Category: 624-28-2

The author of 《Single-molecule white-light of tris-pyrazolonate-Dy3+ complexes》 were Liu, Jiaxiang; Shi, Qi; He, Yani; Fu, Guorui; Li, Wentao; Miao, Tiezheng; Lu, Xingqiang. And the article was published in Inorganic Chemistry Communications in 2019. COA of Formula: C5H3Br2N The author mentioned the following in the article:

Based on the self-assembly of the pyrazolone ligand HPMIP (1-phenyl-3-methyl-4-(isobutyryl)-5-pyrazolone), DyCl3·6H2O and/or the 5-Br-2,2′-bpy (5-bromo-2,2′-bipyridine), two tris-pyrazolonate-Dy3+-complexes [Dy(PMIP)3(H2O)2] (2) and [Dy(PMIP)3(5-Br-2,2′-bpy)] (5) characteristic of dual-emissive emissions toward single-mol. white-light are obtained, resp., and in dependence on the effective suppression from the oscillator-induced quenching by the involved 5-Br-2,2′-bpy, the color-compensation of the residual ligands-based strong emission and the Dy3+-centered (4F9/2 → 6HJ/2 transitions) multiple emissions renders its Dy3+-complex an efficient (Φem = 4.2%) single-mol. white-light. The experimental part of the paper was very detailed, including the reaction process of 2,5-Dibromopyridine(cas: 624-28-2COA of Formula: C5H3Br2N)

2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. Pyridine derivatives lend themselves to many roles in the spirited field of supramolecular chemistry – whether as the ligand backbone of metal-organic polymers or presiding over the key electronic stations of nanodevices. In biochemistry, pyridine-containing cofactors are necessary nutrients on which our lives depend. COA of Formula: C5H3Br2N

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The author of 《Single-molecule white-light of tris-pyrazolonate-Dy3+ complexes》 were Liu, Jiaxiang; Shi, Qi; He, Yani; Fu, Guorui; Li, Wentao; Miao, Tiezheng; Lu, Xingqiang. And the article was published in Inorganic Chemistry Communications in 2019. COA of Formula: C5H3Br2N The author mentioned the following in the article:

Based on the self-assembly of the pyrazolone ligand HPMIP (1-phenyl-3-methyl-4-(isobutyryl)-5-pyrazolone), DyCl3·6H2O and/or the 5-Br-2,2′-bpy (5-bromo-2,2′-bipyridine), two tris-pyrazolonate-Dy3+-complexes [Dy(PMIP)3(H2O)2] (2) and [Dy(PMIP)3(5-Br-2,2′-bpy)] (5) characteristic of dual-emissive emissions toward single-mol. white-light are obtained, resp., and in dependence on the effective suppression from the oscillator-induced quenching by the involved 5-Br-2,2′-bpy, the color-compensation of the residual ligands-based strong emission and the Dy3+-centered (4F9/2 → 6HJ/2 transitions) multiple emissions renders its Dy3+-complex an efficient (Φem = 4.2%) single-mol. white-light. The experimental part of the paper was very detailed, including the reaction process of 2,5-Dibromopyridine(cas: 624-28-2COA of Formula: C5H3Br2N)

2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. Pyridine derivatives lend themselves to many roles in the spirited field of supramolecular chemistry – whether as the ligand backbone of metal-organic polymers or presiding over the key electronic stations of nanodevices. In biochemistry, pyridine-containing cofactors are necessary nutrients on which our lives depend. COA of Formula: C5H3Br2N

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In 2022,Chen, Ruikun; Hu, Pengwei; Xian, Yuxi; Hu, Xianhai; Zhang, Guobing published an article in Macromolecular Rapid Communications. The title of the article was 《Incorporation of Sequence Aza-Substitution and Thiophene Bridge in Linear Conjugated Polymers Toward Highly Efficient Photo-Catalytic Hydrogen Evolution》.COA of Formula: C5H3Br2N The author mentioned the following in the article:

The hydrogen evolution performance of organic photo-catalysts is lagged by numerous factors, such as the narrow photon absorption window, low charge transport, and so on. In this paper, four linear conjugated polymers are designed and synthesized based on dibenzothiophene-S,S-dioxide as an acceptor, and aza-substituted thiophene-phenyl-thiophene with different substitution numbers as co-units. The polymers with the thiophene bridge and aza-substitution exhibit broad visible absorption because of the extended conjugated length and improved planar structures resulting from the intramol. non-covalent interactions (S···N or CH···N). The mono-substitution polymer without the addition of any co-catalysts shows the highest photo-catalytic performances with the hydrogen evolution rates of 8950 and 7388 μmol g-1 h-1 under the UV-vis (>295 nm) and visible (>420 nm) irradiation, resp. The corresponding apparent quantum yields are as high as 8.34, 5.37, and 1.96% for the 420, 500, and 550 nm monochromatic light irradiation, resp., which are much higher than those of the classic polymer (P7) without thiophene bridge and aza-substitution. This work indicats that the incorporation of thiophene bridge enhances visible absorption and aza-substitution optimized co-planarity and activate reactive sites, which should be an effective strategy to improve the photo-catalytic performance of linear conjugated polymers. In the part of experimental materials, we found many familiar compounds, such as 2,5-Dibromopyridine(cas: 624-28-2COA of Formula: C5H3Br2N)

2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. In industry and in the lab, pyridine is used as a reaction solvent, particularly when its basicity is useful, and as a starting material for synthesizing some herbicides, fungicides, and antiseptics.COA of Formula: C5H3Br2N

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Cheng, Peter T. W.; Kaltenbach, Robert F.; Zhang, Hao; Shi, Jun; Tao, Shiwei; Li, Jun; Kennedy, Lawrence J.; Walker, Steven J.; Shi, Yan; Wang, Ying; Dhanusu, Suresh; Reddigunta, Ramesh; Kumaravel, Selvakumar; Jusuf, Sutjano; Smith, Daniel; Krishnananthan, Subramaniam; Li, Jianqing; Wang, Tao; Heiry, Rebekah; Sum, Chi Shing; Kalinowski, Stephen S.; Hung, Chen-Pin; Chu, Ching-Hsuen; Azzara, Anthony V.; Ziegler, Milinda; Burns, Lisa; Zinker, Bradley A.; Boehm, Stephanie; Taylor, Joseph; Sapuppo, Julia; Mosure, Kathy; Everlof, Gerry; Guarino, Victor; Zhang, Lisa; Yang, Yanou; Ruan, Qian; Xu, Carrie; Apedo, Atsu; Traeger, Sarah C.; Cvijic, Mary Ellen; Lentz, Kimberley A.; Tirucherai, Giridhar; Sivaraman, Lakshmi; Robl, Jeffrey; Ellsworth, Bruce A.; Rosen, Glenn; Gordon, David A.; Soars, Matthew G.; Gill, Michael; Murphy, Brian J. published an article in 2021. The article was titled 《Discovery of an Oxycyclohexyl Acid Lysophosphatidic Acid Receptor 1 (LPA1) Antagonist BMS-986278 for the Treatment of Pulmonary Fibrotic Diseases》, and you may find the article in Journal of Medicinal Chemistry.Safety of 2,5-Dibromopyridine The information in the text is summarized as follows:

The oxycyclohexyl acid BMS-986278 (33) is a potent lysophosphatidic acid receptor 1 (LPA1) antagonist, with a human LPA1Kb of 6.9 nM. The structure-activity relationship (SAR) studies starting from the LPA1 antagonist clin. compound BMS-986020 (1), which culminated in the discovery of 33, are discussed. The detailed in vitro and in vivo preclin. pharmacol. profiles of 33, as well as its pharmacokinetics/metabolism profile, are described. On the basis of its in vivo efficacy in rodent chronic lung fibrosis models and excellent overall ADME (absorption, distribution, metabolism, excretion) properties in multiple preclin. species, 33 was advanced into clin. trials, including an ongoing Phase 2 clin. trial in patients with lung fibrosis (NCT04308681). After reading the article, we found that the author used 2,5-Dibromopyridine(cas: 624-28-2Safety of 2,5-Dibromopyridine)

2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. Pyridine is a relatively complex molecule and exhibits a number of different bands in IR spectra. Among others, the bands characterizing the ν8a and ν19b modes have been found to be sensitive to the coordination or protonation of the molecule. Note that the band that is diagnostic for the PyH+ ion at about 1545 cm− 1 (ν19b mode) does not overlap with any of the other bands.Safety of 2,5-Dibromopyridine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

《LaIII and ZnII Cooperatively Template a Metal-Organic Capsule》 was published in Journal of the American Chemical Society in 2020. These research results belong to Yang, Dong; Greenfield, Jake L.; Ronson, Tanya K.; von Krbek, Larissa K. S.; Yu, Le; Nitschke, Jonathan R.. Product Details of 624-28-2 The article mentions the following:

An organic subcomponent was designed with 2-formyl-8-aminoquinoline and triazole-pyridine ends. The relative orientations and geometries of these two ends enabled this subcomponent to assemble together with ZnII and LaIII cations to generate a heterobimetallic tetrahedral capsule. The LaIII cations each template three imine bonds that hold together a 3-fold-sym. metallo-ligand, defining the center of each tetrahedron face. The ZnII cations occupy the other ends of these C3 axes, defining the vertices of the tetrahedron. This is the first example where subcomponent self-assembly brought into being the faces of a polyhedron, as opposed to the vertices. Host-guest studies show pos. cooperative binding toward ReO4-, the encapsulation of which also resulted in the quenching of capsule fluorescence. In the experimental materials used by the author, we found 2,5-Dibromopyridine(cas: 624-28-2Product Details of 624-28-2)

2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. Pyridine’s structure is isoelectronic with that of benzene, but its properties are quite different. Pyridine is completely miscible with water, whereas benzene is only slightly soluble. Like all hydrocarbons, benzene is neutral (in the acid–base sense), but because of its nitrogen atom, pyridine is a weak base.Product Details of 624-28-2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The author of 《Building an electron push-pull system of linear conjugated polymers for improving photocatalytic hydrogen evolution efficiency》 were Wang, Zijian; Mao, Na; Zhao, Yongbo; Yang, Tongjia; Wang, Feng; Jiang, Jia-Xing. And the article was published in Polymer Bulletin (Heidelberg, Germany) in 2019. Recommanded Product: 624-28-2 The author mentioned the following in the article:

Abstract: A series of linear conjugated polymers with different acceptor units has been synthesized and applied as photocatalysts for hydrogen evolution from water splitting. It was found that the introduction of nitrogen atom into the polymer skeleton could efficiently improve the photocatalytic performance due to the improvement in charge carriers’ transport and separation, and the enhanced interfacial wettability from the hydrogen-bonding interaction between nitrogen atom and water mol. The replacement position of nitrogen atom also has a big influence on the photocatalytic performance due to the enhanced internal dipole orientation. A high hydrogen evolution rate of 18.7 μmol h-1 was achieved by PyPm with strong acceptor unit of pyrimidine. The results demonstrate that the construction of an electronic push-pull system is an efficient strategy to produce linear conjugated polymer photocatalysts with high photocatalytic performance. Graphical abstract: [Figure not available: see full text.]. The experimental process involved the reaction of 2,5-Dibromopyridine(cas: 624-28-2Recommanded Product: 624-28-2)

2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. Pyridine is a relatively complex molecule and exhibits a number of different bands in IR spectra. Among others, the bands characterizing the ν8a and ν19b modes have been found to be sensitive to the coordination or protonation of the molecule. Note that the band that is diagnostic for the PyH+ ion at about 1545 cm− 1 (ν19b mode) does not overlap with any of the other bands.Recommanded Product: 624-28-2

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Rani, Chekuri Sharmila; Reddy, Alugubelli Gopi; Susithra, E.; Mak, Kit-Kay; Pichika, Mallikarjuna Rao; Reddymasu, Sreenivasulu; Rao, Mandava Venkata Basaveswara published their research in Medicinal Chemistry Research in 2021. The article was titled 《Synthesis and anticancer evaluation of amide derivatives of imidazo-pyridines》.Computed Properties of C5H3Br2N The article contains the following contents:

Abstract: A novel series of amide functionalized imidazo[1,2-a]pyridine (14a-14j) derivatives were synthesized and screened for their anticancer activities against breast (MCF-7 and MDA-MB-231), lung (A549), and prostate (DU-145) cancer cell lines using MTT assay with etoposide as the standard reference drug. Among them, compound 14 showed highest potency in anticancer activities against MCF-7, MDA-MB-231, A549, and DU-145 cell lines with IC50 values of 0.021 ± 0.0012μM, 0.95 ± 0.039μM, 0.091 ± 0.0053μM, and 0.24 ± 0.032μM, resp. In the part of experimental materials, we found many familiar compounds, such as 2,5-Dibromopyridine(cas: 624-28-2Computed Properties of C5H3Br2N)

2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. Pyridine’s structure is isoelectronic with that of benzene, but its properties are quite different. Pyridine is completely miscible with water, whereas benzene is only slightly soluble. Like all hydrocarbons, benzene is neutral (in the acid–base sense), but because of its nitrogen atom, pyridine is a weak base.Computed Properties of C5H3Br2N

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Nau, Jennifer; Bruening, Vincent; Biesen, Lukas; Knedel, Tim-Oliver; Janiak, Christoph; Mueller, Thomas J. J. published an article in 2022. The article was titled 《Synthesis and Electronic Properties of Conjugated syn,syn-Dithienothiazine Donor-Acceptor-Donor Dumbbells》, and you may find the article in European Journal of Organic Chemistry.Category: pyridine-derivatives The information in the text is summarized as follows:

A series of conjugated syn,syn-dithienothiazine donor-acceptor-donor dumbbells was readily synthesized by Suzuki coupling or a one-pot α-lithiation-zincation-Negishi coupling sequence in moderate to good yield. The title compounds were all electron-rich reversible oxidizable redox systems with a relatively narrow range of oxidation potentials according to cyclic voltammetry. UV/Vis and fluorescence spectroscopy however showed a significant effect of the electronic nature of the conjugated bridging system on absorption and emission characteristics. Furthermore, a highly polar excited state was corroborated by Lippert-Mataga anal. of the emission solvatochromicity as well as by TD-DFT calculation of absorption and emission maxima, which classified these dumbbell systems as redox active, luminescent low band gap chromophores with exptl. determined optical band gaps between 2.20 and 2.50 eV. In the part of experimental materials, we found many familiar compounds, such as 2,5-Dibromopyridine(cas: 624-28-2Category: pyridine-derivatives)

2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. In industry and in the lab, pyridine is used as a reaction solvent, particularly when its basicity is useful, and as a starting material for synthesizing some herbicides, fungicides, and antiseptics.Category: pyridine-derivatives

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Liu, Lunjie; Gao, Mei-Yan; Yang, Haofan; Wang, Xiaoyan; Li, Xiaobo; Cooper, Andrew I. published an article in 2021. The article was titled 《Linear Conjugated Polymers for Solar-Driven Hydrogen Peroxide Production: The Importance of Catalyst Stability》, and you may find the article in Journal of the American Chemical Society.Electric Literature of C5H3Br2N The information in the text is summarized as follows:

Hydrogen peroxide (H2O2) is one of the most important industrial oxidants. In principle, photocatalytic H2O2 synthesis from oxygen and H2O using sunlight could provide a cleaner alternative route to the current anthraquinone process. Recently, conjugated organic materials have been studied as photocatalysts for solar fuels synthesis because they offer synthetic tunability over a large chem. space. Here, we used high-throughput experiments to discover a linear conjugated polymer, poly(3-4-ethynylphenyl)ethynyl)pyridine (DE7), which exhibits efficient photocatalytic H2O2 production from H2O and O2 under visible light illumination for periods of up to 10 h or so. The apparent quantum yield was 8.7% at 420 nm. Mechanistic investigations showed that the H2O2 was produced via the photoinduced stepwise reduction of O2. At longer photolysis times, however, this catalyst decomposed, suggesting a need to focus the photostability of organic photocatalysts, as well as the initial catalytic production rates. The experimental process involved the reaction of 2,5-Dibromopyridine(cas: 624-28-2Electric Literature of C5H3Br2N)

2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. Pyridine is a relatively complex molecule and exhibits a number of different bands in IR spectra. Among others, the bands characterizing the ν8a and ν19b modes have been found to be sensitive to the coordination or protonation of the molecule. Note that the band that is diagnostic for the PyH+ ion at about 1545 cm− 1 (ν19b mode) does not overlap with any of the other bands.Electric Literature of C5H3Br2N

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In 2019,Optical Materials (Amsterdam, Netherlands) included an article by Liang, Aihui; Liu, Zhiqian; Liu, Dewang; Cai, Ping; Wang, Zhiping; Zhou, Wenjing; Hu, Sifan; Tang, Jun; Zhang, Xiaolan; Cai, Mingzhong. COA of Formula: C5H3Br2N. The article was titled 《Novel dinuclear cyclometalated Platinum(II) complex as orange phosphorescent emitters for single-emitting-layer white polymer light-emitting diodes》. The information in the text is summarized as follows:

Novel binuclear platinum complex (FPT)2Pt2(diPic) and mononuclear platinum complex (FPT)Pt(Pic) were designed and synthesized, where FPT is N-(4-(6-(9,9-diethyl-9H-fluoren-2-yl)pyridin-3-yl)phenyl)-N-phenylbenzenamine, diPic is 3-(6-(2-carboxypyridin-3-yloxy)hexyloxy)picolinic acid, and Pic is picolinic acid. The photophys., electrochem. and thermal properties, as well as electroluminescent (EL) properties for both platinum(II) complexes were studied. Compared to (FPT)Pt(Pic), (FPT)2Pt2(diPic) exhibited stronger phosphorescent emission in PL spectra and higher ΦPL, owing to the enhanced spin-orbit interaction of platinum centers. Moreover, the monochromatic devices based on (FPT)2Pt2(diPic) showed better EL properties than (FPT)Pt(Pic). Based on that, the single-emissive-layer WPLEDs using (FPT)2Pt2(diPic) as orange emitter and FIrpic as blue emitter were also obtained. The WPLEDs show best performances with a maximal LE of 1.3 cd/A, and a CIE coordinates of (0.35, 0.37) which is very close to the pure white emission. Work is still underway to improve the device efficiency and color purity of these iridium and platinum complexes co-doped WPLEDs. The results came from multiple reactions, including the reaction of 2,5-Dibromopyridine(cas: 624-28-2COA of Formula: C5H3Br2N)

2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. COA of Formula: C5H3Br2N

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem