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Recommanded Product: 11-Bromoundecanoic acid. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Stimuli-sensitive aggregation-induced emission of organogelators containing mesogenic Au(I) complexes. Author is Panthai, Supattra; Fukuhara, Ryota; Hisano, Kyohei; Tsutsumi, Osamu.

As the luminescence from conventional organic luminophores is typically quenched in constrained environments, the aggregation-induced emission (AIE) phenomenon is of interest for the development of materials that exhibit strong luminescence in condensed phases. Herein, new bismesogenic Au complexes were developed as organogelators and their photophys. properties, including their AIE characteristics, were investigated in organogels and crystals. The crystals of the gold complexes exhibited room-temperature phosphorescence with relatively high quantum yields. Moreover, the gold complexes also showed photoluminescence in the organogels and we demonstrated that the reversible switching of the luminescence intensity was induced by the sol-gel phase transition. The intense photoluminescence in the crystal and gel was induced by the restricted internal motion of the luminophore in the mol. aggregates. However, in the sol, the network structure of the organogel was destroyed and the nonradiative deactivation of the excited states was enhanced. As a result, we can conclude that the switching of the luminescence intensity was induced by changes in the aggregated structures of the mols. The developed Au-complex-based gelators are excellent candidates for the realization of stimuli-responsive soft and smart luminescent materials.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Category: catalyst-ligand. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Aqueous Photon Upconversion by Anionic Acceptors Self-Assembled on Cationic Bilayer Membranes with a Long Triplet Lifetime. Author is Asthana, Deepak; Hisamitsu, Shota; Morikawa, Masa-aki; Duan, Pengfei; Nakashima, Takuya; Kawai, Tsuyoshi; Yanai, Nobuhiro; Kimizuka, Nobuo.

Anionic 9,10-diphenylanthracene chromophores electrostatically bound to cationic, chiral bilayer membranes show ordered self-assembly in water. The integrity of the chromophore-accumulated aqueous bilayer membranes is ensured by multiple hydrogen-bond networks introduced in the bilayer, which allowed adaptive accommodation of the guest chromophores at the inner surface of the bilayer while maintaining their cohesive interactions. The regular chromophore alignment in the aqueous assembly is confirmed by differential scanning calorimetry, CD, and circularly polarized luminescence spectra. Excitonic migration of triplet energy occurs among the chromophores densely organized at the inner surface of the bilayer, which lead to triplet-triplet annihilation-based photon upconversion (TTA-UC). This acceptor-bilayer self-assemblies show a notably long triplet lifetime of 8.0 ms, which allows TTA-UC at sufficiently low excitation light intensity. These results demonstrate the usefulness of the simple electrostatic accumulation approach for TTA-UC chromophores where the suitable mol. design of the TTA-UC chromophore-integrated bilayer membranes plays a key role.

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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Water of crystallization of amino acids and their salts》. Authors are Hayashi, Koichi; Nagashima, Nobuya; Hino, Tetsuo.The article about the compound:DL-Histidine monohydrochloride monohydratecas:123333-71-1,SMILESS:O=C(O)C(N)CC1=CNC=N1.[H]Cl.[H]O[H]).COA of Formula: C6H12ClN3O3. Through the article, more information about this compound (cas:123333-71-1) is conveyed.

DTA and thermogravimetry showed the following dehydration temperatures: L-alginine dihydrate 50°, L-alginine L-aspartate monohydrate 88°, L-alginine L-glutamate trihydrate 82°, L-asparagine monohydrate 75°, DL-asparagine monohydrate 75°, K L-aspartate dihydrate 45° and 128°, Na L-aspartate monohydrate 135°, L-cysteine-HCl.-H2O 50°, L-Cysteine monohydrate 83°, DL-glutamic acid monohydrate 100° Na L-glutamate monohydrate 120°, Na DL-glutamate dihydrate 100° L-hystidine-HCl.H2O 144°, DL-hystidine-HCl.H2O 100° and 144°, L-isoleucine-HCl.H2O 80°, DL-alloisoleucine-HCl.H2O 50°, Cu L-isoleucine monohydrate 73°, L-lysine-HCl.H2O 50° and 115°, L-lysine L-glutamate dihydrate 85°,L-ornithine L-aspartate monohydrate 61°, L-proline monohydrate 50°, DL-proline monohydrate 63° and 135°, L-serine monohydrate 40° and 100°, L-valine-HCl.H2O 50°, and DL-valine-HCl.H2O 50°.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Magnetic properties of new layered compounds LaM1/3Sb5/3O6, M = Co, Ni, and Cu, with a honeycomb structure, published in 2021-12-31, which mentions a compound: 12069-69-1, mainly applied to lanthanum cobalt antimony oxide layered compound magnetic property, Computed Properties of CH2Cu2O5.

New compounds with the rosiaite type structure LaM1/3Sb5/3O6, M = Co, Ni, and Cu, were synthesized. The compounds belong to quasi-two-dimensional magnets, in which magnetic interactions occur in the layers with a honeycomb structure. It is shown that there is no long-range magnetic order in these compounds The temperature and field dependences of the magnetization in the compounds with M = Co, Ni indicate the presence of short-range anti-ferromagnetic and ferromagnetic exchange interactions. In the LaM1/3Sb5/3O6, M = Co, Ni, compounds, the interactions occur between Co2+ or Ni2+ ions of isolated magnetic clusters randomly distributed in the paramagnetic matrix in the chains of (M/Sb)O6 octahedrons. These clusters have sizes comparable with the crystal cell size. The LaCu1/3Sb5/3O6 compound is paramagnetic.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Safety of Basic copper carbonate. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Basic copper carbonate, is researched, Molecular CH2Cu2O5, CAS is 12069-69-1, about A catalytic approach of blending CO2-activating MOF struts for cycloaddition reaction in a helically interlaced Cu(II) amino acid imidazolate framework: DFT-corroborated investigation. Author is Kathalikkattil, Amal Cherian; Gu, Yunjang; Kurisingal, Jintu F.; Lee, Hankyul; Kim, Hyungjun; Choe, Youngson; Park, Dae-Won.

In CO2 transformation catalysis, the synthesis of cyclic carbonates using two classes of MOF catalysts viz., zeolitic imidazolate frameworks (ZIF) and MOFs with carboxylate-capped SBUs have gained large attention. Herein the authors propose the strategy of employing a unified multifunctional framework formed in the metal-centered assembly of imidazole and amino-carboxylates for CO2 transformation, such as propylene carbonate (PC) by the cycloaddition of CO2 with propylene oxide. The framework {[Cu(L-asp)(1,4-bix)0.5]·3H2O}n (CuAspBix) comprises of the amino acid building units, L-aspartic acid (L-Asp) and the flexible ligand, 1,4-bis(imidazole-1-ylmethyl)benzene [1,4-Bix]. The 1,4-Bix ligand with imidazole terminals renders elongated M-M distances and flexibility in comparison with pristine ZIF materials. The cumbersome synthesis procedure yielding poor phase purity of the bulk catalyst in solvothermal conditions were improved by a microwave-assisted synthesis, preserving the structural and physicochem. properties. Minimal energy input or room temperatures for the catalysis occurred via the synergistic participation of CuAspBix and quaternary ammonium bromide salt, demonstrated by d.-functional theory computational studies to propose mechanistic pathway of the reaction. Reaction conditions were optimized by altering the parameters. The heterogeneous catalyst was reused four times without a significant change in activity.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Reference of 11-Bromoundecanoic acid. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Antioxidant and Biological Activities of Novel Structured Monoacylglycerol Derivatives with Phenolic Acids. Author is Gandhi, Bhukya; Juliya, Johny; Dileep, Veeragoni; Uma Rajeswari, Batchu; Misra, Sunil; Kaki, Shiva Shanker.

Novel structured monoacylglycerol (MAG)-based phenolic lipids are synthesized from11-bromoundecanoic acid, phenolic acids, and solketal. Selected phenolic acids namely 4-hydroxy benzoic, vanillic, syringic, cinnamic, p-coumaric, sinapic, 4-fluorocinnamic, 4-hydroxyphenyl acetic acid, 3-(4-hydroxyphenyl) propanoic and dihydrocaffeic acids are employed for the synthesis of ten novel MAG-based phenolic lipids. The synthesized phenolic lipids are characterized by FT-IR, NMR, and mass spectra anal. All the compounds are evaluated for antioxidant, antimicrobial, and cytotoxic activities. MAG derivative 8g of sinapic acid exhibits excellent antioxidant activity in both DPPH assay and inhibition of lipid oxidation assay. MAG derivative 8f bearing p-coumaric acid shows good antimicrobial activity against both Gram-pos. and Gram-neg. bacterial strains with a min. inhibitory concentration (MIC) value of 6.25 μM mL-1. All the synthesized compounds are found to exhibit cytotoxicity against B16, DU145, and CHO cell lines, while sinapic and p-coumaric acid derivatives exhibit better activities compared to other derivatives

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 2834-05-1, is researched, SMILESS is O=C(O)CCCCCCCCCCBr, Molecular C11H21BrO2Journal, Article, Photochemical & Photobiological Sciences called Fluorescence detection of pyrene-stained Bacillus subtilis LPM1 rhizobacteria from colonized patterns of tomato roots, Author is Hernandez, Monica; Ortiz-Castro, Randy; Flores-Olivas, Alberto; Moggio, Ivana; Arias, Eduardo; Valenzuela-Soto, Jose Humberto, the main research direction is fluorescence detection pyrene Bacillus tomato root.Application In Synthesis of 11-Bromoundecanoic acid.

A series of water soluble 8-alcoxypyrene-1,3,6-trisulfonic sodium salts bearing different alcoxy lateral chains and functional end groups was synthesized and the mol. structure was corroborated by NMR spectroscopy. The photophys. properties in water analyzed by UV-Vis and static and dynamic fluorescence revealed that all of the pigments emit in the blue region at a maximal wavelength of 436 nm and with fluorescence lifetimes in the range of ns. Among them, sodium 8-((10-carboxydecyl) oxy) pyrene-1,3,6-trisulfonate M1 exhibits a high fluorescence quantum yield (ϕ = 80%) and a good interaction with B. subtilis LPM1 rhizobacteria; this has been demonstrated through in vitro staining assays. Tomato plants (Solanum lycopersicon cv.Micro-Tom) increased the release of root exudates, mainly malic and fumaric acids, after 12 h of treatment with benzothiadiazole (BTH) as a foliar elicitor. However, the chemotaxis anal. demonstrated that malic acid is the most powerful chemoattractant of the rhizobacteria Bacillus subtilis LPM1: in agar plates, a major growth (60 mm) was found for a concentration of 100 mM, while in capillary tubes, the earliest response was at 30 min with 3.3 x 108 CFU mL-1. The confocal microscopic anal. carried out on the tomato roots of the pyrene stained B. subtilis LPM1 revealed that this bacterium mainly colonizes the epidermal zones, i.e. the junctions to primary roots, lateral roots and root hairs, meaning that these root hair sections are the highest colonisable sites involved in the biosynthesis of exudates. This fluorescent pyrene marker M1 represents a valuable tool to evaluate B. subtilis-plant interactions in an easy and quick test in both in vitro and in vivo tomato crops.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

SDS of cas: 2834-05-1. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Cysteine Derivatized 99mTc-Labelled Fatty Acids as β-Oxidation Markers. Author is Tsotakos, Theodoros; Triantis, Charalambos; Kiritsis, Christos; Panagiotopoulou, Aggeliki; Psimadas, Dimitrios; Kyprianou, Patricia; Pelecanou, Maria; Papadopoulos, Minas; Pirmettis, Ioannis.

With the aim of developing 99mTc-labeled fatty acids intended for myocardial metabolism imaging we report herein the synthesis and characterization of two novel derivatives of undecanonoic and hexadecanonoic acid that have been functionalized at the ω-site by cysteine through the formation of a thioether bond (Cys-FA11 and Cys-FA16). Equimolar amounts of each ligand and the [NEt4]2[Re(CO)3Br3] precursor generated the resp. hexacoordinated neutral complexes in which the ligand coordinated to the metal through the SNO donor system of cysteine. The rhenium complexes were characterized by elemental anal., IR and NMR spectroscopies. The analogus technetium-99m complexes, 99mTc-Cys-FA11 and 99mTc-Cys-FA16 were prepared by incubation of the ligand with the precursor [99mTc(CO)3(H2O)3]+ (radiochem. yield ≥98%). Their structure was established by comparative HPLC techniques. In vivo studies in mice showed high initial heart uptake for both 99mTc complexes (7.4 ±plusmn; 0.53 and 7.07 &± 0.73 percentage of injected dose (%ID)/g at 1 min post) injection. Rapid clearance (0.60 ± 0.02%ID/g) was observed for 99mTc-Cys-FA11 while the clearance of the longer fatty acid 99mTc-Cys-FA16 was slower (2.31 ±0.09%ID/g at 15 min p.i.). Metabolite anal. study indicated that complexes were catabolized through the β-oxidation process.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about n-Type Redox-active Benzoylpyridinium-substituted Supramolecular Gel for an Organogel-based Rechargeable Device.Reference of 11-Bromoundecanoic acid.

A supramol. benzoylpyridinium-substituted cyclohexanediamine gelator with n-type redox properties was synthesized. The gelator formed a robust supramol. network consisting of cyclohexanediamine units. In the organogel, the stable redox reactions of the benzoylpyridinium moieties led to a reversible charge/discharge at -1.05 V (vs.Fc/Fc+). A supramol.-based rechargeable device was fabricated using TEMPO- and benzoylpyridinium-substituted gelators as the cathode and anode, resp., giving rise to a flexible, transparent, and even self-healable battery.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Basic copper carbonate( cas:12069-69-1 ) is researched.Related Products of 12069-69-1.Liu, Lei; Zhu, Menghe; Ma, Zhewen; Xu, Xiaodong; Mohesen Seraji, Seyed; Yu, Bin; Sun, Ziqi; Wang, Hao; Song, Pingan published the article 《A reactive copper-organophosphate-MXene heterostructure enabled antibacterial, self-extinguishing and mechanically robust polymer nanocomposites》 about this compound( cas:12069-69-1 ) in Chemical Engineering Journal (Amsterdam, Netherlands). Keywords: epoxy resin copper phosphate nanoparticle MXene nanocomposite antibacterial. Let’s learn more about this compound (cas:12069-69-1).

The ongoing Covid-19 pandemic has raised the need for urgent antibacterial requirements for many com. important polymers, e.g., Epoxy resins (EPs). Meanwhile, intrinsic flammability and poor impact toughness are two big obstacles that greatly impede the practical applications of EPs. Hence, it has been imperative but highly challenging to create advanced EPs combining satisfactory antibacterial, fire-retardant and mech. robust performances so far. Here, we report a reactive multi-functional heterostructure, copper-organophosphate-MXene (CuP-MXene) by rational design. Our results show that with 5.0% of CuP-MXene, in addition to achieving a high antibacterial efficiency above 99.9%, the resultant EP nanocomposite exhibits satisfactory flame retardancy (UL-94 V-0 rating, peak heat release rate decreased by 64.4%) and improved mech. properties (tensile strength, elastic modulus and impact strength increased by 31.7%, 38.9%, and 25.0%, resp.) relative to virgin EP, outperforming its previous counterparts. Such a desirable performance portfolio arises from multiple synergistic effects between CuP and MXene. This work provides a general strategy for the design of multi-functional nanoadditives and advanced functional polymers, and creates more opportunities for industrial applications of EP in the areas of coatings, medical devices and furniture.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI