Author: Jessica.F

Spange, Stefan published the artcileReappraisal of Empirical Solvent Polarity Scales for Organic Solvents, Product Details of C2H5NO, the main research area is organic solvent empirical polarity.

Correlations of Reichardt ‘s ET(30), the Catalan SdP (solvent dipolarity), SP (solvent polarizability), SA (solvent acidity), SB (solvent basicity), Kamlet-Taft π* (dipolarity/polarizability), α (hydrogen bond donating ability) and β (hydrogen bond accepting ability) polarity parameters with the molar concentration of 161 pure organic solvents are presented. Mostly, linear relationships of the polarity parameter as a function of molar concentration are obtained as long as each individual solvent class is considered sep. A phys. different interpretation of the ET(30), Kamlet-Taft π* and α as well as Catalan SA and SB parameters has been proposed. Furthermore, the Hildebrand solubility parameter in combination with the diffraction index is used for the correlation anal. with the above-mentioned solvent parameters. It can be concluded that empirical polarity parameters derived from solvatochromic UV/Vis measurements are inherently a function of the mol. structure of the probe.

Chemistry: Methods published new progress about Acidity. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Product Details of C2H5NO.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Anggo Krisbiantoro, Philip published the artcileCatalytic glycolysis of polyethylene terephthalate (PET) by solvent-free mechanochemically synthesized MFe2O4 (M = Co, Ni, Cu and Zn) spinel, Name: N-Methylformamide, the main research area is catalytic glycolysis polyethylene terephthalate spinel catalyst.

In the present study, the solvent-free mechanochem. synthesized MFe2O4 (M = Co, Ni, Cu, and Zn) spinel was used as a catalyst for PET glycolysis. All catalysts were active for PET glycolysis to produce bis(2-hydroxyethyl) terephthalate (BHET) with the order of PET conversion of ZnFe2O4 > CuFe2O4 > CoFe2O4 > NiFe2O4. The catalytic activity was correlated with the Lewis acid strength of the M2+ in MFe2O4, i.e., a catalyst with strong Lewis acid exhibited high catalytic activity. Although CoFe2O4 was the second-best catalyst among the four in terms of yield of BHET, it possessed the highest saturation magnetization, which is a great advantage for magnetic separation of the catalyst. The reaction over CoFe2O4 exhibited apparent activation energy (Ea) of 188 kJ mol-1, and it was reusable for at least five times. Moreover, a simulation using Aspen Plus software showed that scale-up is highly feasible.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Acidity. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Name: N-Methylformamide.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Schaad, David R. published the artcileActivation of amide nitrogen-hydrogen bonds by iron and ruthenium phosphine complexes, Synthetic Route of 359-38-6, the main research area is amide activation iron ruthenium complex; nitrogen hydrogen bond activation amide; hydride ruthenium iron activation amide.

The complexes cis-RuHR(dmpe)2 (R = naphthyl, dmpe = Me2PCH2CH2PMe2), cis-FeH2(dmpe)2, and FeH(C6H4PPhCH2CH2PPh2)(DPPE) readily activate the N-H bonds of amides, yielding trans-MH(NHCOR1)L2 (R1 = COCF3, COC6F5, COMe, etc., L = diphosphine) products. The formation and stability of the product depend on the natures of both the metal complex and the amide employed. For the more acidic amides (e.g., trifluoroacetamide and triflamide), product formation appears to proceed via protonation of the metal complex by the amide. In the presence of excess amide, trans-RuH(NHCOR)(dmpe)2 undergoes rapid exchange of the amido ligand but not the hydride ligand.

Journal of the American Chemical Society published new progress about H-N bond. 359-38-6 belongs to class amides-buliding-blocks, name is 2,2-Difluoroacetamide, and the molecular formula is C2H3F2NO, Synthetic Route of 359-38-6.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Zhou, Li published the artcileSelective Synthesis of Single-Handed Helical Polymers from Achiral Monomer and a Mechanism Study on Helix-Sense-Selective Polymerization, Recommanded Product: (S)-2-Methylpropane-2-sulfinamide, the main research area is helicity conformation single handed polyphenyl isocyanide preparation; chiral polymers; helix; helix-sense-selective polymerization; living polymerization; polymers.

Inspired by the exquisite helixes in nature, fabrication of helical materials with controlled handedness has attracted considerable attention. Herein, the authors report on precise synthesis of single left- and right-handed helical polyisocyanides through living polymerization of achiral monomers using chiral palladium catalysts under helix-sense-selective manner. Mechanism study revealed that the yielded helixes with opposite handedness showed different activity of the living chain end. The helix with unfavored handedness was self-terminated, while the one with favored handedness showed high activity and could undergo chain propagation to form a high mol. weight polymer with maintained single-handed helicity.

Angewandte Chemie, International Edition published new progress about Helicity. 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Recommanded Product: (S)-2-Methylpropane-2-sulfinamide.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Wu, Tsung-Tse published the artcileMeasurements of the dissociation conditions for methane hydrates with various additives of 1,2-epoxybutane, 2,3-dihydrofuran, N-methylformamide, 4-methylmorpholine, or 1-(2-furyl)methylamine, HPLC of Formula: 123-39-7, the main research area is methane hydrate sodium chloride phase equilibrium.

The exptl. phase equilibrium measurements for the dissociation conditions of methane hydrates in the presence of five additives are reported in this study. The isochoric method was employed to measure the three-phase (hydrate + liquid water + vapor, H-Lw-V) dissociation conditions (the three-phase equilibrium temperatures and pressures) under various concentrations of five additive compounds These additives include 1,2-epoxybutane that showed a promotion effect up to 2.6 K at a fixed pressure for the formation of methane hydrate. Other additives of 2,3-dihydrofuran N-methylformamide, 4-methylmorpholine and 1-(2-furyl)methylamine, however, all showed the inhibition effect from 1.3 up to 9 K. The possible structures of methane hydrates with these additives were estimated from the Clausius-Clapeyron equation by using the measured equilibrium temperature and pressure data. It is shown that with the additive of 1,2-epoxybutane, a sII hydrate structure might cause the promotion effect. The other four additives with inhibition effect all showed the possible sI structure. This study reports novel phase equilibrium data and verifies a useful screening method to select the available additives for natural gas production or transportation.

Fluid Phase Equilibria published new progress about Enthalpy. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, HPLC of Formula: 123-39-7.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Suganthi R., Josephine Usha published the artcileThe growth and characterization techniques of organometallic nonlinear optical crystal – Manganese mercury thiocyanate – Bis (N -methyl formamide), Synthetic Route of 123-39-7, the main research area is manganese mercury thiocyanate methyl formamide optical crystal growth.

Manganese mercury thiocyanate – bis (N -Me formamide) has been prepared to be a novel organometallic nonlinear optical crystal. The cell parameters of the grown crystals were obtained by single-crystal XRD anal. The second harmonic generation and optical transmittance of the grown crystal are studied by Kurtz and Perry powder technique and UV spectroscopic absorbance spectrum. The thermal anal. reveals that MMTN crystal possesses good physicochem. stability. The dielec. responses of the grown crystals are studied as a function of the temperature and the results are discussed.

Materials Today: Proceedings published new progress about Crystals. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Synthetic Route of 123-39-7.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Lin, Li-Dan published the artcileDevelopment of a new Lindqvist-like Fe6 cluster secondary building unit for MOFs, Name: N-Methylformamide, the main research area is hydroxymethyl pyridinylpropanediol iron Lindqvist cluster preparation crystal mol structure.

This work demonstrates a new Lindqvist-like [FeIII6(μ6-O)L4Cl6]2- (Fe6, L = 2-(hydroxymethyl)-2-(pyridin-4-yl)-1,3-propanediol) cluster for the construction of a novel class of Fe-cluster organic frameworks. The novel Fe6 cluster can be used to build not only a homometallic MOF, but also a heterometallic MOF by introducing copper halide clusters to the reaction system. In particular, the heterometallic MOF achieved a skillful combination of Fe6 SBU and cuprous-halide clusters for the first time. Our synthesis strategy opens up an effective avenue to novel Fe-cluster-based MOF materials.

Chemical Communications (Cambridge, United Kingdom) published new progress about Clusters. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Name: N-Methylformamide.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Otlyotov, Arseniy A. published the artcileConformational energies of microsolvated Na+ clusters with protic and aprotic solvents from GFNn-xTB methods, Synthetic Route of 123-39-7, the main research area is sodium methanol water cluster conformational potential correlation function; cluster-continuum theory; conformational analysis; microsolvation; semiempirical methods; sodium cation clusters.

Performance of contemporary tight-binding semiempirical GFNn-xTB methods for the conformational energies of singly charged sodium clusters Na+(S)n (n = 4-8) with 3 protic and 8 aprotic solvents is examined against the reference RI-MP2/CBS method. The median Pearson correlation coefficients of ρ = 0.84 (GFN2-xTB) and ρ = 0.82 (GFN1-xTB) do not give the clear preference to any tested approach. GFN1-xTB method demonstrates more stable performance than its GFN2-xTB successor with the average mean absolute errors (MAEs)/mean signed errors (MSEs) of 1.2/0.2 and 2.3/1.6 kcal mol-1, resp. Conformational energies produced by the computationally efficient DFT functional PBE and double-ζ basis set complemented with -D3(BJ) dispersion correction are suitable for the preliminary sampling (median ρ = 0.93), but should be used with a caution for the calculations of the average ensemble properties (MAE/MSE = 1.7/1.1 kcal mol-1). Higher-ranking PBE0-D3(BJ) and ωB97M-V with triple-ζ basis sets yield significantly lower MAEs/MSEs of 0.55/0.20 and 0.51/0.23 kcal mol-1, resp.

Journal of Computational Chemistry published new progress about Clusters. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Synthetic Route of 123-39-7.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Waghorne, W. Earle published the artcileA Study of Kamlet-Taft β and π* Scales of Solvent Basicity and Polarity/Polarizability Using Computationally Derived Molecular Properties, Product Details of C2H5NO, the main research area is solvent basicity polarity polarizability molicualr property.

The Kamlet and Taft solvent basicity parameter, β, and solvent polarity/polarizability parameter, π*, were analyzed in terms of properties of the solvent mols. derived from computational chem. The anal. of β, using a larger data set, confirms earlier conclusions that, for aprotic solvents, the basicity is determined by the partial charge on the most neg. atom of the solvent mol. and by the energy of the highest energy MO associated with the donor site. For alcs. and nitrogen bases containing N-H moieties, the β values deviate systematically from those for the non-hydrogen bonding solvents. Anal. of the polarity/polarizability parameter, π*, shows that it depends directly on the dipole moment, and quadrupolar amplitude of the solvent and on the energy of the HOMO, but decreases linearly with increasing solvent polarizability.

Journal of Solution Chemistry published new progress about Basicity. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Product Details of C2H5NO.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Ramya, Kunchanapalli published the artcileRoom-temperature cost-effective in-situ grown MAPbBr3 crystals and their characterization towards optoelectronic devices, Related Products of amides-buliding-blocks, the main research area is room temperature methylammonium lead bromidecrystal optoelectronic device.

We report the in-situ, room-temperature synthesis of methylammonium lead bromide CH3NH3PbBr3 crystals using N-Me formamide as a source of methylammonium (MA+) ions during the crystallization process to explore the structural, dielec., and electronic properties of CH3NH3PbBr3 crystals for optoelectronic applications. Optical absorption and radio-luminescence measurements affirm the direct bandgap nature of the crystals. Impedance spectroscopy measurements with various applied AC voltages within the 20 Hz-10 MHz frequency range depict the influence of ionic motions on elec. transport across crystal planes. We have extracted elec. transport parameters in CH3NH3PbBr3 crystals from the Nyquist plots, which we found to be distinctly varied wherein two different AC voltage amplitude regimes, broadly for 10-50 mV and 100-500 mV AC voltage range.

Materials Science & Engineering, B: Advanced Functional Solid-State Materials published new progress about Band gap. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Related Products of amides-buliding-blocks.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics