Category: 123-39-7

Belic, Sanja published the artcileThermochromic behaviour and thermodynamics of cobalt(II) chloride complexes in ammonium nitrate + N-methylformamide mixture, Computed Properties of 123-39-7, the main research area is cobalt chloride complex ammonium nitrate methylformamide mixture thermodn.

In this paper thermochromic features of cobalt(II) were investigated in the binary mixture containing inorganic salt (ammonium nitrate) and mol. solvent (N-methylformamide) in order to find responsive thermochromic medium for possible application in a greenhouses for auto-regulated shading and solar protection. Absorption spectra of cobalt(II) in the NH4NO3 + zNMF (z = 3, 4, 5, 6 and 20) binary mixtures were recorded in the visible wavelength range in the presence of different cobalt(II) and chloride concentrations at five selected temperatures: 308.15; 318.15; 328.15; 338.15 and 348.15 K. From the obtained spectra, geometry, composition and speciation of the complexes were discussed. Influences of the temperatureand mixture composition on the absorption spectra were also analyzed. From an anal. of the spectra using two computer programs, it was concluded that the following complexes were formed: [Co(NO3)4(NMF)2]2-, [CoCl3(NO3)(NMF)2]2-and [CoCl4]2-. For these complexes stability constants were determined at all temperatures Thermodn.parameters were also calculated using the temperaturedependence of calculated stability constants

Journal of Molecular Liquids published new progress about Absorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Computed Properties of 123-39-7.

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

Sun, Lihua published the artcileSolubility, density and refractive index of formamide/N-methylformamide/N, N-dimethylformamide + rubidium bromide/cesium bromide + water ternary systems, Recommanded Product: N-Methylformamide, the main research area is formamide DMF rubidium bromide water ternary system refractive index.

The Solubility, d. and refractive index of the formamide(FA)/N-methylformamide(NMF)/N,N-dimethylformamide(DMF) + rubidim bromide/cesium bromide+ water ternary systems were determined at (283.15, 298.15 and 313.15) K. The solubility of the RbBr and CsBr decrease significantly when adding amides into the aqueous solution The variation trend of d. is consistent with solubility, and the change of the refractive index is different. The isothermal exptl. solubility was correlated by the NRTL model and the UNIQUAC model. The isothermal solubility, d. and refractive index of the ternary systems were fitted by the four parameter equation. Moreover, the mean activity coefficients of the FA/NMF/DMF + RbBr/CsBr + H2O systems at exptl. temperatures were obtained through the UNIQUAC model. Besides, to investigate the temperature effect on the solid-liquid equilibrium, the multiple temperatures solubility was fitted by the modified Apelbl at equation and the λh equation.

Journal of Molecular Liquids published new progress about Absorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Recommanded Product: N-Methylformamide.

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

Rakipov, Ilnaz T. published the artcileFTIR spectral study of intermolecular interactions of C=O groups of amides in solution, Application In Synthesis of 123-39-7, the main research area is amide solution intermol interaction FTIR spectra.

The work is devoted to the evaluation and anal. of intermol. interactions of amides in solution The absorption frequencies of the C = O groups of N-methylformamide, N-methylacetamide, N,N-dimethylformamide, and N,N-dimethylacetamide in a series of solvents were measured by IR spectroscopy. An approach based on the thermochem. parameter SVW was used in order to estimate the contributions in intermol. interaction. Solvation effects on the stretching vibrations of the C = O groups of the amides were evaluated in this work and the same type of effects of the medium on the frequencies of the C = O groups of different amides was shown. The absorption frequencies of the C = O groups of N-methylformamide and N,N-dimethylformamide with methanol, ethanol or butanol in aprotic and proton-donor solvents were measured. The cooperative effects of hydrogen bonds of C = O groups of amides in the environment of associated solvents have been evaluated.

Journal of Molecular Liquids published new progress about Absorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Application In Synthesis of 123-39-7.

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

Cheng, Xian published the artcileExperimentally determined strengths of favorable and unfavorable interactions of amide atoms involved in protein self-assembly in water, COA of Formula: C2H5NO, the main research area is protein folding self assembly amide hydrogen bonding sp interaction; additivity; amide atom interactions; aqueous interactions; preferential interactions; thermodynamics.

Folding and other protein self-assembly processes are driven by favorable interactions between O, N, and C unified atoms of the polypeptide backbone and side chains. These processes are perturbed by solutes that interact with these atoms differently than water does. Amide NHA·A·A·O=C hydrogen bonding and various π-system interactions have been better characterized structurally or by simulations than exptl. in water, and unfavorable interactions are relatively uncharacterized. To address this situation, we previously quantified interactions of alkyl ureas with amide and aromatic compounds, relative to interactions with water. Anal. yielded strengths of interaction of each alkylurea with unit areas of different hybridization states of unified O, N, and C atoms of amide and aromatic compounds Here, by osmometry, we quantify interactions of 10 pairs of amides selected to complete this dataset. An anal. yields intrinsic strengths of six favorable and four unfavorable atom-atom interactions, expressed per unit area of each atom and relative to interactions with water. The most favorable interactions are sp2O-sp2C (lone pair-π, presumably n-π*), sp2C-sp2C (π-π and/or hydrophobic), sp2O-sp2N (hydrogen bonding) and sp3C-sp2C (CH-π and/or hydrophobic). Interactions of sp3C with itself (hydrophobic) and with sp2N are modestly favorable, while sp2N interactions with sp2N and with amide/aromatic sp2C are modestly unfavorable. Amide sp2O-sp2O interactions and sp2O-sp3C interactions are more unfavorable, indicating the preference of amide sp2O to interact with water. These intrinsic interaction strengths are used to predict interactions of amides with proteins and chem. effects of amides (including urea, N-ethylpyrrolidone [NEP], and polyvinylpyrrolidone [PVP]) on protein stability.

Proceedings of the National Academy of Sciences of the United States of America published new progress about Additivity. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, COA of Formula: C2H5NO.

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

Jovic, Branislav published the artcileAmides as a model system of low molar mass algal organic matter. Influence on the adsorption of p-nitrophenol on activated carbon, HPLC of Formula: 123-39-7, the main research area is amide water activated carbon nitrophenol adsorption equilibrium diffusivity parameter.

In this study, the adsorption equilibrium and diffusivity parameters of p-nitrophenol were estimated for water containing different concentrations of secondary amides. Com. powd. activated carbon was used as an adsorbent. The external mass transfer coefficient (kf), the surface diffusion coefficient (Ds) and the standard free Gibbs energy were calculated for p-nitrophenol in the presence of different secondary amide concentrations The anal. established that there are correlations between structural parameters of amides, on the one hand, and diffusion and thermodn. parameters for p-nitrophenol adsorption process, on the other. It was noticed that voluminous hydrophobic amides decreased the adsorption capacity of p-nitrophenol on activated carbon. On the basis of the results obtained for external mass transfer coefficients, it is assumed that amides cause the reduction of adsorption capacity of p-nitrophenol onto activated carbon by concentrating at the solid/liquid interface.

Arabian Journal of Chemistry published new progress about Adsorption. 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

Zhou, Yue published the artcileEnhancing CO2 Electrocatalysis on 2D Porphyrin-Based Metal-Organic Framework Nanosheets Coupled with Visible-Light, Formula: C2H5NO, the main research area is carbon dioxide electrocatalysis porphyrin MOF nanosheet visible light; 2D nanosheets; carbon dioxide reduction; photocoupled electrocatalysis; porphyrin; visualized channels.

2D Catalysts combined with single atom sites are promising candidates to promote CO2 reduction performance, but the ability to target stable materials with distinct structure still remains challenging. Herein, a series of single metal atoms anchored 2D metal-organic framework nanosheets (MOF-NS-M) with visualized and well-ordered mesoporous structures are fabricated and exhibit enhanced CO2 reduction activity and selectivity with the assistance of visible-light. Encouragingly, the CO Faradaic efficiency of MOF-NS-Co exceeds 90% in a wide potential window of -0.5 to -1.0 V vs. RHE and reaches 98.7% with 100 mV pos. shift compared with the result measured under dark. The catalytic kinetics studies show a fast initial electron transfer to CO2 to form *COO-, thanks to the sufficient exposed active sites resulting from the nanosheet nature and adjusted electron transfer pathway caused by the porphyrin photoswitch.

Small Methods published new progress about Adsorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Formula: C2H5NO.

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

Chu, Qianqian published the artcileStable Indium Pyridylcarboxylate Framework with Highly Selective Adsorption of Cationic Dyes and Effective Nitenpyram Detection, Application of N-Methylformamide, the main research area is carboxypyridinylterephthalate indium metal organic framework preparation crystal mol structure; pyridylcarboxylate indium framework preparation adsorption cationic dye nitenpyram; luminescence carboxypyridinylterephthalate indium framework.

On the basis of an undeveloped asym. pyridylcarboxylate ligand, 2-(2-carboxypyridin-4-yl)terephthalic acid (H3CPTA), an indium pyridylcarboxylate framework, [(Me)2NH2]1.5[In1.5(CPTA)2]·5.5NMF·6H2O (1), is synthesized under solvent thermal conditions. 1 Displays a 3D anionic framework with a large void space, which contains open square channels with a cross section of 14.6 Å and a pore surface decorated with carboxylic oxygen atoms. Depending on the anionic skeleton and high water stability, 1 exhibits high adsorption selectivity and capacity for cationic dyes in aqueous solution Furthermore, the luminescence performance illustrates that 1 has selectivity and sensitivity to nitenpyram with good recyclability.

Inorganic Chemistry published new progress about Adsorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Application of N-Methylformamide.

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

Polunin, K. E. published the artcileDetection and Neutralization of Unsymmetrical Dimethylhydrazine on the Surface of Construction Materials, Formula: C2H5NO, the main research area is neutralization dimethylhydrazine construction material ozonation.

The construction materials that contacted with unsym. dimethylhydrazine and the desorption solutions obtained when treating the contaminated surface of metals and alloys with water and reagents were studied by chromatog. and mass spectrometry. Neutralization of unsym. dimethylhydrazine was studied using ozone and shungite. Ozonation makes it possible to destroy the toxicant mols. chem. and phys. adsorbed on the surface of metal constructions, due to which they can be reused and utilized. Shungite effectively adsorbs and catalytically decomposes not only unsym. dimethylhydrazine and its transformation products, but also oligomer compounds formed during the storage of hydrazine fuel. Ozonation of spent shungite can increase the efficiency of destructive processes and completeness of its regeneration.

Russian Journal of Physical Chemistry A published new progress about Adsorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Formula: C2H5NO.

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

Karmakar, Anirban published the artcilePolyaromatic Carboxylate Ligands Based Zn(II) Coordination Polymers for Ultrasound-Assisted One-Pot Tandem Deacetalization-Knoevenagel Reactions, Formula: C2H5NO, the main research area is polyaromatic carboxylate ligand zinc coordination polymer Knoevenagel reaction.

Solvothermal reactions between the polyaromatic group containing carboxylic acid pro-ligands 5-{(pyren-1-ylmethyl)amino}isophthalic acid (H2L1) and 5-{(anthracen-9-ylmethyl)amino}isophthalic acid (H2L2) with Zn(NO3)2·6H2O led to the formation of the new 1D coordination polymer [Zn(L1)(NMF)]n (1) and four other coordination polymers, [Zn(L1)(DMF)]n (2), [Zn(L1)(4,4-Bipy)]n (3), [Zn(L2)(DMF)(H2O)2]n·n(H2O) (4) and [Zn2 (L2)2(DMF)(CH3OH)]n (5), which were previously reported by our group. Single crystal X-ray diffraction analyses revealed that the CP 1 has a one-dimensional (1D) double-chain-type structure similar to that of CP 2. For CP 3, the assembly of the Zn(II) ion with a deprotonated L12- ligand and 4,4′-bipyridine produces a 3D network. CP 4 and 5 exhibit 1D linear and 2D layered-type structures. The ultrasound-assisted tandem reactions promoted by CPs have not yet been well studied. Thus, in the present work, we have investigated the catalytic activities of the newly synthesized CP 1, as well as of the other CPs 2-5, towards the tandem deacetalization-Knoevenagel condensation reactions of various acetals under ultrasonic irradiation They proved to be highly efficient, with special emphasis on catalyst 1, which completely converted the substrate (benzaldehyde di-Me acetal) into the desired product (2-benzylidenemalononitrile) after 2 h. The stability of the catalysts, namely regarding the action of ultrasonic radiation, was demonstrated by their reuse, where only a slight loss of activity was observed after four cycles. Heterogeneity was also demonstrated, and no leaching was detected over the various cycles.

Catalysts published new progress about Adsorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Formula: C2H5NO.

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

Zhang, Biao published the artcileCost-effective preparation of microporous polymers from formamide derivatives and adsorption of CO2 under dry and humid conditions, Recommanded Product: N-Methylformamide, the main research area is microporous polymer carbon dioxide adsorption polymerization surface area porosity.

Nitrogen-rich microporous polymers that contain different contents of primary, secondary and tertiary amine groups in their networks are prepared via the amine-formamido condensation reaction utilizing formamide, formohydrazide, N-methylformamide and N,N-dimethylformamide as starting monomers to polymerize with melamine, resp., via a facile one-step polymerization reaction in the absence of any catalyst. The resultant four polymers exhibit BET surface areas of 612-748 m2 g-1 and adjustable pores sizes in the range from 0.52 to 1.10 nm. The systematically changed types of amine groups and porosity parameters result in interesting variations of interfacial interactions between the porous surface and CO2 mol., so as to significantly influence the adsorption behavior of CO2 gas. The uptake of CO2 in polymers is up to 14.6 wt% (273 K/1.0 bar) with an outstandingly high CO2/N2 adsorption selectivity of 151. Moreover, after adding a small amount of water vapor in the mixed CO2/N2 gas, the adsorption selectivity CO2/N2 further increases to 173. The adsorption of CO2 and its selectivity over N2 in this series of microporous polymers under both dry and humid conditions are studied and discussed in terms of the type of the amine group on the polymer skeletons, the adsorption mechanism and the porosity parameters.

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

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