Tag: M.W:200-300

Formula: CAgF3O3S. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Silver(I) trifluoromethanesulfonate, is researched, Molecular CAgF3O3S, CAS is 2923-28-6, about Silver(I) bis(phosphanylamino)naphthalene complexes: Synthesis, structures and density functional theory (DFT) calculations. Author is Potwana, Fezile S. W.; Pillay, Michael N.; Staples, Richard J.; Adeniyi, Adebayo A.; Singh, Parvesh; van Zyl, Werner E..

A series of five bis(phosphanylamino)naphthalene [C10H6(1,8-NHPPh2)2] (L1) and thio product, [C10H6(1,8-NHP(S)Ph2)2] (L2) containing silver(I) centers are reported. Treatment of silver(I) halides AgX (X = Cl, Br) with (L1) produced complexes of the type [Ag2(μ-X)2{C10H6(1,8-NHPPh2)2}2] where X = Cl (1), Br (2). Changing the M:L ratio to 2:1, the salt AgI produced a complex of the type [Ag4(μ3-I)2(μ2-I)2{C10H6(1,8-NHPPh2)2}2] (3). The reaction between AgOTf (OTf = triflate) and (L2) (molar ratio 1:2) produced the solvated cationic complex [Ag{C10H6(1,8-NHPPh2S)2}2]CF3SO3 (4), while changing from OTf to other anions proved to have no influence in forming cationic complexes but instead led to deprotonation of the ligand and produced a neutral complex [Ag2(μ-S)2{C10H6(1,8-NHPPh2S)}2] (5). The 31P NMR spectra of Ag(I) complexes (1-3) showed two doublets due to coupling of the 31P and 109Ag nuclei. MO and addnl. TD-DFT and spin-orbital coupling calculations were performed to provide more insight into the relevant bond orders and provided a possible explanation for solid-state non-luminescence.

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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

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: 2923-28-6, is researched, SMILESS is O=S(C(F)(F)F)([O-])=O.[Ag+], Molecular CAgF3O3SJournal, Article, Inorganic Chemistry called Physicochemical Factors That Influence the Deoxygenation of Oxyanions in Atomically Precise, Oxygen-Deficient Vanadium Oxide Assemblies, Author is Petel, Brittney E.; Matson, Ellen M., the main research direction is oxygen deficient polyoxovanadate electrochem oxygen atom transfer rate.Synthetic Route of CAgF3O3S.

Here, the authors report the findings related to the structural and electronic considerations that influence the rate of oxygen-atom transfer (OAT) to oxygen-deficient polyoxovanadate alkoxide (POV-alkoxide) clusters ([V6O6(OC2H5)12]n; n = 1-, 0, 1 + ). A comparison of the reaction times required for the reduction of nitrogen-containing oxyanions (NOx-, x = 2, 3) by the POV-ethoxide cluster in its anionic (1-V6O61-; VIIIVIV5), neutral (4-V6O60; VIIIVIV4VV), or cationic (6-V6O61+; VIIIVIV3VV2) charge state reveals that OAT is significantly influenced by three factors: (1) ion-pairing interactions between the POV-alkoxide and the neg. charged oxyanion; (2) oxidation states of remote vanadyl ions in the Lindqvist assembly; (3) the steric bulk surrounding the coordinatively unsaturated VIII ion. This work provides at.-level insight related to structure-function relations that govern the rate of OAT at metal oxide surfaces using polyoxometalate clusters as mol. models. Investigation of the properties that influence the oxygen-atom-transfer (OAT) rate from nitrogen-containing oxyanions to oxygen-deficient polyoxovanadate alkoxide clusters revealed that remote redox changes, ion-pairing interactions, and the steric bulk of surface ligands all effect OAT. Using these mol. models for bulk vanadium oxides, these studies reveal the physicochem. properties that may similarly impact the reactivity of metal oxide materials.

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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 2923-28-6, is researched, Molecular CAgF3O3S, about N→Ge Coordinated Germylenes as Ligands for Monomeric Cu Complexes, the main research direction is copper aryl amino germanium germylene complex preparation crystal structure; cyclic voltammetry copper aryl amino germanium germylene complex.Reference of Silver(I) trifluoromethanesulfonate.

Synthesis of monomeric Cu complexes stabilized by the N→Ge coordinated germylene L(Cl)Ge (L = 2-Et2NCH2-4,6-tBu2-C6H2) is reported. The reactions of the [L(Cl)Ge]2CuI (1) with AgX provided the complexes [L(Cl)Ge]2CuX (X = 2: X = OAc, 3: X = OTf) by selective substitution of the CuI bond. In contrast, the reaction of 1 with K[BEt3H] provided [L(H)Ge]2CuI (4), the product of selective substitution of the GeCl bonds. The 4 represents the first example of Cu complex stabilized by two organogermaniun hydrides [L(H)Ge].

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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Product Details of 2923-28-6. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Silver(I) trifluoromethanesulfonate, is researched, Molecular CAgF3O3S, CAS is 2923-28-6, about Square planar Au(III), Pt(II) and Cu(II) complexes with quinoline-substituted 2,2′:6′,2”-terpyridine ligands: From in vitro to in vivo biological properties. Author is Choroba, Katarzyna; Machura, Barbara; Szlapa-Kula, Agata; Malecki, Jan G.; Raposo, Luis; Roma-Rodrigues, Catarina; Cordeiro, Sandra; Baptista, Pedro V.; Fernandes, Alexandra R..

Cancer is the second leading cause of death worldwide. Cisplatin has challenged cancer treatment; however, resistance and side effects hamper its use. New agents displaying improved activity and more reduced side effects relative to cisplatin are needed. The authors present the synthesis, characterization and biol. activities of three complexes with quinoline-substituted 2,2′:6′,2”-terpyridine ligand: [Pt(4′-(2-quin)-terpy)Cl](SO3CF3) (1), [Au(4′-(2-quin)-terpy)Cl](PF6)2·CH3CN (2) and [Cu(4′-(2-quin)-terpy)Cl](PF6) (3). The three complexes displayed a high antiproliferative activity in ovarian carcinoma cell line (A2780) and even more noticeable in a colorectal carcinoma cell line (HCT116) following the order 3 > 2 > 1. The complexes IC50 are at least 20 x lower than the IC50 displayed by cisplatin (15.4μM) in HCT116 cell line while displaying at the same time, much reduced cytotoxicity in a normal dermal fibroblast culture. These cytotoxic activities seem to be correlated with the inclination angles of 2-quin unit to the central pyridine. All complexes can interact with calf-thymus DNA (CT-DNA) in vitro via different mechanisms, although intercalation seems to be the preferred mechanism at least for 2 and 3 at higher concentrations of DNA. Also, CD data seems to indicate that complex 3, more planar, induces a high destabilization of the DNA double helix (shift from B-form to Z-form). Higher the deviation from planar, the lower the cytotoxicity displayed by the complexes. Cellular uptake may be also responsible for the different cytotoxicity exhibited by complexes with 3 > 2 >1. Complex 2 seems to enter cells more passively while complex 1 and 3 might enter cells via energy-dependent and -independent mechanisms. Complexes 1-3 induce ROS are associated with the increased apoptosis and autophagy. Also, all complexes dissipate the mitochondrial membrane potential leading to an increased BAX/BCL-2 ratio that triggered apoptosis. Complexes 2 and 3 also exhibit an anti-angiogenic effect by significantly reduce the number of newly formed blood vessel in a CAM model with no toxicity in this in vivo model. The results seem to suggest that the increased cytotoxicity of complex 3 in HCT116 cells and its potential interest for further translation to pre-clin. mice xenografts might be associated with: (1) higher % of internalization of HCT116 cells via energy-dependent and -independent mechanisms; (2) ability to intercalate DNA and due to its planarity induced higher destabilization of DNA; (3) induce intracellular ROS that trigger apoptosis and autophagy; (4) low toxicity in an in vivo model of CAM; (5) potential anti-angiogenic effect.

Although many compounds look similar to this compound(2923-28-6)Product Details of 2923-28-6, numerous studies have shown that this compound(SMILES:O=S(C(F)(F)F)([O-])=O.[Ag+]), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Silver(I) trifluoromethanesulfonate( cas:2923-28-6 ) is researched.HPLC of Formula: 2923-28-6.Sinha, Soumalya; Tran, Giang N.; Na, Hanah; Mirica, Liviu M. published the article 《Electrocatalytic H2 evolution promoted by a bioinspired (N2S2)Ni(II) complex at low acid concentration》 about this compound( cas:2923-28-6 ) in ChemRxiv. Keywords: nickel electrocatalyst hydrogen evolution reaction. Let’s learn more about this compound (cas:2923-28-6).

The electrochem. hydrogen evolution reaction (HER) is of great interest to advance fuel cell technologies. Although heterogeneous HER electrocatalysts are desired for practical energy devices, the development of mol. electrocatalysts is important to elucidate the mechanism and improve the activity of state-of-the-art HER catalysts. Inspired by the enzymic HER process promoted by [NiFe] hydrogenases, we synthesized a bioinspired NiII electrocatalyst that produces H2 from CF3CO2H at low acid concentrations (<0.043 M) in MeCN. Under these conditions, the turnover frequency for HER achieved herein is ~200,000 s-1. We propose that our NiII electrocatalyst follows a novel HER mechanism by undergoing a 2e- transfer process in a single step, followed by stepwise H+ transfer at low acid concentrations, and the increase in acid concentration changes the HER mechanism toward a concerted H+/e- transfer. Finally, we evaluated the HER activity of our catalyst by benchmarking its kinetic and thermodn. parameters vs. other reported HER electrocatalysts. Although many compounds look similar to this compound(2923-28-6)HPLC of Formula: 2923-28-6, numerous studies have shown that this compound(SMILES:O=S(C(F)(F)F)([O-])=O.[Ag+]), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Silver(I) trifluoromethanesulfonate( cas:2923-28-6 ) is researched.SDS of cas: 2923-28-6.Ding, Yi; Sarkar, Samir Kumar; Nazish, Mohd; Muhammed, Shahila; Lueert, Daniel; Ruth, Paul Niklas; Legendre, Christina M.; Herbst-Irmer, Regine; Parameswaran, Pattiyil; Stalke, Dietmar; Yang, Zhi; Roesky, Herbert W. published the article 《Stabilization of Reactive Nitrene by Silylenes without Using a Reducing Metal》 about this compound( cas:2923-28-6 ) in Angewandte Chemie, International Edition. Keywords: bissilylene reaction silyl azide silver triflate; crystal structure nitrene silylene stabilized silaimine ring; mol structure nitrene silylene stabilized silaimine ring; amidinato ligands; hyperconjugative interactions; molecular orbitals; nitrene; silylenes. Let’s learn more about this compound (cas:2923-28-6).

Herein, the authors report the stabilization of nitrene reagents as the source of a N atom to synthesize N-incorporated R1LSi-N←SiLR2 (1; L = PhC(NtBu)2; R1 = NTMS2, R2 = NTMS). Compound 1 was synthesized by reacting bissilylene LSi(I)-Si(I)L with 3.1 equiv of Me3SiN3 at low temperature to afford a triene-like structural framework. Whereas the reaction of the LSi(I)-SiIL with 2.1 equiv of Me3SiN3 at room temperature produced silaimine 2 with a central four-membered Si2N2 ring which is accompanied by a silylene LSi and a cleaved silylene fragment. 1 Further reacts with AgOTf at room temperature to yield compound 3 which shows coordination of nitrene to Ag with the triflate salt. The compounds 1 and 2 were fully characterized by NMR, mass spectrometry, and x-ray crystallog. anal. The quantum mech. calculations reveal that compounds 1 and 2 have dicoordinated monovalent N atoms having two active lone pairs of electrons. These lone pairs are stabilized by hyperconjugative interactions.

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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

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 Excited-state engineering of oligothiophenes via phosphorus chemistry towards strong fluorescent materials, published in 2021, which mentions a compound: 2923-28-6, mainly applied to phosphorus chem excited state engineering oligothiophene fluorescent material, SDS of cas: 2923-28-6.

Due to efficient intersystem crossing (ISC), combined with efficient nonradiative processes of the triplet excited state, oligothiophenes generally exhibit very weak luminescence. P-bridged terthiophenes (P-terThs) and P-bridged bithiophenes (P-biThs) were synthesized. The diverse and well-defined P-chem. was applied to fine tune the photophys. properties of these materials. The asym. electronic coupling between the P-center and terThs suppressed the electronic interactions of 2 terTh and biTh moieties in the ground state S0. Particularly, P-terThs and P-biThs having a pos. charged P(+)-center induce pronounced asym. electronic environments on the 2 terThs and 2 biThs, resp., which allows relaxation from the initial excited state via symmetry breaking charge transfer (SBCT) to give the charge separated state SSBCT. P-terThs and P-biThs having a pos. charged P(+)-center exhibit stronger SBCT than others, which may result in a weaker ISC of oligothiophenes, and consequently lead to the luminescence quantum yields (PLQYs) being ≤71% and 39%, resp. The current study uncovered detailed insights on the effects of P chem. on the SBCT of oligothiophenes and their resulting effects on the photophys. properties of P-bridged oligothiophenes, which were not previously addressed in oligothiophenes.

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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Application In Synthesis of Silver(I) trifluoromethanesulfonate. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Silver(I) trifluoromethanesulfonate, is researched, Molecular CAgF3O3S, CAS is 2923-28-6, about Catalytic reduction of nitrate by an oxidorhenium (V) complex. Author is Schachner, J. A.; Wiedemaier, F.; Zwettler, N.; Peschel, L. M.; Boese, A. D.; Belaj, F.; Moesch-Zanetti, N. C..

The previously published oxidorhenium(V) complex [ReOCl(L1)2] (2), equipped with the bidentate phenol-dimethyloxazoline ligand HL1 (2-(4,4-dimethyl-4,5-dihydro-1,3-oxazol-2-yl)-phenol), shows catalytic activity for the reduction of nitrate to nitrite under mild, ambient and aqueous conditions. The reaction operates under an oxygen atom transfer (OAT) mechanism, using di-Me sulfide SMe2 (DMS) as oxygen acceptor. Experiments with catalytic amounts of 2 and labeled 15NO-3 proved the full reduction of 15NO-3 to 15NO-2 by 15N NMR spectroscopy. For the second reduction step of nitrite NO-2, we have evidence for a single electron reduction to yield paramagnetic NO, as from one nitrate reduction experiment the paramagnetic cis-dioxidorhenium(VI) complex [Re(O)2(L1)2] (3) could be isolated and characterized by single-crystal X-ray diffraction anal. Such a single electron reduction of nitrite NO-2 would yield NO and complex 3 as the oxidation product. In a stoichiometric experiment of 2, 15NO-3 and DMS, nitrous oxide 15N2O could be detected as the only 15N containing product by 15N NMR spectroscopy, proving that further reduction beyond NO is possible with pre-catalyst 2. The rhenium species responsible for the reduction to N2O is currently unknown. Most likely, N2O is formed via an intermediate rhenium nitrosyl complex. Exptl. data was gathered by 1H and 15N NMR, IR- and UV-Vis spectroscopy, HR-ESI mass spectrometry, X-ray crystallog., and supported by theor. computations (DFT).

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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Silver(I) trifluoromethanesulfonate(SMILESS: O=S(C(F)(F)F)([O-])=O.[Ag+],cas:2923-28-6) is researched.Recommanded Product: 36620-11-8. The article 《Polyglyoxylamides with a pH-Mediated Solubility and Depolymerization Switch》 in relation to this compound, is published in Macromolecules (Washington, DC, United States). Let’s take a look at the latest research on this compound (cas:2923-28-6).

Self-immolative polymers (SIPs) are characterized by their ability to depolymerize in response to the cleavage of a single end-cap or backbone moiety, making them attractive for numerous applications including sensors, transient plastics, and delivery vehicles. For many applications, it would be desirable to have an SIP capable of depolymerizing selectively under mildly acidic aqueous conditions. However, the poor solubility of most SIPs in water, accompanied by the competing effects of end-cap cleavage and depolymerization mechanisms, has made this a challenge. Here, we describe the development of polyglyoxylamides (PGAms) with pendent amino groups to achieve solubility switching at mildly acidic pH, which allows access of water to the end-cap and consequently depolymerization PGAms with varying amino groups were synthesized from trityl end-capped poly(Et glyoxylate) (PEtG). While water-insoluble PEtG underwent no detectable depolymerization between pH 5 and 7.4 and water-soluble PGAms underwent rapid depolymerization regardless of pH in this range, a PGAm with N,N-diisopropylaminoethyl (DPAE) pendent groups underwent more rapid depolymerization at pH 5-6 compared to pH 7.4. PGAms were also incorporated into block copolymers with poly(ethylene glycol) (PEG). Nanoassemblies formed from PEG-PGAm(DPAE), swelled, disassembled, and depolymerized as the pH was lowered from 8 to 5. Copolymers lacking a solubility switch did not undergo pH-dependent disassembly or depolymerization Overall, this work provides a new platform approach for the development of pH-sensitive SIP materials for a wide range of applications.

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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

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 Triazole-Based Half-Sandwich Ruthenium(II) Compounds: From In Vitro Antiproliferative Potential to In Vivo Toxicity Evaluation, published in 2021-06-07, which mentions a compound: 2923-28-6, mainly applied to triazole half sandwich ruthenium compound antiproliferative toxicity, HPLC of Formula: 2923-28-6.

A new series of half-sandwich ruthenium(II) compounds [(η6-arene)Ru(L)Cl][CF3SO3] bearing 1,2,3-triazole ligands (arene = p-cymene, L = L1 (1); arene = p-cymene, L = L2 (2); arene = benzene, L = L1 (3); arene = benzene, L2 (4); L1 = 2-[1-(p-tolyl)-1H-1,2,3-triazol-4-yl]pyridine and L2 = 1,1′-di-p-tolyl-1H,1′H-4,4′-bi(1,2,3-triazole)) have been synthesized and fully characterized by 1H and 13C NMR and IR spectroscopy, mass spectrometry, and elemental anal. The mol. structures of 1, 2, and 4 have been determined by single-crystal X-ray diffraction. The cytotoxic activity of 1-4 was evaluated using the MTS assay against human tumor cells, namely ovarian carcinoma (A2780), colorectal carcinoma (HCT116), and colorectal carcinoma resistant to doxorubicin (HCT116dox), and against normal primary fibroblasts. Whereas compounds 2 and 4 showed no cytotoxic activity toward tumor cell lines, compounds 1 and 3 were active in A2780, while showing no antiproliferative effect in human normal dermal fibroblasts at the IC50 concentrations of the A2780 cell line. Exposure of ovarian carcinoma cells to IC50 concentrations of compound 1 or 3 led to an accumulation of reactive oxygen species and an increase of apoptotic and autophagic cells. While compound 3 displayed low levels of angiogenesis induction, compound 1 showed an ability to induce cell cycle delay and to interfere with cell migration. When the in vivo toxicity studies using zebrafish and chicken embryos are considered, compounds 1 and 3, which were not lethal, are promising candidates as anticancer agents against ovarian cancer due to their good cytotoxic activity in tumor cells and their low toxicity both in vitro and in vivo.

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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem