Uniform amorphous thin films of 150 nm could be produced by bar-coating. Annealing did not only induce the formation of columns via the Click procedure but also partially homeotropically aligned the non-clearing sample in a sandwich geometry (ITO and Ag/MoO3). This has been confirmed by microscopic studies and the measurement of photocurrent, which increased by a factor of 300 after the annealing step. In the experiment, the researchers used 1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8Synthetic Route of C9H11BrO3)

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.Synthetic Route of C9H11BrO31-Bromo-3,4,5-trimethoxybenzene can be used to synthesize analogs of HA14-1, which shows promising anticancer properties.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis and mesomorphic properties of laterally fluorinated alkyl 4”-alkylterphenyl-4-yl carbonate liquid crystals》 was published in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices in 2014. These research results belong to Choluj, Artur; Kula, Przemyslaw; Dabrowski, Roman; Tykarska, Marzena; Jaroszewicz, Leszek. Reference of 1-Bromo-4-ethoxy-2-fluorobenzene The article mentions the following:

Fifteen series of homologues of a variety of mono-, di- and trifluorosubstituted alkyl 4”-alkylterphenyl-4-yl carbonates have been synthesized and their mesomorphic properties have been determined From among 95 prepared compounds, 40 pure nematogens have been found, as well as 55 mesogens with orthogonal and tilted smectic phases in broad temperature ranges. The type and combination of the LC phase strongly depend on the position and number of the fluorine atoms. Phys. properties and correlations between the mol. core fluorosubstitution, the length of the terminal chains and the type and sequence of the liquid crystalline phases, have been determined The compounds are useful for the formulation of nematic mixtures as well as ferroelec. ones. After reading the article, we found that the author used 1-Bromo-4-ethoxy-2-fluorobenzene(cas: 107713-66-6Reference of 1-Bromo-4-ethoxy-2-fluorobenzene)

1-Bromo-4-ethoxy-2-fluorobenzene(cas: 107713-66-6) belongs to organobromine compounds.Most of the natural organobromine compounds are produced by marine organisms , and several brominated metabolites with antibacterial , antitumor , antiviral , and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. Reference of 1-Bromo-4-ethoxy-2-fluorobenzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Original synthesis and spectroscopic study of thiophene triazine derivatives with enhanced luminescence properties》 was written by Rodrigues, Alysson Duarte; Marcotte, Nathalie; Quignard, Francoise; Deabate, Stefano; Robitzer, Mike; Lerner, Dan A.. Synthetic Route of C4H2Br2SThis research focused onthiophene triazine preparation arylation palladium catalyst fluorescence quantum yield; Fluorescence; Fluorescent label; Oligothiophene; Palladium catalyzed C–H arylation; Thiophene; Triazine. The article conveys some information:

A straightforward access to π-conjugated oligothiophenes bearing amino-rich groups was developed. Palladium-catalyzed C-H arylation applied in the main step of the synthesis allowed to couple 2-thiophenecarbonitriles and aryl bromides with moderate to excellent yields (35-93%). Then, to improve their basic fluorescence properties, these compounds were transformed into their 2,4-diamino-1,3,5-triazine derivatives, also with good to excellent yields (74-98%). UV-Visible absorption and fluorescence studies identified a strongly emissive mol. (fluorescence quantum yield: ΦF = 0.78 ± 0.05), which could find use in sensors for applications in biol. and in material chem. We observed an antagonistic effect in the spectroscopic properties of oligothiophenes bearing 2,4-diamino-1,3,5-triazine, resulting in improved absorptive and emissive properties for more constrained structures having shorter oligothiophenes chains. After reading the article, we found that the author used 2,5-Dibromothiophene(cas: 3141-27-3Synthetic Route of C4H2Br2S)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene polymerizes by debromination with magnesium catalyzed by nickel compounds to form poly(2,5- thienylene) .Synthetic Route of C4H2Br2S

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Dinker, Manish Kumar; Zhao, Kan; Liu, Song; Qi, Shi-Chao; Li, Yu-Xia; Liu, Gong-Ping; Ding, Lifeng; Liu, Xiao-Qin; Sun, Lin-Bing published an article in Journal of Materials Chemistry A: Materials for Energy and Sustainability. The title of the article was 《Permanent cavities in ionic liquids created by metal-organic polyhedra》.Recommanded Product: 626-40-4 The author mentioned the following in the article:

As an emerging type of material, porous liquids combine the fluidity of liquids with the permanent porosity of porous solids, which makes them promising for various applications. Despite several significant attempts earlier, the porous liquid system still requires the novel entries of porous hosts and bulky liquids Here, we report a new porous liquid system based on the coalition of metal-organic polyhedra and well-designed bulky ionic liquids As a proof of concept, the typical metal-organic polyhedra, Pd12L24 where L represents the ligands, are employed as porous hosts. Also, a polyethylene glycol-linked bis-imidazolium-based bulky ionic liquid with a mol. size larger than the pore aperture of Pd12L24 is designed as a solvent, yielding type II porous ionic liquids These liquid materials possessing permanent cavities, good thermal stability and long-term durability have captured high CO2 compared to neat ionic liquids Besides, they are found separating CO2 from N2 and CH4 mols. not only as an entity but also as supported porous liquid membranes. We expect that the present strategy can be used to construct other porous liquids with specific functionality for addnl. applications.3,5-Dibromoaniline(cas: 626-40-4Recommanded Product: 626-40-4) was used in this study.

3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Hydrogen peroxide (H2O2) and peroxy acids generally add an oxygen atom to the nitrogen of amines. With primary amines, this step is normally followed by further oxidation, leading to nitroso compounds, RNO, or nitro compounds, RNO2. Secondary amines are converted to hydroxylamines, R2NOH, and tertiary amines to amine oxides, R3NO.Recommanded Product: 626-40-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary