Category: 33100-27-5

Bessam, S.; Reguig, F. Hamza; Krallafa, A. M.; Martinez-Haya, B. published their research in Physical Chemistry Chemical Physics in 2021. The article was titled 《Dynamics of coordination of H3O+ and NH4+ in crown ether cavities》.Recommanded Product: 1,4,7,10,13-Pentaoxacyclopentadecane The article contains the following contents:

Crown ethers stand out for their ability to form inclusion complexes with metal cations and pos. charged mol. moieties. Hydronium and ammonium interact strongly with crown ethers and potentially modulate their ionophoric activity in protic solvents and physiol. environments commonly involved in (bio)technol. applications. In this work, Born-Oppenheimer mol. dynamics (BOMD) computations are employed to gain insights into the coordination arrangements of H3O+ and NH4+ in the complexes with the native crown ethers 15-crown-5 (15c5) and 18-crown-6 (18c6). Both cations display dynamic changes in coordination inside the cavities of the crown ethers. On the one hand, hydronium explores different coordination arrangements, through rotation around its C3 axis in the 15c5 complex, and through breathing motions, involving rapid inversions of the O atom along the C3 axis in the 18c6 complex. On the other hand, ammonium undergoes a facile rotation in three dimensional space, leading to frequent changes in the NH bonds involved in the coordination with the crown ether. The reduced host-guest symmetry matching of the 15c5 macrocycle enhances the reorientation dynamics and, in the case of H3O+, it promotes short H-bonding distances yielding events of proton transfer to the crown ether. The IR vibrational spectra predicted by the BOMD computations within this dynamic framework reproduce with remarkable accuracy the action spectra of the isolated complexes obtained in previous IR laser spectroscopy experiments The exptl. observed band positions and broadening can then be rationalized in terms of orientational diffusion of the cations, changes in the coordinating H-bonding pairs sustaining the complex and eventual proton bridge formation. In addition to this study using 1,4,7,10,13-Pentaoxacyclopentadecane, there are many other studies that have used 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Recommanded Product: 1,4,7,10,13-Pentaoxacyclopentadecane) was used in this study.

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. Recommanded Product: 1,4,7,10,13-Pentaoxacyclopentadecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

In 2022,Ch. Gagieva, Svetlana; Kurmaev, Dmitrii A.; Tuskaev, Vladislav A.; Khrustalev, Viktor N.; Churakov, Andrei V.; Golubev, Evgenii K.; Sizov, Alexander I.; Zvukova, Tamara M.; Buzin, Mikhail I.; Nikiforova, Galina G.; Evseeva, Maria D.; Bulychev, Boris M. published an article in European Polymer Journal. The title of the article was 《First example of cationic titanium (III) complexes with crown ether as catalysts for ethylene polymerization》.Recommanded Product: 33100-27-5 The author mentioned the following in the article:

Complex cations with a vacant coordination site are considered as the most plausible catalytically active centers of metallocene and post-metallocene polymerization catalysts. For the first time we demonstrated that cationic titanium (III) complexes stabilized with crown ether can be used as pre-catalysts for ethylene polymerization In the presence of alkyl aluminum chlorides and MgBu2 as cocatalysts, these complexes catalyze ethylene polymerization to produce Ultra High Mol. Weight Polyethylene (UHMWPE) with productivity up to 4650 kgPE/molTi h·atm and mol. weight up to 1.8·106 Da. UHMWPE powders were processed by the solid-phase method with subsequent orientation drawing into high-strength (1.4-2.1 GPa) and high-modulus (91-118 GPa) films. In the part of experimental materials, we found many familiar compounds, such as 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Recommanded Product: 33100-27-5)

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. Recommanded Product: 33100-27-5

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Santos, Jose; Calbo, Joaquin; Sandoval-Torrientes, Rafael; Garcia-Benito, Ines; Kanda, Hiroyuki; Zimmermann, Iwan; Arago, Juan; Nazeeruddin, Mohammad Khaja; Orti, Enrique; Martin, Nazario published an article in 2021. The article was titled 《Hole-Transporting Materials for Perovskite Solar Cells Employing an Anthradithiophene Core》, and you may find the article in ACS Applied Materials & Interfaces.Product Details of 33100-27-5 The information in the text is summarized as follows:

A decade after the report of the first efficient perovskite-based solar cell, development of novel hole-transporting materials (HTMs) is still one of the main topics in this research field. Two of the main advance vectors of this topic lie in obtaining materials with enhanced hole-extracting capability and in easing their synthetic cost. The use of anthra[1,9-bc:5,10-b′c′]dithiophene (ADT) as a flat π-conjugated frame for bearing arylamine electroactive moieties allows obtaining two novel highly efficient HTMs from very cheap precursors. The solar cells fabricated making use of the mixed composition (FAPbI3)0.85(MAPbBr3)0.15 perovskite and the novel ADT-based HTMs show power conversion efficiencies up to 17.6% under 1 sun illumination compared to the 18.1% observed when using the benchmark compound 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD). Detailed d. functional theory calculations allow rationalization of the observed opto-electrochem. properties and predict a flat mol. structure with a low reorganization energy that supports the high conductivity measured for the best-performing HTM. The experimental part of the paper was very detailed, including the reaction process of 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Product Details of 33100-27-5)

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. Product Details of 33100-27-5

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Rakipov, Ilnaz T.; Semenov, Konstantin N.; Petrov, Artem A.; Akhmadiyarov, Aydar A.; Khachatrian, Artashes A.; Fakhurtdinova, Aliya R.; Solomonov, Boris N. published an article in 2021. The article was titled 《Thermochemistry of Solution, Solvation and Hydrogen Bonding of Chloroform in Linear and Cyclic Ethers》, and you may find the article in Journal of Solution Chemistry.Quality Control of 1,4,7,10,13-Pentaoxacyclopentadecane The information in the text is summarized as follows:

In this work the thermochem. of solution, solvation and hydrogen bond formation of chloroform in linear and cyclic ethers was studied. The infinite dilution solution enthalpies of chloroform in di-Et ether, diglyme, 1,4-dioxane, THF, 12-crown-4 and 15-crown-5 were measured at 298.15 K. The solvation and hydrogen bonding enthalpies of chloroform in the ethers were calculated It was found that the hydrogen bonding enthalpies of chloroform in the ethers are significantly higher for linear than for cyclic ethers. The hydrogen bonding of ethers with chloroform was discussed in cases when ethers act as a solute or solvent. The experimental part of the paper was very detailed, including the reaction process of 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Quality Control of 1,4,7,10,13-Pentaoxacyclopentadecane)

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. Quality Control of 1,4,7,10,13-Pentaoxacyclopentadecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

In 2019,Journal of Medicinal Chemistry included an article by Yokoyama, Takeshi; Mizuguchi, Mineyuki. Electric Literature of C10H20O5. The article was titled 《Crown Ethers as Transthyretin Amyloidogenesis Inhibitors》. The information in the text is summarized as follows:

Transthyretin (TTR) is a tetrameric protein found in human serum and associated with amyloid diseases. Because the tetramer dissociation and misfolding of the monomer precede amyloid fibril formation, development of a small mol. that binds to TTR and stabilizes the TTR tetramer is an efficient strategy for the treatment of amyloidosis. Here, we report our discovery of the anti-TTR amyloidogenesis activities of crown ethers. X-ray crystallog. anal., binding assay, and chem. crosslinking assay showed that 4′-carboxybenzo-18C6 (4) stabilized the TTR tetramer by binding to the allosteric sites on the mol. surface of the TTR tetramer. In addition, 4 synergistically increased the stabilization activity of diflunisal, one of the most potent TTR amyloidogenesis inhibitors. These exptl. evidences establish that 4 is a valuable template compound as an allosteric inhibitor of TTR amyloidogenesis. The results came from multiple reactions, including the reaction of 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Electric Literature of C10H20O5)

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. Electric Literature of C10H20O5

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Jozwiak, Malgorzata; Urban, Aleksandra; Tyczynska, Magdalena published their research in Journal of Molecular Liquids in 2021. The article was titled 《Effect of properties of N,N-dimethylformamide + propan-1-ol mixtures on the solution enthalpy of selected cyclic ethers in these mixtures at 298.15 K. The contribution of solvent to the enthalpy of solvation of cyclic ethers》.COA of Formula: C10H20O5 The article contains the following contents:

The enthalpies of solution of cyclic ethers (1,4-dioxane, 12-crown-4, 15-crown-5 and 18-crown-6) in N,N-dimethylformamide+propan-1-ol mixtures have been measured over the range of composition of the mixture at 298.15 K. The preferential solvation process of cyclic ethers mols. in the investigated mixture has been discussed. The mole fraction of N,N-dimethylforamide in the solvation sphere of cyclic ethers and the contribution of solvent to the solvation enthalpy of cyclic ethers has been calculated On the basis of the obtained data, the effect of the structural and energetic properties N,N-dimethylformamide+propan-1-ol mixtures on the enthalpy of solution of cyclic ethers in these mixtures has been analyzed. The results obtained have been compared with analogous data of solvation enthalpy of selected glymes in N,N-dimethylformamide+propan-1-ol mixtures In the experiment, the researchers used 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5COA of Formula: C10H20O5)

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. COA of Formula: C10H20O5

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

The author of 《Analysis of lithium separation by modified zeolite using fuzzy logic: equilibrium, kinetics and thermodynamic》 were Farhadi, Mehraz; Rashidi, Abbas; Mallah, Mohammad Hassan. And the article was published in Desalination and Water Treatment in 2019. Product Details of 33100-27-5 The author mentioned the following in the article:

Modified natural zeolite with crown ethers such as 12crown4, 15crown5, 6crown18 and benzo- 15crown5 have been characterized using Fourier transform infra-red, scanning electron microscope and Brunauer-Emmett-Teller instruments. Concentration of 0.01 mg/L of complexing agent and modification time of 240 h were obtained as optimum parameters. Effective parameters such as pH, adsorbent dose, contact time, type and concentration of crown ethers, ion strength, and initial concentration of lithium ion and temperature of complex formation were also investigated and optimized in this adsorption process. Under the optimized exptl. conditions pH equal to 7, one gram of adsorbent in 2 mL solution of 0.01 mg/L and temperature of 40°C, the most lithium adsorption (87%) was acquired. The effect of interference ions on the adsorption process was also considered. The results showed that Freundlich model is one of the best descriptive models for this process. The adsorption kinetics of lithium on modified zeolite follows the pseudo second-order model. Thermodn. parameters were calculated and shown that adsorption process is an endothermic and spontaneous process. Statistical anal. of exptl. results was done by fuzzy logic tool of MATLAB software and three-dimensional diagrams of different parameters effect on the adsorption percentage were also presented. The experimental process involved the reaction of 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Product Details of 33100-27-5)

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. Product Details of 33100-27-5

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

In 2019,Chinese Journal of Chemical Physics included an article by Yao, Yong-lin; Zhu, Mei-ying; Zhao, Zhuo; Liu, Wen-gang; Tong, Bi-hai; Li, Ming-yang. SDS of cas: 33100-27-5. The article was titled 《Density functional theory study of selectivity of crown ethers to Li+ in spent lithium-ion batteries leaching solutions》. The information in the text is summarized as follows:

It is a challenge to recover lithium from the leaching solution of spent lithium-ion batteries, and crown ethers are potential extractants due to their selectivity to alkali metal ions. The theor. calculations for the selectivity of crown ethers with different structures to Li ions in aqueous solutions were carried out based on the d. functional theory. The calculated results of geometries, binding energies, and thermodn. parameters show that 15C5 has the strongest selectivity to Li ions in the three crown ethers of 12C4, 15C5, and 18C6. B15C5 has a smaller binding energy but more neg. free energy than 15C5 when combined with Li+, leading to that the lithium ions in aqueous solutions will combine with B15C5 rather than 15C5. The exchange reactions between B15C5 and hydrated Li+, Co2+, and Ni2+ were analyzed and the results show that B15C5 is more likely to capture Li+ from the hydrated ions in an aqueous solution containing Li+, Co2+, and Ni2+. This study indicates that it is feasible to extract Li ions selectively using B15C5 as an extractant from the leaching solution of spent lithium-ion batteries. (c) 2019 American Institute of Physics. In the experiment, the researchers used 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5SDS of cas: 33100-27-5)

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. SDS of cas: 33100-27-5

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

The author of 《Farming thermoelectric paper》 were Abol-Fotouh, Deyaa; Dorling, Bernhard; Zapata-Arteaga, Osnat; Rodriguez-Martinez, Xabier; Gomez, Andres; Reparaz, J. Sebastian; Laromaine, Anna; Roig, Anna; Campoy-Quiles, Mariano. And the article was published in Energy & Environmental Science in 2019. Computed Properties of C10H20O5 The author mentioned the following in the article:

Waste heat to electricity conversion using thermoelec. generators is emerging as a key technol. in the forthcoming energy scenario. Carbon-based composites could unleash the as yet untapped potential of thermoelectricity by combining the low cost, easy processability, and low thermal conductivity of biopolymers with the mech. strength and good elec. properties of carbon nanotubes (CNTs). Here we use bacteria in environmentally friendly aqueous media to grow large area bacterial nanocellulose (BC) films with an embedded highly dispersed CNT network. The thick films (≈10μm) exhibit tuneable transparency and color, as well as low thermal and high elec. conductivity Moreover, they are fully bendable, can conformally wrap around heat sources and are stable above 500 K, which expands the range of potential uses compared to typical conducting polymers and composites. The high porosity of the material facilitates effective n-type doping, enabling the fabrication of a thermoelec. module from farmed thermoelec. paper. Because of vertical phase separation of the CNTs in the BC composite, the grown films at the same time serve as both the active layer and separating layer, insulating each thermoelec. leg from the adjacent ones. Last but not least, the BC can be enzymically decomposed, completely reclaiming the embedded CNTs. After reading the article, we found that the author used 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Computed Properties of C10H20O5)

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. Computed Properties of C10H20O5

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

《Hydroxide is not a Promoter of C2+ Product Formation in the Electrochemical Reduction of CO on Copper》 was written by Li, Jing; Wu, Donghuan; Malkani, Arnav S.; Chang, Xiaoxia; Cheng, Mu-Jeng; Xu, Bingjun; Lu, Qi. SDS of cas: 33100-27-5 And the article was included in Angewandte Chemie, International Edition in 2020. The article conveys some information:

Highly alk. electrolytes improve the formation rate of C2+ products in the electrochem. reduction of CO2 (CO2) and CO on Cu surfaces, with the assumption that higher OH- concentrations promote the C-C coupling chem. Herein, by systematically varying the concentration of Na+ and OH- at the same absolute electrode potential, higher concentrations of (Na+), rather than OH-, exert the main promotional effect on the production of C2+ products. The impact of the nature and the concentration of cations on the electrochem. reduction of CO is supported by experiments in which a fraction or all of Na+ is chelated by a crown ether. Chelation of Na+ leads to drastic decrease in the formation rate of C2+ products. The promotional effect of OH- determined at the same potential on the reversible H electrode scale is likely caused by larger overpotentials at higher electrolyte pH. In the experimental materials used by the author, we found 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5SDS of cas: 33100-27-5)

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. SDS of cas: 33100-27-5

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem