Author: tianli

Hight-Huf, Nicholas published the artcileStabilization of Three-Particle Excitations in Monolayer MoS2 by Fluorinated Methacrylate Polymers, Recommanded Product: n-Octanol, the main research area is molybdenum sulfide monolayer fluorinated methacrylate polymer trion stabilization.

While extrinsic factors, such as substrates and chem. doping, are known to strongly influence visible photoemission from monolayer MoS2, key fundamental knowledge for p-type polymeric dopants is lacking. We investigated perturbations to the electronic environment of 2D MoS2 using fluorinated polymer coatings and specifically studied stabilization of three-particle states by monitoring changes in intensities and emission maxima of three-particle and two-particle emissions. We calculated changes in carrier d. and trion binding energy, the latter having an addnl. contribution from MoS2 polarization by the polymer. Polarization is further suggested by Kelvin probe force microscopy (KPFM) measurements of large Fermi level shifts. Changes similar in magnitude, but opposite in sign, were observed in 2D MoS2 coated with an analogous nonfluorinated polymer. These findings highlight the important interplay between electron exchange and electrostatic interactions at the interface between polymers and transition metal dichalcogenides (TMDCs), which govern fundamental electronic properties relevant to next-generation devices.

Journal of Physical Chemistry Letters published new progress about Binding energy. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Recommanded Product: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ou, Zhi Rong published the artcileControllable Depolymerization and Recovery of Interlocked Covalent Adaptable Networks via Cascading Reactions of the Built-In Reversible Bonds, Product Details of C17H28O8S4, the main research area is controllable depolymerization interlocked covalent adaptable network.

A novel strategy for controllable depolymerization and recovery of polymer blends is proposed. The core advance lies in the application of reversible boronic ester bonds and imine bonds, which possess the abilities of correlative scission and rebuilding. Accordingly, reversibly interlocked polymer networks (RILNs) are prepared from two preformed crosslinked polymers, which resp. carry the two reversible bonds. By taking advantage of the intimate packing of the macromols. from the two networks in the RILNs, the cascading effect between boronic ester bonds and imine bonds is enabled. When the DMF swollen RILNs are triggered by a little water, the boronic ester bonds in one component network are decomposed, affording boronic acid, which subsequently catalyzes the cleavage of the adjacent imine bonds in the other component network. Meanwhile, scission of the imine bonds also promotes decomposition of the boronic ester bonds as well. The cascading processes can be reversed via dehydration-induced reformation of boronic ester bonds. Hence, RILNs are allowed to be depolymerized in a controlled manner and then recovered by removing the solvent and water.

Macromolecules (Washington, DC, United States) published new progress about Binding energy. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Product Details of C17H28O8S4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Saglam, Ertugrul Gazi published the artcileSyntheses of and structural studies on some square planar dithiophosphonato Ni(II) complexes, octahedral pyridine derivatives thereof and x-ray crystallography, DFT and molecular docking studies of the latter, Formula: C5H12O, the main research area is crystal mol structure DFT dithiophosphonate nickel preparation DNA docking.

Five new dithiophosphonic acids ((p-MeOC6H4)PS(SH)(OR), HLn, (n = 1-5); R = 3-pentyl-, HL1; R = 1-phenyl-1-propyl-, HL2; R = 4-tert-Bu benzyl-, HL3; R = diphenylmethyl-, HL4; R = 4-tert-butylcyclohexyl-, HL5) were prepared by the reaction of Lawesson reagent with the corresponding alcs. As the acids were viscous liquids and difficult to purify they were converted to their ammonium salts ([NH4Ln]) for purification through crystallization Four coordinated Ni(II) complexes of the dithiophosphonates ([Ni(Ln)2]) were synthesized in MeOH medium and purified. The reaction between these square planar complexes and pyridine was carried out to produce six coordinated pyridine derivatives ([Ni(Ln)2(py)2]). The structures of the fifteen compounds so prepared were elucidated by spectroscopy, elemental anal. methods and magnetic susceptibility measurement. The mol. and crystal structure of [Ni(L2)2(py)2] was determined by x-ray crystallog. DFT calculations were carried out using the B3LYP functional with the LANL2DZ basis set to calculate the optimized geometrical structure and determine the energies, the orientations of the MOs (HOMOs and LUMOs) and the mol. electrostatic potential (MEP) surfaces of the octahedral complex [Ni(L2)2(py)2]. The results for [Ni(L2)2(py)2] revealed that it bonded to the active sites of A-DNA and B-DNA by weak noncovalent interactions, which was also supported by mol. docking studies.

Journal of Molecular Structure published new progress about Binding energy. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Formula: C5H12O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Guo, Wenwen published the artcileMagnolol-derived thiol-ene photo-polymerized membranes with intrinsic anti-flammability and high transparency, Application of Pentaerythritol tetra(3-mercaptopropionate), the main research area is magnolol thiol ene photopolymerization membrane transparency flammability property.

In this study, a phosphorus-containing bio-based monomer (MBDPP) was first synthesized from renewable magnolol, and subsequently photo-cured with tri-thiol (TPTMP) or tetra-thiol (PETMP) monomers via thiol-ene polymerization The synthesized MBDPP/TPTMP and MBDPP/PETMP membranes exhibited high char residues at 700°C in the TGA tests, which were 19.8 wt% and 24.2 wt% for nitrogen while 16.5 wt% and 20.2 wt% for air, resp., indicating superior charring capacity of both membranes. DMA results indicated that both the higher stiffness and the Tg of the cured MBDPP/PETMP membrane was ascribed to its higher crosslinking d. than that of the cured MBDPP/TPTMP owing to the tetra-functional groups of PETMP. In the open flame test, both MBDPP/TPTMP and MBDPP/PETMP membranes self-extinguished immediately when removing the flame source, manifesting excellent intrinsic anti-flammability. The cone calorimeter results further demonstrated that MBDPP/TPTMP and MBDPP/PETMP membranes showed lower PHRR (419 and 388 kW/m2, resp.) and THR (41.38 and 38.98 MJ/m2, resp.) values than most of the thiol-ene photo-polymerized counterparts previously reported. The excellent anti-flammability of MBDPP/TPTMP and MBDPP/PETMP membranes originated from the formation of expandable char residues that played an efficient role in hampering the transfer of flammable pyrolysis products to flame zone as well as insulating the heat irradiation during combustion. Addnl., both MBDPP/TPTMP and MBDPP/PETMP membranes showed excellent transparency (transmittance >85% in the visible region) and flexibility (breaking elongation around 40%). Taking the intrinsic anti-flammability, exceptional transparency and high flexibility into account, the MBDPP/TPTMP and MBDPP/PETMP systems are suitable as intumescent flame retardant coating materials.

Composites, Part B: Engineering published new progress about Binding energy. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Application of Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Pakrieva, E. published the artcileGreen Oxidation of n-octanol on Supported Nanogold Catalysts: Formation of Gold Active Sites under Combined Effect of Gold Content, Additive Nature and Redox Pretreatment, Safety of n-Octanol, the main research area is green oxidation n octanol supported nanogold catalyst gold pretreatment.

The combined influence of gold content (0.5 or 4 weight %), modifying additives (La or Ce oxides) and redox pretreatments (H2 or O2) on catalytic properties and formation of active sites of Au/TiO2 in the selective oxidation of n-octanol under mild conditions was studied. Samples were characterized by BET, XRD, EDX, ICP, TEM, STEM-HAADF, CO2-TPD, H2-TPR and XPS methods. The order of catalytic activity depended on the support nature for all treated samples, as follows: Au/La2O3/TiO2>Au/CeO2/TiO2>Au/TiO2. The catalytic activity enhanced with the increase of gold loading in the samples with hydrogen pretreatment, while after the oxidative pretreatment of the catalysts the opposite dependence of the activity with the gold content was found. This catalytic behavior was explained by a change in the surface concentration of monovalent gold ions, which seemed to be the active sites. The most active catalyst, 0.5 % Au/La2O3/TiO2, pretreated in oxidative atm., had the highest surface concentration of monovalent gold ions.

ChemCatChem published new progress about Binding energy. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Safety of n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Srivastava, Ashutosh published the artcileDeep eutectic solvents based on imidazolium cation and probing redox speciation of uranium oxides by electrochemical and theoretical simulation, Recommanded Product: 2,2′-Oxydiacetic acid, the main research area is imidazolium deep eutectic solvent electrochem thermogravimetric mol dynamics.

Two new deep eutectic solvents, different from hitherto known and based on common choline chloride, were prepared 1-methyl-3-decylimidazolium bromide mixed with hydrogen bond donors, malonic acid and diglycolic acid to form DES. Dissolution of uranium oxides (UO3 and UO2) was explored in both of them and characterization of the resultant solutions was carried out by IR, TGA and UV-Vis spectroscopy. Redox speciation of dissolved uranium oxides was probed in these redox-active DES through cyclic voltammetry, differential pulse voltammetry and in situ spectroelectrochem. measurements. Interestingly, the formation of uranium oxo species was observed through the dissolution of UO3 in both the DES. The electrochem. characteristics via redox thermodn. (peak potential and formal redox potential), transport property (diffusion coeffecient D0), heterogeneous electron transfer kinetic parameters (αn and k0) and mechanistic electron transfer of the dissolved uranium species in two DES were investigated. The speciation of uranium was decoded through the electronic absorption spectra of uranium in its lower oxidation states [U(V) and U(IV)] acquired through in situ spectroelectrochem. electrolysis with varying cathodic potentials. Studies were also carried out using mol. dynamics (MD) and d. functional theory (DFT) simulations to authenticate the electrochem. outcomes and to acquire the binding energy, optimized structure and MO diagram of dissolved uranium species. Further, the MD simulation sheds light on the probable equatorial coordinating atoms of dissolved uranium species. This is the first report, to the best of our knowledge, on imidazolium-based DES and actinide ions.

Journal of Electroanalytical Chemistry published new progress about Binding energy. 110-99-6 belongs to class alcohols-buliding-blocks, name is 2,2′-Oxydiacetic acid, and the molecular formula is C4H6O5, Recommanded Product: 2,2′-Oxydiacetic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhao, Jianjian published the artcileArene-perfluoroarene interaction induced chiroptical inversion and precise ee% detection of chiral acids in a benzimidazole-involved ternary coassembly, Name: (S)-2-hydroxysuccinic acid, the main research area is pyrenecarboxylate octafluoronaphthalene hydrogen bond chiral recognition CD.

Flexible regulation of chirality and handedness of chiral functional materials and quant. sensing of natural chiral compounds remains a considerable challenge. Herein, an achiral fluorescent 1-pyrenecarboxylic acid-benzimidazole derivative (PBI) was synthesized and its chiroptical properties upon coassembly with chiral acids (TA and MA) and octafluoronaphthalene (OFN) through hydrogen bonds between benzimidazole and chiral acids as well as an arene-perfluoroarene (AP) interaction between a pyrene moiety and OFN were systemically studied. The binary assemblies of PBI/TA and PBI/MA displayed opposite chiroptical properties including CD and circularly polarized luminescence (CPL) signals. Interestingly, the handedness of CPL was further inverted in ternary assemblies due to the synergistic effect of the AP interaction and hydrogen bonds. Besides, the highly accurate chiral sensing of chiral acids via binary assemblies was successfully achieved with a high correlation coefficient This work provides a simple method for regulating the handedness of chiroptical active materials and quant. sensing of chiral acids through orthogonal multiple component coassemblies.

Nanoscale published new progress about Binary systems. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Name: (S)-2-hydroxysuccinic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gomez, Sara published the artcileA molecular twist on hydrophobicity, COA of Formula: C8H18O, the main research area is organic solvent water binary system mol twist hydrophobicity.

A thorough exploration of the mol. basis for hydrophobicity with a comprehensive set of theor. tools and an extensive set of organic solvent S/water binary systems is discussed in this work. Without a single exception, regardless of the nature or structure of S, all quantum descriptors of bonding yield stabilizing S···water interactions, therefore, there is no evidence of repulsion and thus no reason for etymol. hydrophobicity at the mol. level. Our results provide mol. insight behind the exclusion of S mols. by water, customarily invoked to explain phase separation and the formation of interfaces, in favor of a complex interplay between entropic, enthalpic, and dynamic factors. S···water interfaces are not just thin films separating the two phases; instead, they are non-isotropic regions with d. gradients for each component whose macroscopic stability is provided by a large number of very weak dihydrogen contacts. We offer a definition of interface as the region in which the d. of the components in the A/B binary system is not constant At a fundamental level, our results contribute to better current understanding of hydrophobicity.

Chemical Science published new progress about Binary systems. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tseng, Yu-Chao published the artcileIn Situ Polymerized Electrolytes with Fully Cross-Linked Networks Boosting High Ionic Conductivity and Capacity Retention for Lithium Ion Batteries, Safety of Pentaerythritol tetra(3-mercaptopropionate), the main research area is polymerized electrolyte ionic conductivity lithium battery.

In this report, quasi-solid polymer electrolytes (QPEs) based on dicationic imidazolium-based poly(ionic liquid) (PIL) cross-linker end capped with polyethylene glycol (PEG) segments have been UV cured directly onto lithium anode via an in situ solventless strategy, creating a direct, effective, and versatile method for electrolyte production Depending on the composition, room temperature ionic conductivities are found to vary between 0.7 and 1.1 mS cm-1, while compressive elastic moduli reveal the values between 0.072 and 0.349 MPa observed at a 5% strain. These results, together with FT-IR anal., indicate that fully cross-linked networks can be formed in the QPE-1:1.6 sample, which is conducive to generating well-connected ion channels and affords the assembled lithium ion batteries (LIBs) with a wide electrochem. window and a remarkable discharge capacity retention (153 mAh g-1 at 0.2 C and 133 mAh g-1 at 1 C) at 25 °C. Also, the adopted in situ polymerization can contribute to an enhanced electrolyte/electrode interfacial compatibility and conformal attachment, suppressing the growth of lithium dendrites and extending the cycle life of the assembled battery. Both the outstanding electrochem. properties of QPE-1:1.6 and the facile fabrication process potentially make it one of the promising electrolyte candidates for future LIBs developments.

ACS Applied Energy Materials published new progress about Battery anodes. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Safety of Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Jianwei published the artcileArtificial Single-Ion Conducting Polymer Solid Electrolyte Interphase Layer toward Highly Stable Lithium Anode, Category: alcohols-buliding-blocks, the main research area is artificial single ion conducting artificial electrolyte interphase lithium anode.

Lithium (Li) as one of the most promising anode materials for the next-generation batteries was unfortunately plagued by the inevitable Li dendrite growth and the dynamically destroy/reconstruction of the unstable native solid electrolyte interphase (SEI) layer, which can severely affect the specific capacity and lifespan of lithium batteries, limiting the practical application of the Li anode. In this work, a single ion conducting artificial polymer SEI layer is designed on the surface of the Li anode. The fabricated SEI layer shows high ionic conductivity and lithium transference number, which is beneficial for inducing homogeneous Li deposition, effectively suppressing the nucleation and growth of dendrite. Moreover, the uniform and stable SEI layer with a well-designed network structure can availably protect the Li anode from directly contacting with the electrolyte, reducing the related side reactions and effectually limit the addnl. consumption of the active Li and electrolyte. The sym. Li cells can cycle stably over 1200 h without short-circuit at the current/capacity densities of 1 (1 mAh/cm2) and 5 mA/cm2 (5 mAh/cm2). The assembled LiFePO4/LPEDV-Li cells exhibit high capacity retention ≤ 81.3% after 2400 cycles at the high rate of 8 C. Therefore, the designed artificial SEI layer with excellent properties presents a high application potential in stabilizing the Li anode.

ACS Applied Energy Materials published new progress about Battery anodes. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts