Month: November 2022

Determination of Benzyl-hexadecyldimethylammonium 1,4-Bis(2-ethylhexyl)sulfosuccinate Vesicle Permeability by Using Square Wave Voltammetry and an Enzymatic Reaction was written by Cobo Solis, Airam K.;Correa, N. Mariano;Molina, Patricia G.. And the article was included in Langmuir in 2017.HPLC of Formula: 122-18-9 The following contents are mentioned in the article:

This report describes the studies performed to determine the permeability coefficient value (P) of 1-naphthyl phosphate (1-NP) through the benzyl-hexadecyldimethylammonium 1,4-bis(2-ethylhexyl)sulfosuccinate (AOT-BHD) vesicle bilayer. 1-NP was added in the external phase and must cross the bilayer of the vesicle to react with the encapsulated enzyme (alk. phosphatase) to yield 1-naphtholate (NPh^–), the product of the enzymic hydrolysis. This product is electrochem. detected, at basic pH value, by a square wave voltammetry technique, which can be a good alternative over the spectroscopic one, to measure the vesicle solutions because scattering (due to its turbidity) does not have any influence in the electrochem. signal. The exptl. data allow the authors to propose a math. model, and a value of P = (1.00 ± 0.15) × 10^-9 cm s^-1 was obtained. Also, a value of P = (2.0 ± 0.5) × 10^-9 cm s^-1 was found by using an independent technique, UV-visible spectroscopy, for comparison. It is evident that the P values obtained from both the techniques are comparable (within the exptl. error of both techniques) under the same exptl. conditions. This study constitutes the first report of the 1-NP permeability determination in this new vesicle. The authors want to highlight the importance of the introduction of a new method and the electrochem. response of the product generated through an enzymic reaction that occurs in the inner aqueous phase of the vesicle, where the enzyme is placed. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9HPLC of Formula: 122-18-9).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).HPLC of Formula: 122-18-9

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Kinetic study on extraction of metal-cyanide complex ions by the N263-TBP system was written by Song, Yonghui;Li, Yifan;Zhang, Hongju;Zhou, Min;Liu, Gang. And the article was included in Journal of Molecular Liquids in 2022.Formula: C25H54ClN The following contents are mentioned in the article:

In this study, the extraction of metal-cyanide complex ions in gold-leaching, cyanide-containing wastewater by a trioctylmethylammonium chloride (N263)-tri-Bu phosphate (TBP)-n-octanol-sulfonated kerosene system was investigated. The effects of N263 and TBP concentrations, the aqueous phase pH, and phase ratio (O/A) on the extraction were investigated by adopting the response surface methodol., and the operating parameters were optimized. The optimal solution was obtained by solving the model optimally. A Cu ion concentration of 3,000 mg/L, an N263 concentration of 0.459 mol/L, a TBP concentration of 0.214 mol/L, an initial pH of the aqueous phase of 10.064, and O/A of 0.900 were determined to be optimal for realizing an extraction yield of 99%. The effects of column height, oil droplet volume, metal ion concentration, N263 and TBP concentrations, and temperature on the mass transfer rate were investigated using the single droplet method. Kinetic studies showed that the kinetic equation for the extraction system was Rf (Mass transfer rate) = 1.57 x 10^-4·CCu·CTBP·CN263. The apparent activation energy of Cu(I) was 15.186 kJ/mol. The extraction process was controlled by the diffusion process. Furthermore, the chem. reaction occurred at the two-phase interface, where the copper cyanide complex ions preferentially bound to TBP at the interface between the two phases, and the bound anion cluster then reacted with the N263 cation to form the extractive complex, which then entered the organic phase from the interface. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Formula: C25H54ClN).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Formula: C25H54ClN

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Reconfigurable Polymer Shells on Shape-Anisotropic Gold Nanoparticle Cores was written by Kim, Juyeong;Song, Xiaohui;Kim, Ahyoung;Luo, Binbin;Smith, John W.;Ou, Zihao;Wu, Zixuan;Chen, Qian. And the article was included in Macromolecular Rapid Communications in 2018.Application of 122-18-9 The following contents are mentioned in the article:

Reconfigurable hybrid nanoparticles made by decorating flexible polymer shells on rigid inorganic nanoparticle cores can provide a unique means to build stimuli-responsive functional materials. The polymer shell reconfiguration has been expected to depend on the local core shape details, but limited systematic investigations have been undertaken. Here, two literature methods are adapted to coat either thiol-terminated polystyrene (PS) or polystyrene-poly(acrylic acid) (PS-b-PAA) shells onto a series of anisotropic gold nanoparticles of shapes not studied previously, including octahedron, concave cube, and bipyramid. These core shapes are complex, rendering shell contours with nanoscale details (e.g., local surface curvature, shell thickness) that are imaged and analyzed quant. using the authors’ customized anal. codes. It is found that the hybrid nanoparticles based on the chosen core shapes, when coated with the above two polymer shells, exhibit distinct shell segregations upon a variation in solvent polarity or temperature It is demonstrated for the PS-b-PAA-coated hybrid nanoparticles, the shell segregation is maintained even after a further decoration of the shell periphery with gold seeds; these seeds can potentially facilitate subsequent deposition of other nanostructures to enrich structural and functional diversity. These synthesis, imaging, and anal. methods for the hybrid nanoparticles of anisotropically shaped cores can potentially aid in their predictive design for materials reconfigurable from the bottom up. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Application of 122-18-9).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Application of 122-18-9

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Polarized Helical Coumarins: [1,5] Sigmatropic Rearrangement and Excited-State Intramolecular Proton Transfer was written by Kielesinski, Lukasz;Morawski, Olaf W.;Barboza, Cristina A.;Gryko, Daniel T.. And the article was included in Journal of Organic Chemistry in 2021.Safety of 4-Chlororesorcinol The following contents are mentioned in the article:

The tandem process of phenol addition to a cyclic α,β-unsaturated ester followed by intramol. transesterification and [1,5] sigmatropic rearrangement affords a series of helical coumarins based upon a previously unknown 3-amino-7-hydroxybenzo[3,4]cyclohepta[1,2-c]chromen-6-one core. These novel polarized coumarins, possessing a β-ketoester moiety, have been employed to synthesize more rigid and helical coumarin-pyrazolones, which display green fluorescence. The enhanced emission of coumarin-pyrazolones in polar solvents depends on the nature of the S₁ state. The coumarin-pyrazolones are predicted to have two vertical states close in energy: a weakly absorbing S₁ (¹LE) followed by a bright S₂ state (¹CT). In polar solvents, the ¹CT can be stabilized below the ¹LE and may become the fluorescent state. Solvatochromism of the fluorescence spectra confirms this theor. prediction. The presence of an N-H···O=C intramol. hydrogen bond in these coumarin-pyrazolone hybrids facilitates excited-state intramol. proton transfer (ESIPT). This process leads to a barrierless conical intersection with the ground electronic state and opens a radiationless deactivation channel effectively competing with fluorescence. Solvent stabilization of the CT state increases the barrier for ESIPT and decreases the efficiency of the nonradiative channel. This results in the observed correlation between solvatochromism and an increase of fluorescence intensity in polar solvents. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Safety of 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Safety of 4-Chlororesorcinol

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Bond strength of conventional, subtractive, and additive manufactured denture bases to soft and hard relining materials was written by Wemken, Gregor;Burkhardt, Felix;Spies, Benedikt Christopher;Kleinvogel, Laura;Adali, Ufuk;Sterzenbach, Guido;Beuer, Florian;Wesemann, Christian. And the article was included in Dental Materials in 2021.Application of 5137-55-3 The following contents are mentioned in the article:

To investigate the tensile and flexural strength of poured, subtractive, and additive manufactured denture base methacrylates bonded to soft and hard relining materials after hydrothermal cycling and microwave irradiation This study included a conventional (CB), subtractive (SB), and additive (AB) base material as well as a soft (SCR) and hard (HCR) chairside and one hard laboratory-side (HLR) relining material. Reference bodies of the base materials and bonded specimens to the relining materials were produced with a rectangular cross-section. The specimens were either pre-treated by water storage (50 h, 37 °C), hydrothermal cycling (5000 cycles, 5 °C and 55 °C, 30 s each), or microwave irradiation (6 cycles, 640 W, 3 min, wet). A tensile and four-point bending test were performed for a total of 504 specimens. Data were analyzed using multivariate anal. of variance (MANOVA) with post-hoc Tukey tests (α = 0.05). In comparison with the other reference groups SB showed marginally higher tensile and flexural strength (p < 0.047). Bond strength to SCR was affected neither by the base material nor by the pre-treatment (p > 0.085). HCR demonstrated twice the bond strength to AB compared with SB and CB (p ≤ 0.001). HLR showed the highest bond strength to CB (p ≤ 0.001). There was no difference between the specimens after hydrothermally cycling and microwave irradiation (p > 0.318). The bond strength of hard relining materials to subtractive and additive manufactured denture bases differ compared with conventional pouring. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Application of 5137-55-3).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Application of 5137-55-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthesis, structure, and electrochemical properties of [LNi(R_f)(C₄F₈)]^– and [LNi(R_f)₃]^– complexes was written by Shreiber, Scott T.;Amin, Fatema;Schafer, Sascha A.;Cramer, Roger E.;Klein, Axel;Vicic, David A.. And the article was included in Dalton Transactions in 2022.Quality Control of Tetramethylammonium chloride The following contents are mentioned in the article:

The new anionic nickelate complexes [(MeCN)Ni(C₄F₈)(CF₃)]^–, [(MeCN)Ni(C₄F₈)(C₂F₅)]^–, [(IMes)Ni(C₄F₈)(CF₃)]^–, [(IMes)Ni(CF₃)₃]^– (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene), and [(F-NHC)Ni(R_f)₃]^– (F-NHC = 1,3-bis(2,4-F₂Ph), 2,4,6-F₃Ph- or 3,4,5-F₃Ph)imidazol-2-ylidene; (R_f = CF₃ or C₂F₅) were synthesized and structurally characterized. The electrochem. properties of all new compounds were revealed by cyclic voltammetry studies and compared to the known CF₃ analog [(MeCN)Ni(CF₃)₃]^–. The IMes-coordinated complexes exhibited initial oxidation events that were well-separated from a second oxidation process in the cyclic voltammograms. The complexes containing F-substituted NHC ligands [(F-NHC)Ni(CF₃)₃]^– are structurally quite similar to the IMes derivative and reveal also two separated oxidation waves in their cyclic voltammograms. The absolute potentials as well as the separation between the two waves vary with the substitution pattern, suggesting that the NHC ligand environment (NHC = N-heterocyclic carbene) is an interesting platform for the development of new redox-triggered reactions that release trifluoromethyl and perfluoroalkyl radicals upon oxidation This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Quality Control of Tetramethylammonium chloride).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Quality Control of Tetramethylammonium chloride

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Highly efficient selective extraction of Mo with novel hydrophobic deep eutectic solvents was written by Zhang, Menglei;Song, Hao;Zheng, Chenghang;Liu, Shaojun;Lin, Zhenglong;Liu, Yi;Wu, Weihong;Gao, Xiang. And the article was included in Journal of the Air & Waste Management Association in 2021.Electric Literature of C25H54ClN The following contents are mentioned in the article:

Recycling of valuable metals from spent catalysts in a green way is gaining extensive interest for economic and environment reasons. In this study, we developed novel hydrophobic deep eutectic solvents to extract Mo from spent catalysts. The hydrophobic DESs have been designed and synthesized by mixing one molar of the quaternary ammonium salt and two molars of various saturated fatty acids with different carbon chain lengths. The extraction ability and extraction mechanism of these DESs were studied, some factors influencing the extraction efficiency, including the structure of hydrogen bond acceptors and hydrogen bond donors, initial aqueous pH, reaction time and temperature, phase ratios were investigated. It is found that the synthesized hydrophobic DESs exhibit excellent extraction performance toward Mo, where the Mo distribution ratio is more than 2200 in the presence of other metals, corresponding to an extraction efficiency of 99% at optimal reaction conditions. This work reveals a distinct class of materials, guiding an effective and green way for spent catalyst treatment. Implications: Novel hydrophobic deep eutectic solvents have been developed to extract Mo from spent catalysts, the synthesized hydrophobic DESs possess several advantages, such as green, low price, low toxicity, and biodegradability. It exhibits excellent extraction performance under an optimized extraction condition. This work reveals a distinct class of materials, guiding a promising way for green and economical utilization of spent catalysts. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Electric Literature of C25H54ClN).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Electric Literature of C25H54ClN

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthesis of tetraazacalix[2]arene[2]triazine-containing poly(dimethylsiloxane) with elastic property induced by pinning effect of the calixarene ring was written by Shibata, Ryota;Ishihara, Tsutomu;Tsukamoto, Tadashi;Oishi, Yoshiyuki;Fujimori, Atsuhiro;Shibasaki, Yuji. And the article was included in European Polymer Journal in 2022.Product Details of 2272-40-4 The following contents are mentioned in the article:

Tetraazacalix[2]arene[2]triazine dichloride was polymerized with telechelic poly(dimethylsiloxane)s having NH₂ terminals (PDMS_x; d.p. x = 8, 18, 38) via solution polycondensation to give the corresponding azacalixarene-containing polymers (ACAT-PDMS_x) in good yield. The fraction of the hard ACAT moiety (fHS) of the ACAT-PDMS polymers was calculated to be 33.0%, 20.4%, and 11.6% for x of 8, 18, and 38, resp. The number-average mol. weight (Mn) of the polymers ranged from 20 to 32 kDa, and freestanding tough films were successfully fabricated via solvent cast method. As a control sample, a polymer not containing azacalixarene (AnDCT-PDMS) with Mn and fHS values of 21 kDa and 19.8%, resp., was prepared via the solution polymerization of 2-anilino-4,6-dichloro-1,3,5-triazine (AnDCT) with PDMS8. Although the fHS values of AnDCT-PDMS₈ and ACAT-PDMS₁₈ were similar, the film obtained from the former polymer was much softer and sticky at room temperature than that from the latter. The glass transition temperature of the ACAT-PDMS_x films ranged from 77°C to 105°C according to thermomech. and dynamic mech. analyses. Wide-angle X-ray diffraction and polarized optical microscopy studies indicated that the azacalixarene units were first locally aggregated via multiple hydrogen bonds within the ACAT-PDMSx films and then were well dispersed in the film on heating. The ACAT-PDMS polymer showed no cytotoxicity to HeLa and IMR-90 cells in the exptl. concentration of below 100μg/mL. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Product Details of 2272-40-4).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Product Details of 2272-40-4

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthesis and characterization of low-temperature lithium-ion conductive phase of LiX (X = Cl, Br)-Li₃PS₄ solid electrolytes was written by Tsujimura, Tomoyuki;Ito, Seitaro;Yoshida, Koji;Higashiyama, Yuki;Aihara, Yuichi;Machida, Nobuya;Park, Youngsin;Im, Dongmin. And the article was included in Solid State Ionics in 2022.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

A new class of sulfide electrolytes, (1-x)LiCl-xLiBr-2Li₃PS4 (x = 0, 0.25, 0.50, 0.75, and 1.0), was synthesized, and characterized their stable temperature range, ionic-conductivity and applicability for all-solid-state lithium metal battery. The optimal heat-treatment temperature of the synthesis process is relatively low, i.e., 200 °C. Ionic conductivity of the electrolyte increases with increasing LiBr ratio, and maximum ionic conductivity at 25 °C is 1.7 mScm^-1 with x = 0.75. At higher heat-treatment temperature, above 250 °C, a low-ionic-conduction crystalline phase appears in the electrolyte, and at that time, ionic conductivity decreases to a similar value to that of the amorphous precursor used in the synthesis process. Since the electrolyte does not contain a transition metal, it is applicable to the lithium-metal secondary system. A reversible lithium deposition-stripping reaction was demonstrated by cyclic voltammogram, the results of which indicate that the electrolyte is applicable to a typical 4-V rechargeable lithium-metal secondary system. The Coulombic efficiency of the first charge-discharge cycle is approx. 75%, and reversible capacity of 185 mAhg-1 was verified by a Li/0.25LiCl-0.75LiBr-2Li₃PS₄/NCA pelletized-cell test. It is concluded from these results that the proposed low-temperature-synthesized sulfide electrolytes will reduce energy consumption for material production, and such a low-carbon-footprint process meets the demand of the future sustainable society. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Category: chlorides-buliding-blocks).

Lithium chloride (cas: 7447-41-8) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Category: chlorides-buliding-blocks

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Tuning the ¹H NMR paramagnetic relaxation enhancement and local order of [Aliquat]⁺-based systems mixed with DMSO was written by Cordeiro, Rui;Beira, Maria J.;Cruz, Carlos;Figueirinhas, Joao L.;Corvo, Marta C.;Almeida, Pedro L.;Rosatella, Andreia A.;Afonso, Carlos A. M.;Daniel, Carla I.;Sebastiao, Pedro J.. And the article was included in International Journal of Molecular Sciences in 2021.COA of Formula: C25H54ClN The following contents are mentioned in the article:

Understanding the behavior of a chem. compound at a mol. level is fundamental, not only to explain its macroscopic properties, but also to enable the control and optimization of these properties. The present work aims to characterize a set of systems based on the ionic liquids [Aliquat][Cl] and [Aliquat][FeCl₄] and on mixtures of these with different concentrations of DMSO by means of ¹H NMR relaxometry, diffusometry and X-ray diffractometry. Without DMSO, the compounds reveal locally ordered domains, which are large enough to induce order fluctuation as a significant relaxation pathway, and present paramagnetic relaxation enhancement for the [Aliquat][Cl] and [Aliquat][FeCl₄] mixture The addition of DMSO provides a way of tuning both the local order of these systems and the relaxation enhancement produced by the tetrachloroferrate anion. Very small DMSO volume concentrations (at least up to 1%) lead to enhanced paramagnetic relaxation without compromising the locally ordered domains. Larger DMSO concentrations gradually destroy these domains and reduce the effect of paramagnetic relaxation, while solvating the ions present in the mixtures The paramagnetic relaxation was explained as a correlated combination of inner and outer-sphere mechanisms, in line with the size and structure differences between cation and anion. This study presents a robust method of characterizing paramagnetic ionic systems and obtaining a consistent anal. for a large set of samples having different co-solvent concentrations This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3COA of Formula: C25H54ClN).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.COA of Formula: C25H54ClN

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics