Tag: 400-500

《In Situ Electropolymerization Enables Ultrafast Long Cycle Life and High-Voltage Organic Cathodes for Lithium Batteries》 was written by Zhao, Chen; Chen, Zifeng; Wang, Wei; Xiong, Peixun; Li, Benfang; Li, Mengjie; Yang, Jixing; Xu, Yunhua. Electric Literature of C18H12Br3N And the article was included in Angewandte Chemie, International Edition in 2020. The article conveys some information:

Organic cathode materials have attracted extensive attention because of their diverse structures, facile synthesis, and environmental friendliness. However, they often suffer from insufficient cycling stability caused by the dissolution problem, poor rate performance, and low voltages. An in situ electropolymerization method was developed to stabilize and enhance organic cathodes for lithium batteries. 4,4′,4”-Tris(carbazol-9-yl)-triphenylamine (TCTA) was employed because carbazole groups can be polymerized under an elec. field and they may serve as high-voltage redox-active centers. The electropolymerized TCTA electrodes demonstrated excellent electrochem. performance with a high discharge voltage of 3.95 V, ultrafast rate capability of 20 A g-1, and a long cycle life of 5000 cycles. Our findings provide a new strategy to address the dissolution issue and they explore the mol. design of organic electrode materials for use in rechargeable batteries. The experimental part of the paper was very detailed, including the reaction process of 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

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Formula: C18H12Br3NIn 2020 ,《Reticular Synthesis of tbo Topology Covalent Organic Frameworks》 appeared in Journal of the American Chemical Society. The author of the article were Kang, Xing; Han, Xing; Yuan, Chen; Cheng, Cheng; Liu, Yan; Cui, Yong. The article conveys some information:

The metal-organic framework (MOF) HKUST-1 with a tbo topol. serves as an archetypal tunable and isoreticular framework platform for targeting desired applications, but the design and synthesis of tbo-covalent organic frameworks (COFs) remains a formidable challenge. Here we demonstrate the successful use of reticular chem. as an appropriate strategy for the design and deliberate construction of COFs with a tbo-topol. The judicious selection of the perquisite planar building blocks, 4-connected square tetramine of porphyrin and 3-connected trigonal trialdehydes of triphenylamine, allows the condensation of two tbo-COFs, the first examples of COFs with a tbo topol. The resulting COFs both crystallize in the cubic Pm3 space group and adopt a non-interpenetrated open framework, in which each tritopic linker connects to three square units forming a truncated Td-octahedron and occupies the alternating triangular faces of the truncated octahedron. Owing to the presence of two different types of photoredox-active moieties, the two COFs can be efficient heterogeneous photocatalysts for the oxidative hydroxylation of arylboronic acids and the reductive defluoroalkylation of trifluoromethylaroms. with alkenes. The present finding will provide an impetus to examine the potential of tbo-COFs as a new platform for engineering multifunctional materials via expansion and functionalization of building blocks. The results came from multiple reactions, including the reaction of Tris(4-bromophenyl)amine(cas: 4316-58-9Formula: C18H12Br3N)

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

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Application In Synthesis of Tris(4-bromophenyl)amineIn 2020 ,《Porphyrin-Based Porous Organic Polymer as Peroxidase Mimics for Sulfide-Ion Colorimetric Sensing》 appeared in ACS Sustainable Chemistry & Engineering. The author of the article were Li, Yanhong; Fang, Yishan; Gao, Wenqiang; Guo, Xiaojun; Zhang, Xiaomei. The article conveys some information:

The effective synthesis of functional nanoplatforms for simple, selective, and sensitive hydrogen sulfide detection has received significant attention because of the toxicity of hydrogen sulfide. Here, a new porphyrin-based porous organic polymer, FePPOPEPA, was fabricated through a Pd-/CuI-catalyzed Sonogashira cross-coupling reaction between tris(4-ethynylphenyl)amine and iron(III) 5,10,15,20-tetrakis-(4′-bromophenyl)porphyrinato (FeTBrPP). Results showed that FePPOPEPA has a porous framework, high BET surface areas, wide pore size distribution, abundant surface catalytic active sites, and excellent stability as well as reusability. In the presence of H2O2, FePPOPEPA showed high peroxidase-like activity toward 3,3′,5,5′-tetramethylbenzidine. Based on these findings, FePPOPEPA was used for the first time as an efficient colorimetric probe for sensitive and selective detection of sulfide ions with a low detection limit (0.013μM) within 3 min. The feasibility of this method for real water samples was validated via a standard addition experiment Moreover, the catalytic inhibition mechanism of S2- to FePPOPEPA was disclosed by XPS spectra. The graphic porphyrin-based porous organic polymer as peroxidase mimics for sulfide-ion colorimetric sensing. In the experiment, the researchers used many compounds, for example, Tris(4-bromophenyl)amine(cas: 4316-58-9Application In Synthesis of Tris(4-bromophenyl)amine)

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

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Quantitative Detection of G-Quadruplex DNA in Live Cells Based on Photon Counts and Complex Structure Discrimination》 was written by Liu, Liu-Yi; Liu, Wenting; Wang, Kang-Nan; Zhu, Bo-Chen; Xia, Xiao-Yu; Ji, Liang-Nian; Mao, Zong-Wan. Application In Synthesis of Tris(4-bromophenyl)amine And the article was included in Angewandte Chemie, International Edition in 2020. The article conveys some information:

G-quadruplex DNA show structural polymorphism, leading to challenges in the use of selective recognition probes for the accurate detection of G-quadruplexes in vivo. Herein, we present a tripodal cationic fluorescent probe, NBTE, which showed distinguishable fluorescence lifetime responses between G-quadruplexes and other DNA topologies, and fluorescence quantum yield (Φf) enhancement upon G-quadruplex binding. We determined two NBTE-G-quadruplex complex structures with high Φf values by NMR spectroscopy. The structures indicated NBTE interacted with G-quadruplexes using three arms through π-π stacking, differing from that with duplex DNA using two arms, which rationalized the higher Φf values and lifetime response of NBTE upon G-quadruplex binding. Based on photon counts of FLIM, we detected the percentage of G-quadruplex DNA in live cells with NBTE and found G-quadruplex DNA content in cancer cells is 4-fold that in normal cells, suggesting the potential applications of this probe in cancer cell detection.Tris(4-bromophenyl)amine(cas: 4316-58-9Application In Synthesis of Tris(4-bromophenyl)amine) was used in this study.

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Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

COA of Formula: C18H12Br3NIn 2021 ,《Porous Covalent Organic Polymers for Efficient Fluorocarbon-Based Adsorption Cooling》 appeared in Angewandte Chemie, International Edition. The author of the article were Zheng, Jian; Wahiduzzaman, Mohammad; Barpaga, Dushyant; Trump, Benjamin A.; Gutierrez, Oliver Y.; Thallapally, Praveen; Ma, Shengqian; McGrail, B. Peter; Maurin, Guillaume; Motkuri, Radha Kishan. The article conveys some information:

Adsorption-based cooling is an energy-efficient renewable-energy technol. that can be driven using low-grade industrial waste heat and/or solar heat. Here, we report the first exploration of fluorocarbon adsorption using porous covalent organic polymers (COPs) for this cooling application. High fluorocarbon R134a equilibrium capacities and unique overall linear-shaped isotherms are revealed for the materials, namely COP-2 and COP-3. The key role of mesoporous defects on this unusual adsorption behavior was demonstrated by mol. simulations based on atomistic defect-containing models built for both porous COPs. Anal. of simulated R134a adsorption isotherms for various defect-containing atomistic models of the COPs shows a direct correlation between higher fluorocarbon adsorption capacities and increasing pore volumes induced by defects. Combined with their high porosities, excellent reversibility, fast kinetics, and large operating window, these defect-containing porous COPs are promising for adsorption-based cooling applications. In the part of experimental materials, we found many familiar compounds, such as Tris(4-bromophenyl)amine(cas: 4316-58-9COA of Formula: C18H12Br3N)

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

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Reference of Tris(4-bromophenyl)amineIn 2021 ,《A COF-Like N-Rich Conjugated Microporous Polytriphenylamine Cathode with Pseudocapacitive Anion Storage Behavior for High-Energy Aqueous Zinc Dual-Ion Batteries》 appeared in Advanced Materials (Weinheim, Germany). The author of the article were Zhang, Haozhe; Zhong, Linfeng; Xie, Jinhao; Yang, Fan; Liu, Xiaoqing; Lu, Xihong. The article conveys some information:

Conducting polymers with good electron conductivity and rich redox functional groups are promising cathode candidates for constructing high-energy aqueous zinc batteries. However, the glaring flaw of active-site underutilization impairs their electrochem. performance. Herein, we report a poriferous polytriphenylamine conjugated microporous polymer (CMP) cathode capable of accommodating Cl- anions in a pseudocapative-dominated manner for energy storage. Its specific 3D, covalent-organic-framework-like conjugated network ensures high accessibility efficacy of N active sites (up to 83.2% at 0.5 A g-1) and distinct physicochem. stability (87.6% capacity retention after 1000 cycles) during repeated charging/discharging courses. Such a robust CMP electrode also leads to a zinc dual-ion battery device with a high energy d. of 236 W h kg-1 and a maximum power d. of 6.8 kW kg-1, substantially surpassing most recently reported organic-based zinc batteries. This study paves the way for the rational design of advanced CMP-based organic cathodes for high-energy devices. The experimental part of the paper was very detailed, including the reaction process of Tris(4-bromophenyl)amine(cas: 4316-58-9Reference of Tris(4-bromophenyl)amine)

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Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Wang, Zejun; Zhou, Jiawen; Zhang, Yiheng; Zhu, Weiya; Li, Yuan published an article in Angewandte Chemie, International Edition. The title of the article was 《Accessing Highly Efficient Photothermal Conversion with Stable Open-Shell Aromatic Nitric Acid Radicals》.Related Products of 4316-58-9 The author mentioned the following in the article:

It is very challenging to prepare stable radicals as they are usually thermodynamically or kinetically unstable in air. Herein, a series of star-shaped aromatic nitric acid radicals were prepared via facile demethylation and consequent oxidation As phenol radicals without steric hindrance group protection, they exhibit high electrochem. and thermal stability due to their rich resonance structures including closed-shell nitro-like and open-shell nitroxide structure with unpaired electrons delocalized in conjugated backbones. Among them, TPA-TPA-O6 powder exhibited extremely wide absorption from 300 to 2000 nm covering the whole solar spectral irradiance, high photothermal conversion efficiency, and negligible photobleaching effect in seawater desalination. Under the irradiation of one sunlight, the water evaporation efficiency of TPA-TPA-O6 is recorded to be as high as 89.41 % and the water evaporation rate is 1.293 kg m-2 h-1, which represents the top performance in pure organic small mol. photothermal materials. In the part of experimental materials, we found many familiar compounds, such as Tris(4-bromophenyl)amine(cas: 4316-58-9Related Products of 4316-58-9)

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Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Li, Yanrong; Rajasree, Sreehari Surendran; Lee, Ga Young; Yu, Jierui; Tang, Jian-Hong; Ni, Ruidong; Li, Guigen; Houk, Kendall. N.; Deria, Pravas; Stang, Peter J. published an article in 2021. The article was titled 《Anthracene-triphenylamine-based platinum(II) metallacages as synthetic light-harvesting assembly》, and you may find the article in Journal of the American Chemical Society.Application In Synthesis of Tris(4-bromophenyl)amine The information in the text is summarized as follows:

Two trigonal prismatic metallacages 1 and 2 bearing triphenylamine and anthracene moieties are designed and synthesized to fabricate artificial light-harvesting systems (LHSs). These two cages are prepared via the coordination-driven self-assembly of two anthracene-triphenylamine-based tripyridyl ligand 3, three dicarboxylates, and six 90° Pt(II) acceptors. The design of the anthracene-triphenylamine chromophore makes possible the tunable excited-state property (like the emissive transition energy and lifetime) as a function of the solvent polarity, temperature, and concentration The synergistic photophys. footprint of these metallacages, defined by their high absorptivity and emission quantum yield (QY) relative to the free ligand 3, signifies them as a superior light sensitizer component in an LHS. In the presence of the fluorescent dye Nile Red (NR) as an energy acceptor, the metallacages display efficient (>93%) excited energy transfer to NR through an apparent static quenching mechanism in viscous DMSO solvent. After reading the article, we found that the author used Tris(4-bromophenyl)amine(cas: 4316-58-9Application In Synthesis of Tris(4-bromophenyl)amine)

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Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Application In Synthesis of Tris(4-bromophenyl)amineIn 2021 ,《Pyrene-containing conjugated organic microporous polymers for photocatalytic hydrogen evolution from water》 appeared in Catalysis Science & Technology. The author of the article were Mohamed, Mohamed Gamal; Elsayed, Mohamed Hammad; Elewa, Ahmed M.; EL-Mahdy, Ahmed F. M.; Yang, Cheng-Han; Mohammed, Ahmed A. K.; Chou, Ho-Hsiu; Kuo, Shiao-Wei. The article conveys some information:

Photoactive conjugated microporous polymers (CMPs) are emerging as porous materials capable of mediating the photocatalytic evolution of H2 from water. In this study, we synthesized three pyrene-based CMPs (Py-F-CMP, Py-TPA-CMP, Py-TPE-CMP) through Sonogashira-Hagihara cross-couplings of 1,3,6,8-tetraethynylpyrene (Py-T, as a common monomer building block) with 2,7-dibromo-9H-fluorene (F-Br2), tris(4-bromophenyl)amine (TPA-Br3), and 1,1,2,2-tetrakis(4-bromophenyl)ethene (TPE-Br4), resp., in the presence of Pd(PPh3)4 in DMF/Et3N. We then characterized the chem. structures, crystallinities, thermal stabilities, surface morphologies, and porosities of these three new CMPs. Brunauer-Emmett-Teller (BET) analyses and tests of photocatalytic H2 production revealed that Py-TPA-CMP displayed the highest BET surface area (454 m2 g-1), highest total pore volume (0.28 cm3 g-1), highest H2 evolution rate (19 200 μmol h-1 g-1), and highest apparent quantum yield (15.3%) when compared with those of Py-F-CMP, Py-TPE-CMP, and other organic porous materials. In the experimental materials used by the author, we found Tris(4-bromophenyl)amine(cas: 4316-58-9Application In Synthesis of Tris(4-bromophenyl)amine)

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Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Carlson, Brenden; Kaminsky, Werner; Tong, Linyue; Phelan, Gregory D. published their research in Journal of Chemical Crystallography on December 31 ,2015. The article was titled 《Structure and Phase Transition of 4,7-Bis-(4′-cyano-biphenyl-4-yl)-[1,10]phenanthroline》.Reference of 4,7-Bis(4-bromophenyl)-1,10-phenanthroline The article contains the following contents:

4,7-Bis-(4′-cyano-biphenyl-4-yl)-[1,10]phenanthroline (cnbiphphen) is synthesized from a palladium mediated coupling between 4-cyanobenzene boronic acid and 4,7-bis(4-bromophenyl)-[1,10]phenanthroline. The single crystal X-ray structure was measured at both 298(2) K and 90(2) K. The asym. unit of the title compound in the low-temperature phase, C38H22N4·HCCl3, is comprised of one cnbiphphen mol. and one chloroform solvent mol. Addnl. symmetry relates one-half of the title compound to the other at room temperature During cooling the structure experiences a reversible phase transition from A 2/a (different setting of C 2/c, with a and c exchanged to match lattice parameters of both phases) to P 21/c. The crystal packing of the title compound consists primarily of electronic charge interactions between the cyano moieties. The chloroform solvent mol-ecule is situated in a cavity between two phenanthroline systems and is associated to two nitrogen atoms of cnbiphphen mols. through Cl3C-H···Nphen van der Waals interaction.4,7-Bis(4-bromophenyl)-1,10-phenanthroline(cas: 97802-08-9Reference of 4,7-Bis(4-bromophenyl)-1,10-phenanthroline) was used in this study.

4,7-Bis(4-bromophenyl)-1,10-phenanthroline(cas: 97802-08-9) belongs to organobromine compounds.Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Alkyl bromides are mainly used as alkylating agents and also find application as a solvent to extract oil from seeds and wool. Reference of 4,7-Bis(4-bromophenyl)-1,10-phenanthroline

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary