Tag: M.W=500-600

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: Iron(III) trifluoromethanesulfonate, is researched, Molecular C3F9FeO9S3, CAS is 63295-48-7, about Weak Sn···I interactions in the crystal structures of the iodostannates [SnI4]2- and [SnI3]-.Computed Properties of C3F9FeO9S3.

Iodostannate complexes can be crystallized from SnI2 solutions in polar organic solvents by precipitation with large counterions. Thereby isolated anions as well as 1D, 2D, or 3D polymeric anionic substructures are established, in which SnI3- and SnI42- groups are linked by weak Sn···I interactions. Examples are the iodostannates [Me3N(CH2)2NMe3][SnI4] (I), (Ph4P)2[Sn2I6] (II), [Me3N(CH2)2NMe3][Sn2I6] (III), [Fe(DMF)6][SnI3]2 (IV), and (Pr4N)[SnI3] (V), which were characterized by single crystal x-ray diffraction. Compound I: a = 671.6(2), b = 1373.3(4), c = 2046.6(9) pm, V = 1887.7(11) × 106 pm3, space group Pbcm; II: a = 1168.05(6), b = 717.06(4), c = 3093.40(10) pm, β = 101.202(4)°, V = 2541.6(2) × 106 pm3, space group P21/n; III: a = 695.58(4), b = 1748.30(8), c = 987.12(5) pm, β = 92.789(6)°, V = 1199.00(11) × 106 pm3, space group P21/c; IV: a = 884.99(8), b = 1019.04(8), c = 1218.20(8) pm, α = 92.715(7), β = 105.826(7), γ = 98.241(7), V = 1041.7(1) × 106 pm3, space group P1̅; V: a = 912.6(2), b = 1205.1(2), c = 1885.4(3) pm, V = 2073.5(7) × 106 pm3, space group P212121.

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Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Iron(III) trifluoromethanesulfonate(SMILESS: O=S(C(F)(F)F)([O-])=O.O=S(C(F)(F)F)([O-])=O.O=S(C(F)(F)F)([O-])=O.[Fe+3],cas:63295-48-7) is researched.Synthetic Route of C10H7F2N3O. The article 《The First 1,3,4-Oxadiazole Based Dinuclear Iron(II) Complexes Showing Spin Crossover Behavior with Hysteresis》 in relation to this compound, is published in European Journal of Inorganic Chemistry. Let’s take a look at the latest research on this compound (cas:63295-48-7).

Three new dinuclear complexes [FeII2(μ-L)2]X4 (L is the bis-tridentate ligand 2,5-bis{[(2-pyridylmethyl)amino]methyl}-1,3,4-oxadiazole and X = ClO4-, BF4- and CF3SO3-) were synthesized and fully characterized by single-crystal x-ray diffraction, Mossbauer spectroscopy and magnetic susceptibility measurements. Upon cooling, a trapped [high-spin-low-spin] state of the iron(II) centers was detected. Depending on the counterion, a pronounced thermal hysteresis is found. In one case, it was possible to observe a space group change that accompanies the spin transition. This is the first system showing spin crossover based on an oxadiazole ligand.

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Reference:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called A Protocol for Metal Triflate Catalyzed Direct Glycosylation with GalNAc 1-OPiv Donors, published in 2014-11-21, which mentions a compound: 63295-48-7, Name is Iron(III) trifluoromethanesulfonate, Molecular C3F9FeO9S3, Recommanded Product: Iron(III) trifluoromethanesulfonate.

Herein we report on the development of novel glycosylation methodol. for the concise synthesis of naturally occurring glycoconjugate motifs containing N-acetylgalactosamine (GalNAc) from the cheaper and com. available N-acetylglucosamine (GlcNAc). The stereoselective glycosylation proceed with catalytic amounts of a promoter and without the need for N-protection other than the biol. relevant N-acetyl group. Among the catalysts explored, both Bi(OTf)3 and Fe(OTf)3 were found to be highly active Lewis acids for this reaction. It was also found that other less reactive metal triflates such as those of Cu(II) and Yb(III) can be beneficial in glycosylation reactions on more demanding glycosyl acceptors. We have furthermore demonstrated that it is possible to control the anomeric stereoselectivity in the glycosylation via post-glycosylation in situ anomerization to obtain good yields of α-galactosides. The present protocol was used to prepare important naturally occurring carbohydrate motifs, including a trisaccharide fragment of the naturally occurring marine sponge clarhamnoside.

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Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Reference of Iron(III) trifluoromethanesulfonate. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Iron(III) trifluoromethanesulfonate, is researched, Molecular C3F9FeO9S3, CAS is 63295-48-7, about Synthesis of conductive elastomeric foams by an in situ polymerization of pyrrole using supercritical carbon dioxide and ethanol cosolvents. Author is Shenoy, S. L.; Kaya, I.; Erkey, C.; Weiss, R. A..

Elec. conductive polyurethane (PU) foams were prepared by first impregnating a PU foam with ferric trifluoromethane sulfonate (ferric triflate) using supercritical carbon dioxide (scCO2) containing 0.2 – 1.3 volume % ethanol as a cosolvent, and then exposing the foam to pyrrole vapor. Polypyrrole (PPy) was formed in situ by an chem. oxidative polymerization The conductivity of the composite foams ranged from 10-7 to 10-2 S/cm, depending on the amount of ethanol and impregnation time used. The amount of PPy produced depended on the amount of oxidant absorbed by the foam. For low ethanol concentrations and/or short impregnation time, the PPy produced was concentrated at or near the surfaces of the foam sample. The dispersion of the PPy in the foam was improved by increasing the amount of ethanol and the impregnation time. Ferric trifluoroacetate was more soluble in the scCO2/ethanol solutions, but produced foams with much lower conductivity than did ferric triflate.

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Reference:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Iron(III) trifluoromethanesulfonate(SMILESS: O=S(C(F)(F)F)([O-])=O.O=S(C(F)(F)F)([O-])=O.O=S(C(F)(F)F)([O-])=O.[Fe+3],cas:63295-48-7) is researched.Recommanded Product: 175136-62-6. The article 《Synthesis of conductive polypyrrole/polyurethane foams via a supercritical fluid process》 in relation to this compound, is published in Polymer Preprints (American Chemical Society, Division of Polymer Chemistry). Let’s take a look at the latest research on this compound (cas:63295-48-7).

Pyrrole was polymerized in situ within polyurethane foam, in supercritical CO2 containing ferric triflate [Fe(CF3SO3)3] as oxidation agent, to obtain elec. conductive polypyrrole/polyurethane elastomer foams. The polyurethane foams were swelled with ferric triflate [formed by reaction of FeCl3 with NaOH then of the product with CF3SO3H] in supercritical CO2 solution to impregnate the oxidant, then exposed to pyrrole vapor. The amount of polypyrrole produced in the foam was controlled by the amount of FeCl3 precursor. The kinetics of mass transfer of oxidant in the foam and the conductivity of composite foams were studied. The supercritical CO2 is a viable alternative to organic solvents commonly used in in-situ polymerization to produce conducting polymer composites.

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Reference:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Iron(III) trifluoromethanesulfonate, is researched, Molecular C3F9FeO9S3, CAS is 63295-48-7, about New chemically prepared conducting pyrrole blacks, the main research direction is polypyrrole elec conductivity; ferric salt doping polypyrrole.Category: piperidines.

A series of elec. conducting pyrrole black polymers was prepared by chem. oxidation of pyrrole with a variety of ferric salts. The synthesis and properties of these materials are described and compared with electrochem.-prepared analogs. Pyrrole blacks with strong acid anion dopants exhibited the highest conductivities, <62 Ω cm-1 for the triflate-doped polymer. The adjustability and ease of synthesis of the ferric-derived polypyrroles render these particularly promising for large-scale processing of conducting polymers. As far as I know, this compound(63295-48-7)Category: piperidines can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.

Reference:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Iron(III) trifluoromethanesulfonate( cas:63295-48-7 ) is researched.Safety of Iron(III) trifluoromethanesulfonate.Chen, Shangzhi; Kang, Evan S. H.; Chaharsoughi, Mina S.; Stanishev, Vallery; Kuhne, Philipp; Sun, Hengda; Darakchieva, Vanya; Jonsson, Magnus P. published the article 《Switchable organic plasmonics with conductive polymer nanoantennas》 about this compound( cas:63295-48-7 ) in arXiv.org, e-Print Archive, Physics. Keywords: switchable organic plasmonics conductive polymer nanoantenna. Let’s learn more about this compound (cas:63295-48-7).

Metal nanostructures are key elements in nanooptics owing to their strong resonant interaction with light through local plasmonic charge oscillations. Their ability to shape light at the nanoscale have made them important across a multitude of areas, including biosensing, energy conversion and ultrathin flat metaoptics. Yet another dimension of avenues is foreseen for dynamic nanoantennas, ranging from tuneable metalenses for miniaturized medical devices to adaptable windows that control radiation flows in and out of buildings. However, enabling nano-optical antennas to be dynamically controllable remains highly challenging and particularly so for traditional metals with fixed permittivity. Here we present state-of-the-art conductive polymers as a new class of organic plasmonic materials for redox-tuneable nano-optics. Through experiments and simulations, we show that nanodisks of highly conductive polymers can provide clear optical extinction peaks via excitation of dipolar localised surface plasmon resonances. Resonance frequencies red shift with increasing nanodisk aspect ratio, in agreement with anal. calculations based on dipolar polarizability theory. We furthermore demonstrate complete switching of the optical response of the organic nanoantennas by chem. tuning of the polymer’s redox state, which effectively modulates the material permittivity between plasmonic and non- plasmonic regimes. Our results thereby show that conductive polymer nanostructures can act as redox-tuneable plasmonic nanoantennas, based on bipolaronic charge carriers rather than electrons as in conventional metals. Future directions may investigate different polymers and geometries to further widen the plasmonic spectral range (here around 0.8 to 3.6 μm) as well as different ways of tuning.

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Reference:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Application of 63295-48-7. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Iron(III) trifluoromethanesulfonate, is researched, Molecular C3F9FeO9S3, CAS is 63295-48-7, about One-step Pd/C and Eu(OTf)3 catalyzed hydrodeoxygenation of branched C11 and C12 biomass-based furans to the corresponding alkanes. Author is Keskivali, Juha; Wrigstedt, Pauli; Lagerblom, Kalle; Repo, Timo.

Solvent-free NaOH catalyzed aldol condensation of biomass-derived 5-hydroxymethyl furfural (HMF) and furfural with Me iso-Bu ketone (MIBK) was studied, producing branched C11 and C12 furan compounds in high yields of up to 96%. Through use of a Pd/C and Eu(OTf)3 catalytic system, the condensation products of the bio-based starting materials were further hydrodeoxygenated (HDO) in one-step to biofuel compatible branched alkanes 2-methylundecane (3) and 2-methyldecane (4) in excellent yields of 90% and 98%, resp. In the one-step HDO developed herein, the variation of solvent had a significant effect on the reaction route and degree of conversion of furans to alkanes in the HDO process. Very high overall yields of alkanes 3 (86%) and 4 (94%) were obtained starting from the biomass-based HMF and furfural.

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Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Product Details of 63295-48-7. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Iron(III) trifluoromethanesulfonate, is researched, Molecular C3F9FeO9S3, CAS is 63295-48-7, about Electrical and Mechanical Properties of Intrinsically Flexible and Stretchable PEDOT Polymers for Thermotherapy. Author is Schultheiss, Amelie; Revaux, Amelie; Carella, Alexandre; Brinkmann, Martin; Zeng, Huiyan; Demadrille, Renaud; Simonato, Jean-Pierre.

For wearable applications such as electronic skin and biosensors, stretchable conductors are required (~30% strain to follow the skin extension). Owing to its high conductivity, good flexibility, low cost, and ease of processing, poly(3,4-ethylenedioxythiophene) (PEDOT) appears as a promising candidate. However, destructive cracks come out above 10% strain in the case of PEDOT:PSS, the most common form of PEDOT. Different strategies have already been investigated to solve this problem, including the design of specific structures or the addition of plasticizers. This article presents a different approach to obtain highly conductive and stretchable PEDOT materials based on doping with small counteranions. We indeed demonstrate the intrinsic stretchability (up to 30% strain) of thin films (35 nm) of PEDOT-based materials with small counterions. Both thin-PEDOT:OTf (triflate counter-ion) and thin-PEDOT:Sulf (sulfate counter-ion) films remain structurally resilient up to 25-30% strain, and their elec. conductivity remains remarkably stable over more than 100 cycles. Under limited strain (<30%), polarized UV-vis-NIR measurements (parallel and perpendicular to the stretching direction) show that the conductivity of the material is improved by chain alignment in the stretching direction. As a proof of concept, a thermotherapy patch is presented. It shows a fine temperature control (stability around 40°C at 9 V bias) and a uniform heating across the surface. In addition to the literature in the link below, there is a lot of literature about this compound(Iron(III) trifluoromethanesulfonate)Product Details of 63295-48-7, illustrating the importance and wide applicability of this compound(63295-48-7).

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Piperidine – Wikipedia,
Piperidine | C5H11N – 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: 63295-48-7, is researched, SMILESS is O=S(C(F)(F)F)([O-])=O.O=S(C(F)(F)F)([O-])=O.O=S(C(F)(F)F)([O-])=O.[Fe+3], Molecular C3F9FeO9S3Journal, Energy & Environmental Science called Mono- and tri-ester hydrogenolysis using tandem catalysis. Scope and mechanism, Author is Lohr, Tracy L.; Li, Zhi; Assary, Rajeev S.; Curtiss, Larry A.; Marks, Tobin J., the main research direction is mono tri ester hydrogenolysis tandem catalyst biodiesel.Application In Synthesis of Iron(III) trifluoromethanesulfonate.

The scope and mechanism of thermodynamically leveraged ester RC(O)O-R’ bond hydrogenolysis by tandem metal triflate + supported Pd catalysts are investigated both exptl. and theor. by DFT and energy span anal. This catalytic system has a broad scope, with relative cleavage rates scaling as, tertiary > secondary > primary ester at 1 bar H2, yielding alkanes and carboxylic acids with high conversion and selectivity. Benzylic and allylic esters display the highest activity. The rate law is ν = k[M(OTf)n]1[ester]0[H2]0 with an H/D kinetic isotope effect = 6.5 ± 0.5, implying turnover-limiting C-H scission following C-O cleavage, in agreement with theory. Intermediate alkene products are then rapidly hydrogenated. Applying this approach with the very active Hf(OTf)4 catalyst to bio-derived triglycerides affords near-quant. yields of C3 hydrocarbons rather than glycerol. From model substrates, it is found that RC(O)O-R’ cleavage rates are very sensitive to steric congestion and metal triflate identity. For triglycerides, primary/external glyceryl CH2-O cleavage predominates over secondary/internal CH-O cleavage, with the latter favored by less acidic or smaller ionic radius metal triflates, raising the diester selectivity to as high as 48% with Ce(OTf)3.

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Reference:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem