Month: November 2022

A novel triazine-bearing calix[4]arene: Design, synthesis and gas sensing affinity for volatile organic compounds was written by Halay, Erkan;Acikbas, Yaser;Capan, Rifat;Bozkurt, Selahattin;Erdogan, Matem;Unal, Ridvan. And the article was included in Tetrahedron in 2019.HPLC of Formula: 2272-40-4 The following contents are mentioned in the article:

A novel triazine-calix[4]arene conjugate was designed and synthesized with the aim to study gas sensing against volatile organic compounds (VOCs) such as dichloromethane, chloroform and carbon tetrachloride. This novel compound was fully characterized by spectroscopic techniques such as FTIR, ¹H and ¹³C NMR along with HRMS and BET anal. The triazine based calix[4]arene organic materials were fabricated onto quartz glasses and quartz crystal substrates to form a thin film chem. sensor element by using Langmuir-Blodgett (LB) technique. Quartz Crystal Microbalance, UV-Visible Spectroscopy, Atomic Force Microscopy and SEM techniques were employed to characterize all these LB thin film layers. Fick’s Equations were used for analyzing the swelling process of LB thin film sensor and diffusion coefficient values of organic vapors for swelling were obtained. The initial experiments revealed that new triazine appended calix[4]arene derivative exhibited an effective chem. gas sensor characteristic with a large response to dichloromethane vapor. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4HPLC of Formula: 2272-40-4).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) 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. 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: 2272-40-4

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

Deposition of Pd on Co(OH)₂ nanoplates in stabilizer-free aqueous phase for catalytic reduction of 4-nitrophenol was written by Tang, Zeng-min;Zhang, Ling;Du, Jing-jing;Xu, Li-jian. And the article was included in Transactions of Nonferrous Metals Society of China in 2022.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

Palladium-supported cobalt hydroxide (Co(OH)₂-Pd) nanoplates were fabricated in an aqueous solution and employed as a catalyst for the reduction of 4-nitrophenol. For the preparation of Co(OH)₂-Pd, Pd nanoparticles were anchored on the Co(OH)₂ nanoplates after the reduction of Na₂PdCl₄ by ascorbic acid in the absence of a stabilizer at room temperature The observations under transmission and SEM reveal that Pd nanoparticles with a size of 2-5 nm are uniformly dispersed on the surface of the Co(OH)₂ nanoplates. In catalytic test, the conversion of 4-nitrophenol to 4-aminophenol is completed within 6 min in the presence of Co(OH)₂-Pd(1000) nanoplates with 2.18 at.% Pd, and the corresponding kinetic constant is 0.0089 s-1 in the first test. The catalyst retains relatively high activity after several cycles. The results demonstrate that the Co(OH)₂-Pd(1000) nanoplates exhibit high catalytic activity toward the reduction of 4-nitrophenol in the presence of NaBH₄. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Category: chlorides-buliding-blocks).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. 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 effects of N1 substituents on the 2-methylimidazolium functionalized polynorbornene alkaline anion exchange membranes was written by Huang, Shengmei;He, Xiaohui;Guo, Yan;Chen, Defu. And the article was included in Polymer in 2020.Related Products of 6294-17-3 The following contents are mentioned in the article:

The N1-substituted (Me, iso-Pr, Bu, benzyl or dodecyl) 2-methylimidazolium functionalized polynorbornene (rPNB-RMIm-30) AEMs are prepared and the effects of substituents are studied. The N1-Bu or isopropyl-substituted 2-methylimidzolium (rPNB-BuMIm-30 or rPNB-iPrMIm-30) anion exchange membrane (AEM) reveals much better alk. durability than that of Me, benzyl and dodecyl-substituted 2-methylimidazolium-based AEMs, reflected by the almost unaltered FT-IR spectra and TGA curves after being subjected to 1 M NaOH for 720 h at 60°C, with a conductivity degradation of 17% and 14% resp. Furthermore, a highest hydroxide conductivity (51.5 mS cm^-1, 80°C) is achieved of the rPNB-BuMIm-30 AEM, attributing to its well-defined phase-separated structure, as evidenced by results of at. force microscope (AFM) and X-ray scattering (SAXS). Membrane electrode assembly (MEA) with rPNB-BuMIm-30 AEM exhibits a peak power d. of 205 mWcm^-2 at 60°C. This study paves the way of N1-Substituented 2-methylimidazolium-based AEM for fuel cells practical application. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Related Products of 6294-17-3).

1-Bromo-6-chlorohexane (cas: 6294-17-3) 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. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Related Products of 6294-17-3

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

Ditopic pyridyl-benzothiazole – Pyridylmethylene-2-thiohydantoin conjugates: Synthesis and study in complexation with CuCl₂ was written by Chorbu, Alexander A.;Barskaya, Elena S.;Moiseeva, Anna A.;Guk, Dmitry A.;Krasnovskaya, Olga O.;Lyssenko, Konstantin A.;Rzheutski, Artem V.;Abramovich, Maksim S.;Polyakova, Margarita N.;Berezina, Anna V.;Zyk, Nikolai V.;Beloglazkina, Elena K.. And the article was included in Polyhedron in 2022.Formula: C6H12BrCl The following contents are mentioned in the article:

New ditopic ligands (L) consisting of 2-(2-pyridyl)benzothiazole and 5-pyridylmethylene-2-thioimidazol-4-one moieties linked with polymethylene chains of various lengths (compounds 4) or triazole-containing linker (compounds 9, 11) were synthesized and their coordination properties in the reactions with CuCl₂ were studied. All the obtained copper complexes had the LCuCl₂ composition Ligands 4 with polymethylene linkers coordinate CuCl₂ initially at the 5-pyridylmethylene-2-thioimidazolone moiety, but then copper chloride migrates to the 2-pyridylbenzothiazole fragment. In contrast, ligands 9, 11 with the triazole-containing linkers coordinate CuCl₂ at 5-pyridylmethylene-2-thio-imidazolone and triazole fragments, and then the structure of the complex in the solution does not change. In DMF, the initially formed Cu²⁺ complexes may be reduced to Cu¹⁺ compounds, based on electrochem. study data. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Formula: C6H12BrCl).

1-Bromo-6-chlorohexane (cas: 6294-17-3) 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.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Formula: C6H12BrCl

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

A benzo[b]xanthene-derived fluorescent probe capable of two-photon ratiometric imaging of lysosomal cysteine with high specificity was written by Tamima, Umme;Song, Chang Wook;Santra, Mithun;Reo, Ye Jin;Banna, Hasanul;Islam, Reyazul Md;Ahn, Kyo Han. And the article was included in Sensors and Actuators, B: Chemical in 2020.Quality Control of 4-Chlororesorcinol The following contents are mentioned in the article:

Cysteine, an important biothiol, is associated with diverse biol. processes, demanding efficient in vivo detection probes. Accordingly, various types of fluorescent probes have been reported so far, but still those with practical applicability are in demand. One of the challenges is how to minimize interference from other biomols. We disclose the benzoxanthene-based fluorescent probe that shows excellent substrate selectivity, and, furthermore, good ratiometric and two-photon imaging properties. The probe, which is also photostable and biocompatible, senses cysteine through very fast 1,6-conjugate addition to the benzoxanthene core, a new dipolar dye system that emits in the deep-red wavelength region. The probe enables reliable two-photon ratiometric imaging of the endogenous lysosomal cysteine. The cysteine adduct can be reverted to the probe by hydrogen peroxide most effectively among several reactive oxygen species both in solution as well as in cell. An application of the probe to quantify the cysteine level in human blood plasma is also demonstrated. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Quality Control of 4-Chlororesorcinol).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Quality Control of 4-Chlororesorcinol

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

Reductive dehalogenation and dehalogenative sulfonation of phenols and heteroaromatics with sodium sulfite in an aqueous medium was written by Tomanova, Monika;Jedinak, Lukas;Cankar, Petr. And the article was included in Green Chemistry in 2019.Formula: C6H5ClO2 The following contents are mentioned in the article:

Prototropic tautomerism was used as a tool for the reductive dehalogenation of (hetero)aryl bromides and iodides, or dehalogenative sulfonation of (hetero)aryl chlorides and fluorides, using sodium sulfite as the sole reagent in an aqueous medium. This protocol does not require a metal or phase transfer catalyst and avoids using organic solvent as the reaction medium. This method is especially suitable for substrates that readily tautomerize (such as 2- or 4-halogenated aminophenols and 4-halogenated resorcinols), for which dehalogenation or sulfonation proceeds under mild reaction conditions (</= 60°). As sodium sulfite is an inexpensive, safe, and environmentally less hazardous reagent, this method has at least three potential applications: (i) in the deprotection of halogens as protecting groups, using sodium sulfite as a reducing agent; (ii) in the sulfonation of aromatic halides under mild reaction conditions avoiding hazardous and corrosive reagents/solvents; and (iii) in the transformation of toxic halogenated aromatics into less harmful compounds This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Formula: C6H5ClO2).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Formula: C6H5ClO2

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

Experimental and modeling investigation of organic modified montmorillonite with octyl quaternary ammonium salt was written by Liu, Hongyan;Guo, Chengxin;Cui, Yingna;Yin, Jingmei;Li, Shenmin. And the article was included in Scientific Reports in 2022.Electric Literature of C25H54ClN The following contents are mentioned in the article:

The sodium montmorillonite was organic modified with three kinds of quaternary ammonium salts containing 1 to 3 octyl chains, and then the organic montmorillonite was studied by FT-IR, XRD, and TG characterization as well as Monte Carlo simulations, to explore the influence of the number of octyl chains and the loading of intercalated cations on the basal spacing (d001) of the modified montmorillonite complexes. According to the distribution of intercalated quaternary ammonium cations and the energy change of the montmorillonite complexes, a reasonable explanation was given for the enlargement of the interlayer space. The results of exptl. characterization and Monte Carlo simulations show that all the three intercalation agents can enlarge the interlayer space of montmorillonite complexes. The more the number of octyl chains in the salt, the more significant expanding effect on the interlayer space. The three intercalation cations exhibited a distribution arranged from mono-layered to multi-layered structure as the loading of intercalated cations increases. 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. 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. 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).Electric Literature of C25H54ClN

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

Trialkylmethylammonium molybdate ionic liquids as novel oil-soluble precursors of dispersed metal catalysts for slurry-phase hydrocracking of heavy oils was written by Ma, Yongde;Zhang, Jiayin;Wu, Wenquan;Cai, Zhenping;Cao, Yanning;Huang, Kuan;Jiang, Lilong. And the article was included in Chemical Engineering Science in 2022.Product Details of 5137-55-3 The following contents are mentioned in the article:

Slurry-phase hydrocracking is an effective technol. for the conversion of heavy oils to clean and light fuels. Herein, trialkylmethylammonium molybdate ionic liquids (ILs) with multiple long-chain alkyl groups were designed, and applied as the oil-soluble precursors of dispersed metal catalysts for slurry-phase hydrocracking. The molybdate ILs were synthesized through a two- or three-step route from readily available reagents under mild conditions. The chem. structure and sulfidation behavior of molybdate ILs were characterized first. The performance of molybdate ILs for hydrogenation was then evaluated with phenanthrene as the model compound The dispersed MoS2 catalysts in-situ produced in the model system were isolated and characterized to explain the different performance of oil-soluble precursors. The performance of molybdate ILs for slurry-phase hydrocracking of heavy oils was finally investigated. To figure out the favored routes for the conversion of heavy oils, the reaction rate constants were also calculated based on an established kinetical model. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Product Details of 5137-55-3).

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.Product Details of 5137-55-3

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

Assessment of COSMO-SAC Predictions for Solid-Liquid Equilibrium in Binary Eutectic Systems was written by Peng, Daili;Alhadid, Ahmad;Minceva, Mirjana. And the article was included in Industrial & Engineering Chemistry Research in 2022.Safety of Tetramethylammonium chloride The following contents are mentioned in the article:

As green and sustainable solvents, deep eutectic solvents (DESs) have received wide attention in various fields. Predictions of solid-liquid equilibrium (SLE) make it easier to choose DES constituents from a large pool of potential compounds The conductor-like screening model for segment activity coefficient (COSMO-SAC) predictions for the SLE of 94 nonsalt and 122 salt-based binary eutectic systems was evaluated in this study. It was found that the COSMO-SAC model can provide satisfactory predictions for the eutectic point of most nonsalt eutectic systems. Similar results were obtained when using the ideal solution model. The salt was represented in salt-based eutectic systems using one of two methods: as an ion pair or as fully dissociated ions. COSMO-SAC predictions for salt-based eutectic systems were unsatisfactory regardless of the salt representation method used. This inaccuracy in predicting SLE in the salt-based eutectic systems is not only due to model limitations but also due to the lack of reliable melting properties for thermally unstable salts. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Safety of Tetramethylammonium chloride).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Safety of Tetramethylammonium chloride

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

Simulating intergrowth formation in zeolite crystals: impact on habit and functionality was written by Trueman, Mollie;Akporiaye, Duncan;Anderson, Michael W.. And the article was included in Faraday Discussions in 2021.SDS of cas: 75-57-0 The following contents are mentioned in the article:

A kinetic Monte-Carlo methodol. is presented for simulating crystal growth in materials which contain stacking faults. By simulating a large number of potential growth and dissolution events, a representation of the crystal is generated at various stages throughout the crystallization, allowing the effects of disorder on the evolution of crystal habit and nanoscale surface topog. to be explored. As examples, simulations were performed on two intergrown zeolite materials – zeolite T and zeolite beta. In both zeolite T and zeolite beta, simulations demonstrate how an intergrown structure leads to a characteristic roughening of certain crystal facets. In zeolite beta, this is accompanied by the development of internal defects which shows a non-homogeneous distribution. Results of simulations are validated by direct comparison to exptl. SEM, at. force microscopy and X-ray diffraction data. All simulations are performed using the CrystalGrower software package with modifications to account for disorder and should be generally applicable to all classes of crystals. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0SDS of cas: 75-57-0).

Tetramethylammonium chloride (cas: 75-57-0) 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.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.SDS of cas: 75-57-0

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