Month: November 2022

Lin, Li-Dan published the artcileA new type of composite MOFs based on high-valent Sb(V)-based units and cuprous-halide clusters, Category: amides-buliding-blocks, the main research area is antimony copper hydroxymethylpyridinylpropanediol MOF preparation; crystal structure antimony copper hydroxymethylpyridinylpropanediol MOF.

An unusual high-valent Sb(V)-based unit [SbL2]- (L = 2-(hydroxymethyl)-2-(pyridin-4-yl)-1,3-propanediol) was developed for the 1st time to combine with various cuprous-halide clusters for the construction of a brand-new class of heterometallic MOFs. This work not only promotes the limited development of Sb-based MOFs, but also provides a practical strategy for developing new types of composite materials.

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

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

Li, Jiantang published the artcileSupramolecular interactions induced distortion of BTB ligands: breaking convention to reproduce an unusual (3,4,4)-connected MOF topology, Formula: C2H5NO, the main research area is benzene triyltribenzoate copper MOF preparation crystal mol structure; supramol distortion BTB ligand breaking convention connected MOF topol.

An unusual (3,4,4)-connected MOF topol. has been reproduced by a 4,4′,4”-benzene-1,3,5-triyl-tribenzoate (BTB) ligand which was previously judged to be not feasible to form this network. The outcome demonstrates that supramol. interactions play a key role in the formation of this highly distorted network. Moreover, this triple interpenetrated framework exhibits high BET surface area.

Dalton Transactions published new progress about Crystal structure. 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

Xin, Bo-Tao published the artcileStructure-based design of inhibitors selective for human proteasome β2c or β2i subunits, Safety of (S)-2-Methylpropane-2-sulfinamide, the main research area is proteasome beta 2c 2i subunit inhibitor crystal structure.

Subunit-selective proteasome inhibitors are valuable tools to assess the biol. and medicinal relevance of individual proteasome active sites. Whereas the inhibitors for the β1c, β1i, β5c, and β5i subunits exploit the differences in the substrate-binding channels identified by X-ray crystallog., compounds selectively targeting β2c or β2i could not yet be rationally designed because of the high structural similarity of these two subunits. Here, we report the development, chem. synthesis, and biol. screening of a compound library that led to the identification of the β2c- and β2i-selective compounds LU-002c (4 (I); IC50 β2c: 8 nM, IC50 β2i/β2c: 40-fold) and LU-002i (5 (II); IC50 β2i: 220 nM, IC50 β2c/β2i: 45-fold), resp. Co-crystal structures with β2 humanized yeast proteasomes visualize protein-ligand interactions crucial for subunit specificity. Altogether, organic syntheses, activity-based protein profiling, yeast mutagenesis, and structural biol. allowed us to decipher significant differences of β2 substrate-binding channels and to complete the set of subunit-selective proteasome inhibitors.

Journal of Medicinal Chemistry published new progress about Crystal structure. 343338-28-3 belongs to class amides-buliding-blocks, name is (S)-2-Methylpropane-2-sulfinamide, and the molecular formula is C4H11NOS, Safety of (S)-2-Methylpropane-2-sulfinamide.

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

Zhu, Yueying published the artcileTwo Robust Isoreticular Metal-Organic Frameworks with Different Interpenetration Degrees Exhibiting Disparate Breathing Behaviors, Synthetic Route of 123-39-7, the main research area is bismuth indium terphenyltricarboxylato complex preparation crystal structure gas adsorption.

Herein, two robust isoreticular metal-organic frameworks (MOFs), ([Bi(CPTTA)]·[Me2NH2]·2DMF) (JLU-MOF120, H4CPTTA = 5′-(4-carboxyphenyl)-[1,1′:3′,1”-terphenyl]-3,4”,5-tricarboxylic acid, DMF = N, N- DMF) and ([In(CPTTA)]·[MeNH3]·2.5H2O·1.5NMF) (JLU-MOF121, NMF = N- methylformamide), with different interpenetration degrees were successfully constructed. According to the hard-soft acid-base (HSAB) theory, high-valent metal ions and carboxylate-based ligands were selected and formed 2-fold interpenetrated structures with saturated coordinated mononuclear second building units ([M(COO)4], M = Bi, In). Owing to the features of the frameworks, JLU-MOF120 and JLU-MOF121 exhibited excellent stability, which could retain their integrity in water for at least 14 days and aqueous solutions with a pH range of 3-11 for at least 24 h. According to the structural regulation strategy, by changing the torsion angles of the ligand, the degrees of interpenetration for JLU-MOF120 and JLU-MOF121 were different, leading to various gate-opening pressures in CO2 at 195 K. Also, JLU-MOF120 exhibits the scarce potential of C2H2/CO2 separation among Bi-MOF materials at 298 K under 101 kPa, JLU-MOF121 shows high CO2/CH4 selectivity under ambient conditions (11.7 for gas mixtures of 50 and 50% and 16.1 for gas mixtures of 5 and 95%). Also, owing to the flexibility of the structure, JLU-MOF121 possesses disparate breathing behaviors for C2H2 and C2H6 at 273 and 298 K, with the differences in uptakes among C2 hydrocarbons resulting in the potentiality of C2H4 purification Overall, such HSAB theory and the structural regulation strategy could provide a valid method for constructing stable and flexible structures for the application in gas separation

Inorganic Chemistry published new progress about Crystal structure. 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

Bhargao, Pooja H. published the artcileSynthesis and structural characterization of a barium coordination polymer based on a μ2-monoatomic bridging 4-nitrobenzoate, SDS of cas: 123-39-7, the main research area is crystal structure barium nitrobenzoate methylformamide coordination polymer; barium nitrobenzoate methylformamide polymer preparation fluorescence thermal decomposition.

The synthesis, spectral characterization, crystal structure and properties of [Ba(H2O)2(NMF)2(4-nba)2], (1; NMF = N-methylformamide; 4-nba = 4-nitrobenzoate), are reported. 1H and 13C NMR spectral data reveal NMF in 1. A strong band at 1660 cm-1 in the IR spectrum indicates the binding of amide O to Ba(II) which is confirmed by the single crystal structure. The unique Ba(II) in situated on a mirror plane exhibits nine coordination and is bonded to two symmetry related monodentate terminal NMF ligands via the amide O, and a terminal aqua ligand. The μ2-monoat. bridging binding mode of each of a crystallog. independent 4-nba ligand and a unique H2O ligand link the Ba(II) cations into an infinite chain extending along a, giving a 1-dimensional coordination polymer with Ba···Ba separations of 4.2522(3) Å. In the chain, the {BaO9} polyhedra are linked in a face sharing fashion. Thermal decomposition of gave BaCO3 residue. A comparative study of the structural chem. of several Ba coordination polymers is described.

Journal of Coordination Chemistry published new progress about Crystal structure. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, SDS of cas: 123-39-7.

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

Chu, Qianqian published the artcileEffective C2H2 Separation and Nitrofurazone Detection in a Stable Indium-Organic Framework, Related Products of amides-buliding-blocks, the main research area is indium carboxylphenylfluorobenzene terephthalate MOF preparation fluorescent sensor thermal stability; gas adsorption indium carboxylphenylfluorobenzene terephthalate MOF; crystal structure indium carboxylphenylfluorobenzene terephthalate MOF.

Based on the mixed carboxylate ligands synthesis strategy, an indium-organic framework, (Me2NH2)1.5[In1.5(FBDC)(BDC)]·2.5NMF·CH3CN (1) has been constructed by using the mixed 2,5-di(2′,5′-dicarboxylphenyl)-difluorobenzene (H4FBDC) and terephthalic acid (H2BDC). Compound 1 contains a 3D intersecting pore system which surface is modified by F atoms, and it has excellent stability in pH = 2-12 aqueous solutions The activated 1 shows high separation for C2H2/CO2 and C2H2/CH4. Moreover, 1 not only has strong luminescence but also has the high selectivity and sensibility of fluorescence detection to nitrofurazone (NZF) in antibiotic sensing experiments, which can be used as a luminescence sensor for NZF detection. A stable F-modified indium-organic framework (1) with 3D intersecting pore system has been synthesized. Compound 1 not only possesses a highly selective adsorption of C2H2 over CO2 and CH4 gases but also has an outstanding selective recognition of NZF in water.

Inorganic Chemistry published new progress about Crystal structure. 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

Deng, Lan published the artcileIntrinsic Molybdenum-Based POMOFs with Impressive Gas Adsorptions and Photochromism, Quality Control of 123-39-7, the main research area is molybdenum oxo triazole POM preparation ESR; crystal structure molybdenum oxo triazole POM; gas adsorption; oxidomolybdenum; photochromic; polyoxometalate organic frameworks; triazoles.

Novel molybdenum(VI/V) POM-based self-constructed frameworks [MoVI12O24(μ2-O)12(trz)6(H2O)6]·6Hma·18H2O (1, Htrz = 1H-1,2,3-triazole, ma = methylamine), [MoVI7O14(μ2-O)8(trz)5(H2O)]·7Hma·5H2O (2), Na3[MoV6O6(μ2-O)9(Htrz)3(trz)3]·7.5H2O (3) and [MoV8O8(μ2-O)12(Htrz)8]·30H2O (4) were covalently decorated with tri-coordinated deprotonated/protonated 1,2,3-triazoles. Channels with an inner diameter of 7.5 S were found in 1, whereas a tunnel composed of stacking mols. with an inner diameter of 4.1 S along the b-axis exists in 2; it is occupied by free disordered methylamines, showing selective adsorption of O2 and CO2 at 25°C. Obvious downfield shifts were observed by 13C NMR spectroscopies for methylamines inside the confined channels in 1 and 2. There are diversified pores in 3 and 4, which are formed by the mols. themselves and intermol. accumulations. Adsorption tests indicate that 3 and 4 are fine adsorption materials for CH4 and CO2 under low pressure that rely on the environments built by the POMs. Correspondingly, 1 and 2 display reversible photoresponsive thermochromism that is subtlety influenced by the channels. The polyoxometalate organic frameworks (POMOFs) with multiple functional adsorptions are easy to assemble. Their photo-/thermoresponse properties offer a new pathway for the self-constructions of one-off hybrid materials that possess the good properties of both POMs and MOFs.

Chemistry – A European Journal published new progress about Crystal structure. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Quality Control of 123-39-7.

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

Zhang, Bin published the artcileTwo Robust In(III)-Based Metal-Organic Frameworks with Higher Gas Separation, Efficient Carbon Dioxide Conversion, and Rapid Detection of Antibiotics, COA of Formula: C2H5NO, the main research area is indium pyridyltetracarboxylate MOF preparation fluorescent sensor gas adsorption; cycloaddition catalyst indium pyridyltetracarboxylate MOF; crystal structure indium pyridyltetracarboxylate MOF.

With the aid of a pyridyl tetracarboxylate ligand, 2,5-bis(2′,5′-dicarboxylphenyl)pyridine (H4L), two indium-organic frameworks, [In2(L)(OH)2]·2DMF·2H2O (1) and [Me2NH2][In(L)]·2.5NMF·4H2O (2), with (6,8)- and (4,4)-connected nets have been constructed in different solvent systems. Both 1 and 2 exhibit high thermal and chem. stability. Gas sorption behavior of 1 and 2 for N2, C2H2, C2H4, CO2, and CH4 indicate excellent separation selectivities of C2Hx/CH4 and CO2/CH4. Furthermore, 1 possesses a high d. of Bronsted sites and shows efficient catalytic conversion for CO2 cycloaddition with epoxides. Meanwhile, luminescence investigations reveal that 2 can detect nitrofurazone efficiently. Two robust In(III)-based metal-organic frameworks with highly selective adsorption of C2H2, C2H4, and CO2 over CH4 have been rationally constructed. Especially, 1 possesses a high d. of Bronsted sites and can be used as an efficient heterogeneous catalyst to achieve the conversion of CO2, while 2 exhibits low detection limit, rapid response, and unique antiinterference ability toward nitrofurazone.

Inorganic Chemistry published new progress about Crystal structure. 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

Lundrigan, Travis published the artcileEnantioselective Imine Reduction Catalyzed by Phosphenium Ions, Recommanded Product: (S)-2-Methylpropane-2-sulfinamide, the main research area is diazophosphenium triflate cation preparation reduction catalyst; enantioselective imine reduction aryl heteroaryl pyrrolidine piperidine.

The first use of phosphenium cations in asym. catalysis is reported. A diazaphosphenium triflate, prepared in two or three steps on a multigram scale from com. available materials, catalyzes the hydroboration or hydrosilylation of cyclic imines with enantiomeric ratios of up to 97:3. Catalyst loadings are as low as 0.2 mol %. Twenty-two aryl/heteroaryl pyrrolidines and piperidines were prepared using this method. Imines containing functional groups such as thiophenes or pyridyl rings that can challenge transition-metal catalysts were reduced employing these systems.

Journal of the American Chemical Society published new progress about Crystal structure. 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

Zhao, Jiong-Peng published the artcileTunable Ferromagnetic Strength in Niccolite Structural Heterometallic Formate Framework Based on Orthogonal Magnetic Orbital Interactions, Safety of N-Methylformamide, the main research area is niccolite structural heterometallic formate framework tunable ferromagnetism magnetocaloric effect.

A series of heterometallic formate framework templated by amines were solvothermally prepared They feature the formula of [AI][CrMII(HCO2)6] (AI = NH4H2OI and M = Mn for 1, AI = CH3NH3I and M = Fe for 2, AI = CH3NH2CH3I and M = Co for 3, AI = CH3NH3I and M = Ni for 4). The title compounds exhibit isostructural niccolite architectures with differences only in the host metal ions and guest amines. Tunable ferromagnetic (FO) strength was realized in the resulting framework under the guidance of orthogonal magnetic orbital anal. of CrIII (t2g3eg) and MII (t2g3eg2 for MnII, t2g4eg2 for FeII, t2g5eg2 for CoII, t2g6eg2 for NiII) ions. The magnetic ordering temperatures derived from the exptl. magnetic measurements for 1-4 are lower than 2, 10.3, 7.6, and 22.0 K, resp. Notably, thanks to the weak FO coupling between CrIII and MnII ions, compound 1 displays a large magnetocaloric effect bearing the maximum of magnetic entropy change (-ΔSmmax) up to 43.9 J kg-1 K-1 with ΔH = 7 T and T = 3.5 K, larger than most reported transition metal-based complexes and com. gadolinium gallium garnet (Gd3Ga5O12) (-ΔSmmax = 38.4 J kg-1 K-1 with ΔH = 7 T). From 1, 2/3, to 4, an enhancement of the magnetic ordering temperature is observable due to the increasing strength of FO interactions between CrIII and MII ions. Our work provides a successful instance to modulate the strength of FO exchange via analyzing the orthogonal magnetic orbitals of heterometallic ions.

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

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