Tag: 400-500

Formula: C18H12Br3NIn 2021 ,《Facile antibacterial materials with turbine-like structure for P. aeruginosa infected scald wound healing》 appeared in Biomaterials Science. The author of the article were Tao, Qin; Guo, Lixia; Diao, Haipeng; Feng, Liheng. The article conveys some information:

Pseudomonas aeruginosa (P. aeruginosa) is a popular hospital pathogen and the major cause of morbidity and mortality in patients with cystic fibrosis (CF) and impaired immune system. Herein, we designed and synthesized a series of organic mols. MTEBT-n (n = 1, 2, 3) to specifically and effectively kill P. aeruginosa. Hydrophobic triphenylamine was selected as the skeleton, and hydrophilic primary ammonium salts that can easily penetrate the cell walls of Gram-neg. bacteria and accumulate in the bacteria were used to adjust the hydrophilic-hydrophobic ratio of the mols., resulting in different antibacterial activity. As the hydrophilic-hydrophobic ratio increased in the structures from MTEBT-1 to MTEBT-3, the antibacterial activity of the three mols. were gradually enhanced with killing effects of 25%, 75% and 95% against P. aeruginosa, resp. The antibacterial mechanisms of MTEBT-n were demonstrated to destroy the bacterial membrane, which could effectively prevent the development of drug resistance. In addition, MTEBT-3 with the highest antibacterial activity could inhibit P. aeruginosa biofilm very well, and heal the P. aeruginosa infected scald wounds. This work provides a potential organic antimicrobial material for clin. antimicrobial therapy of P. aeruginosa infection, and offers a mol. engineering strategy for designing new antimicrobials. In addition to this study using Tris(4-bromophenyl)amine, there are many other studies that have used Tris(4-bromophenyl)amine(cas: 4316-58-9Formula: C18H12Br3N) was used in this study.

In general, Tris(4-bromophenyl)amine(cas: 4316-58-9) is often used in the synthesis of porous luminescent covalent–organic polymers (COPs)Formula: C18H12Br3N

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Bromide – Wikipedia,
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Zhong, Fuyao; Ma, Mingyu; Zhong, Zhuoran; Lin, Xinrong; Chen, Mao published an article in 2021. The article was titled 《Interfacial growth of free-standing PANI films: toward high-performance all-polymer supercapacitors》, and you may find the article in Chemical Science.SDS of cas: 4316-58-9 The information in the text is summarized as follows:

Along with high power capability and energy d., long cycle life is regarded an essential performance requirement for energy storage devices. The rapid capacitance decline of conducting polymer-based electrodes remains a major tech. challenge and precludes their practical applications in supercapacitors. In this work, a polyaniline (PANI) network is synthesized via interfacial Buchwald-Hartwig polymerization for the first time, facilitating the construction of covalently connected PANI networks by ligand-promoted C-N bond formation. Particularly, the interfacial synthesis and subsequent gas release from pre-anchored protecting groups allow bottom-up and efficient access to porous crosslinked PANI (PCL-PANI) films that are free-standing and solvent-resistant. Upon assembling into supercapacitors, the PCL-PANI material enables an unprecedent long-term charge-discharge cycling performance (>18 000 times) without clear capacitance loss for an additive-free pseudocapacitive system. In addition, this synthesis affords electrodes entirely consisting of conducting polymers, yielding highly reversible gravimetric capacitance at 435 F gelectrode-1 in a two-electrode system, and a high gravimetric energy of 12.5 W h kgelectrode-1 while delivering an outstanding power d. of 16 000 W kgelectrode-1, which is 10-fold higher than those of conventional linear PANI composite supercapacitors. This synthetic approach represents a novel and versatile strategy to generate additive/binder-free and high-performance conducting thin-films for energy storage. In the experiment, the researchers used Tris(4-bromophenyl)amine(cas: 4316-58-9SDS of cas: 4316-58-9)

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Bromide – Wikipedia,
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In 2022,Earley, J. D.; Zieleniewska, A.; Ripberger, H. H.; Shin, N. Y.; Lazorski, M. S.; Mast, Z. J.; Sayre, H. J.; McCusker, J. K.; Scholes, G. D.; Knowles, R. R.; Reid, O. G.; Rumbles, G. published an article in Nature Chemistry. The title of the article was 《Ion-pair reorganization regulates reactivity in photoredox catalysts》.Electric Literature of C18H12Br3N The author mentioned the following in the article:

Cyclometalated and polypyridyl complexes of d6 metals are promising photoredox catalysts, using light to drive reactions with high kinetic or thermodn. barriers via the generation of reactive radical intermediates. However, while tuning of their redox potentials, absorption energy, excited-state lifetime and quantum yield are well-known criteria for modifying activity, other factors could be important. Here we show that dynamic ion-pair reorganization controls the reactivity of a photoredox catalyst, [Ir[dF(CF3)ppy]2(dtbpy)]X. Time-resolved dielec.-loss experiments show how counter-ion identity influences excited-state charge distribution, evincing large differences in both the ground- and excited-state dipole moment depending on whether X is a small associating anion (PF6-) that forms a contact-ion pair vs. a large one that either dissociates or forms a solvent-separated pair (BArF4-). These differences correlate with the reactivity of the photocatalyst toward both reductive and oxidative electron transfer, amounting to a 4-fold change in selectivity toward oxidation vs. reduction These results suggest that ion pairing could be an underappreciated factor that modulates reactivity in ionic photoredox catalysts. In the experiment, the researchers used Tris(4-bromophenyl)amine(cas: 4316-58-9Electric Literature of C18H12Br3N)

In other references, Tris(4-bromophenyl)amine(cas: 4316-58-9) is often used in the synthesis of porous luminescent covalent–organic polymers (COPs)Electric Literature of C18H12Br3N

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Bromide – Wikipedia,
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In 2022,Biesen, Lukas; Krenzer, Julius; Nirmalananthan-Budau, Nithiya; Resch-Genger, Ute; Mueller, Thomas J. J. published an article in Chemical Science. The title of the article was 《Asymmetrically bridged aroyl-S,N-ketene acetal-based multichromophores with aggregation-induced tunable emission》.Safety of Tris(4-bromophenyl)amine The author mentioned the following in the article:

Asym. bridged aroyl-S,N-ketene acetals and aroyl-S,N-ketene acetal multichromophores can be readily synthesized in consecutive three-, four-, or five-component syntheses in good to excellent yields by several successive Suzuki-couplings of aroyl-S,N-ketene acetals and bis(boronic)acid esters. Different aroyl-S,N-ketene acetals as well as linker mols. yield a library of 23 multichromophores with substitution and linker pattern-tunable emission properties. This allows control of different communication pathways between the chromophores and of aggregation-induced emission (AIE) and energy transfer (ET) properties, providing elaborate aggregation-based fluorescence switches. In the experiment, the researchers used many compounds, for example, Tris(4-bromophenyl)amine(cas: 4316-58-9Safety of Tris(4-bromophenyl)amine)

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Bromide – Wikipedia,
bromide – Wiktionary

Computed Properties of C18H12Br3NIn 2020 ,《Unconventional Chiral Amplification in Luminescent Supramolecular Polymers Based on Trisbiphenylamine-tricarboxamides》 was published in Organic Materials. The article was written by Dorca, Yeray; Naranjo, Cristina; Ghosh, Goutam; Gomez, Rafael; Fernandez, Gustavo; Sanchez, Luis. The article contains the following contents:

We describe the synthesis of two propeller-shaped, emissive trisbiphenylamines 1and (S)-2. While achiral 1 forms supramol. polymers following a cooperative mechanism, the self-assembly of chiral (S)-2 can be described by an isodesmic mechanism. Despite the isodesmic character of the supramol. polymerization of (S)-2, an efficient transfer of chirality from the embedded point chirality of the peripheral side chains to the aggregates is demonstrated. The co-assembly of 1and (S)-2 in a sergeants-and-soldiers experiment shows a very different dichroic response to that registered for pristine (S)-2, with a copolymerization curve displaying two transitions. Both these transitions coincide with those observed for the pristine achiral and chiral components, thus suggesting a self-sorting effect. After reading the article, we found that the author used Tris(4-bromophenyl)amine(cas: 4316-58-9Computed Properties of C18H12Br3N)

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Bromide – Wikipedia,
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COA of Formula: C18H12Br3NIn 2021 ,《Constructing Cationic Metal-Organic Framework Materials Based on Pyrimidyl as a Functional Group for Perrhenate/Pertechnetate Sorption》 was published in Inorganic Chemistry. The article was written by Kang, Kang; Li, Lei; Zhang, Meiyu; Zhang, Xingwang; Lei, Lecheng; Xiao, Chengliang. The article contains the following contents:

Cationic metal-organic framework (MOF) materials are widely used in the anion separation field, but there are few reports of pyrimidyl ligands as building units. In this work, three new cationic MOFs based on pyrimidyl as functional group ligands were synthesized for the removal of radioactive pertechnetate from aqueous solution The pyrimidyl ligands were designed by incorporating pyrimidyl units into the skeletons of benzene, triphenylamine, and tetraphenylethylene, resp. Taking advantage of multiple coordination sites of pyrimidyl groups, three cationic MOFs (ZJU-X11, ZJU-X12, and ZJU-X13) with diverse structures were solvothermally synthesized using silver ion as the metal node. SEM-energy-dispersive spectroscopy mapping demonstrated that these three cationic MOFs could capture ReO4- via anion exchange, but the sorption capabilities were distinctly different. With 95% removal toward ReO4-, ZJU-X11 showed the strongest anion-exchange competence among the three MOFs. According to the results of batch experiments, ZJU-X11 could achieve sorption equilibrium within 10 min, remove 518 mg of ReO4- per 1 g of ZJU-X11, remove most of ReO4- after four recycles, and maintain satisfactory selectivity in the presence of excess competing anions, which is one of the best MOF materials for removing ReO4-/TcO4- among the three cationic MOFs. This work indicates that the pyrimidyl group is a promising multiple site to build versatile cationic MOFs. In the experiment, the researchers used Tris(4-bromophenyl)amine(cas: 4316-58-9COA of Formula: C18H12Br3N)

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Bromide – Wikipedia,
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《Molecularly engineered hole-transport material for low-cost perovskite solar cells》 was written by Pashaei, Babak; Bellani, Sebastiano; Shahroosvand, Hashem; Bonaccorso, Francesco. Product Details of 4316-58-9 And the article was included in Chemical Science in 2020. The article conveys some information:

Triphenylamine-N-phenyl-4-(phenyldiazenyl)aniline (TPA-AZO) is synthesized via a facile CuI-catalyzed reaction and used as a hole transport material (HTM) in perovskite solar cells (PSCs), as an alternative to the expensive spiro-type mol. materials, including com. 2,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene (spiro-OMeTAD). Exptl. and computational investigations reveal that the HOMO (HOMO) level of TPA-AZO is deeper than that of spiro-OMeTAD, and optimally matches with the conduction band of the perovskite light absorber. The use of TPA-AZO as a HTM results in PSC prototypes with a power conversion efficiency (PCE) approaching that of the spiro-OMeTAD-based reference device (17.86% vs. 19.07%). Moreover, the use of inexpensive starting reagents for the synthesis of TPA-AZO makes the latter a new affordable HTM for PSCs. In particular, the cost of 1 g of TPA-AZO ($22.76) is significantly lower compared to that of spiro-OMeTAD ($170-475). Overall, TPA-AZO-based HTMs are promising candidates for the implementation of viable PSCs in large-scale production In the experiment, the researchers used Tris(4-bromophenyl)amine(cas: 4316-58-9Product Details of 4316-58-9)

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Bromide – Wikipedia,
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《A Mechanistic and Cautionary Case Study on the Use of Alternating Potential in Electrochemical Reactions》 was written by Wills, Alfie G.; Poole, Darren L.; Alder, Catherine M.; Reid, Marc. Application of 4316-58-9 And the article was included in ChemElectroChem in 2020. The article conveys some information:

A mechanistic study on use of alternating potential (i. e. electrode polarity switching) in synthetic organic electrochem. method development using the IKA ElectraSyn 2.0 is described. Unexpected product selectivity challenges revealed that alternating potential facilitated direct, rather than mediated, electrochem. benzylic C-H oxidation of toluene derivatives While constant potential irresp. of the direction of electrode polarity was expected, our in-depth anal. revealed changes in the magnitude of applied potential with periodic switching of electrode polarity. These findings highlight an equipment engineering concern that is likely to influence and inform optimization strategies for a wide range of synthetic organic electrochem. methods under development. The results came from multiple reactions, including the reaction of Tris(4-bromophenyl)amine(cas: 4316-58-9Application of 4316-58-9)

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Bromide – Wikipedia,
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《Conjugated microporous polymer network grafted carbon nanotube fibers with tunable redox activity for efficient flexible wearable energy storage》 was published in Chemistry of Materials in 2020. These research results belong to Wei, Lyu; Zhang, Weiyi; Liu, He; Liu, Yunpeng; Zuo, Hongyu; Yan, Chunna; Faul, Charl F. J.; Thomas, Arne; Zhu, Meifang; Liao, Yaozu. Safety of Tris(4-bromophenyl)amine The article mentions the following:

Fiber-shaped supercapacitors (FSCs) are promising energy storage devices that meet the growing demands for the miniaturization, flexibility, and compatibility of wearable electronics. However, when compared with batteries, the low energy d. remains the main limitation to practical applications. A conjugated microporous polymer (CMP) network synthesized using Buchwald-Hartwig cross-coupling reactions featured tailorable porous structures, reversible redox chem., and demonstrated highly efficient capacitive performance. Herein, the CMP network that grafted on carbon nanotube fibers (CNF@CMP) with high areal specific capacitance (671.9 mF cm-2 at a c.d. of 1 mA cm-2) was successfully achieved for a polytriphenylamine (PTPA)-based network. All-solid-state sym.-twisted CNF@PTPA FSCs fabricated with PVA/H3PO4 as a gel electrolyte exhibited a high specific areal capacitance of 398 mF cm-2 (0.28 mA cm-2), a maximal operating voltage of 1.4 V, and an energy d. of 18.33μWh cm-2. Moreover, they showed excellent flexibility and mech. stability retaining 84.5% of the initial capacitance after 10,000 bending cycles. These materials provide a new route to high-performance wearable supercapacitors (HPWS) with wide potential applications in wearable electronics, as shown by the examples provided. After reading the article, we found that the author used Tris(4-bromophenyl)amine(cas: 4316-58-9Safety of Tris(4-bromophenyl)amine)

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Bromide – Wikipedia,
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《Tuning phosphorescence features of triphenylamines by varying functional groups and intermolecular interactions》 was written by Goudappagouda; Asokan, Kiran; Nayak, Rashmi; Krishnan, Retheesh; Babu, Sukumaran Santhosh. SDS of cas: 4316-58-9This research focused ontriphenylamine intermol interaction phosphorescence fluorescence property. The article conveys some information:

Organic room temperature phosphorescent materials are known for their synthetic feasibility, tunable phosphorescence wavelength and lifetime, etc. Hence new design strategies have been applied on various fluorophores to improve phosphorescence features. Among those, triphenylamines are phosphorescence active due to the presence of nitrogen atom, propeller mol. structure, and intermol. interactions in the crystal state. Here we have studied the room temperature phosphorescence of a series of triphenylamines with various functional groups. Detailed studies have shown that the phosphorescence can be fine-tuned by functional group modification. A long phosphorescence lifetime around 100 ms at room temperature in air can be achieved by the interplay of intermol. interactions, singlet-triplet energy gap and extent of intersystem crossing using functional group variation. Interestingly, an exciplex assisted ultralong phosphorescence lifetime (more than 20 times) is observed for a combination of triphenylamine and naphthalenemonoimide in air. In addition to this study using Tris(4-bromophenyl)amine, there are many other studies that have used Tris(4-bromophenyl)amine(cas: 4316-58-9SDS of cas: 4316-58-9) was used in this study.

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Referemce:
Bromide – Wikipedia,
bromide – Wiktionary