Month: November 2022

Metal Coordination Properties of a Chromophoric Desferrioxamine (DFO) Derivative: Insight on the Coordination Stoichiometry and Thermodynamic Stability of Zr⁴⁺ Complexes was written by Savastano, Matteo;Boscaro, Francesca;Bianchi, Antonio. And the article was included in Molecules in 2022.Computed Properties of C4H12ClN The following contents are mentioned in the article:

Desferrioxamine (DFO) is the current “gold standard” chelator for ⁸⁹Zr⁴⁺, which is used to label monoclonal antibodies for applications in immunopositron emission tomog. Recently, controversial data have been reported regarding the speciation and the stability of the complexes formed by DFO with Zr⁴⁺ in solution To shed some light on this point, we studied the coordination properties in solution ofa chromophoric DFO derivative bearing a substituted pyrimidine residue (DFO-Pm) toward several metal ions (Zr⁴⁺, Cu²⁺, Zn²⁺, Mg²⁺, Ca²⁺, Na⁺, K⁺). Potentiometric titrations showed that DFO-Pm and pristine DFO form complexes with very similar stoichiometry and stability. DFO-Pm, which can consequently be taken as a model system for DFO, provides a photochem. response to metal coordination that can be used to further define the complexes formed. In the critical case of Zr⁴⁺, spectrophotometric measurements allowed the verification of the formation of 1:1 and 2:3 complexes that, together with 2:2 complexes form the coordination model that was obtained through the use of our potentiometric measurements. Addnl., mass spectrometry measurements verified the formation of 1:1 and 2:3 complexes and showed that 1:2 species can be easily generated through the fragmentation of the 2:3 species. In conclusion, the results obtained with DFO-Pm validate the complexation model of Zr⁴⁺/DFO composed of 1:1, 2:2, and 2:3 metal-to-ligand complexes. Convergences and conflicts with other works are addressed. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Computed Properties of C4H12ClN).

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. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Computed Properties of C4H12ClN

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

Interaction between tetradecyltrimethylammonium bromide and benzyldimethylhexadecylammonium chloride in aqueous/urea solution at various temperatures: An experimental and theoretical investigation was written by Molla, Mohammad Robel;Abdul Rub, Malik;Ahmed, Anwar;Hoque, Anamul Md.. And the article was included in Journal of Molecular Liquids in 2017.Formula: C25H46ClN The following contents are mentioned in the article:

The mixed micelle formation between tetradecyltrimethylammonium bromide (TTAB) and benzyldimethylhexadecylammonium chloride (BDHAC) has been investigated in the absence as well as attendance of urea using conductivity technique. The evaluated values were examined in accordance with Rubingh model. The obtained values of critical micelle concentration (cmc) were smaller than cmc^id values suggesting attractive interactions between the constituents of solution The micellar mole fractions (X^Rub₁) of BDHAC, estimated by Rubingh model, were always higher than their ideal values (X^id₁) suggesting the high contributions of BDHAC in mixtures of TTAB and BDHAC. Interaction parameter (β) value was found to be neg. showing an attractive interaction between the studied components. Activity coefficients (f^Rub₁ and f^Rub₂) were always smaller than one in all cases and it indicates the attractive interaction between TTAB and BDHAC. The values of ΔG^o_m are found to be neg. in all the cases which indicate the spontaneous formation of micelle. The values of ΔH⁰_m are neg. in all cases indicating the exothermic process. The values of ΔS⁰_m are pos. in case of aqueous medium and 500 mmol·kg^– 1 urea solutions but found to be neg. in attendance of 1000 mmol·kg^– 1 urea. The values of excess free energy of micellization (ΔG^Rub_ex) were also estimated and achieved to be neg. showing the stability of mixed micelles. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Formula: C25H46ClN).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators.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: C25H46ClN

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

Fabrication of Polydiacetylene Liposome Chemosensor with Enhanced Fluorescent Self-Amplification and Its Application for Selective Detection of Cationic Surfactants was written by Wang, Dong-En;Zhao, Lei;Yuan, Mao-Sen;Chen, Shu-Wei;Li, Tianbao;Wang, Jinyi. And the article was included in ACS Applied Materials & Interfaces in 2016.HPLC of Formula: 122-18-9 The following contents are mentioned in the article:

Polydiacetylene (PDA) materials have been adopted as one of the powerful conjugated polymers for sensing applications due to their unique optical properties. In this paper, we present a new PDA liposome-based sensor system with enhanced fluorescent self-amplification by tuning a fluorophore fluorescence emission. In this system, a 1,8-naphthalimide derivative employed as a highly fluorescent fluorophore was incorporated into a PDA supermol. During the formation of blue PDA liposomes, the fluorescence emission of the fluorophore can be directly quenched, while thermal-induced phase transition of PDA liposomes from blue to red can readily restore this fluorescence emission. These phenomena could be ascribed to the tunable Forster energy transfer between the excited fluorophore and PDA conjugated framework. To demonstrate the sensing performance of this newly prepared PDA liposome-based sensor, the sensor with fluorescent self-amplification was successfully applied for the detection of cationic surfactants (CS). The results show that the PDA liposomes displayed a distinct color change and fluorescence restoration in the presence of cationic surfactant species, and allowed detection of cationic surfactants with high sensitivity and selectivity. The limit of detection for target CS, such as cetyltrimethylammonium bromide (CTAB), can reach as low as 184 nM. Compared to the traditional methods based on colorimetric PDA liposomes, this newly fabricated PDA sensor system was superior for sensitivity. Thus, our findings offer an avenue for the design and development of new types of PDA sensors with enhanced sensitivity. 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. 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. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.HPLC of Formula: 122-18-9

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

Growth of gold nanorods synthesized by seed-mediated method: Tracking reaction by time-resolved x-ray absorption near-edge structure, small-angle x-ray scattering, and UV-visible spectroscopy was written by Hatakeyama, Yoshikiyo;Sasaki, Koh;Judai, Ken;Nishikawa, Keiko;Hino, Kazuyuki. And the article was included in Journal of Physical Chemistry C in 2018.SDS of cas: 122-18-9 The following contents are mentioned in the article:

Gold nanorods (GNRs) are attractive and important nanomaterials that show enormous promise for a wide range of applications. To investigate the formation process of GNRs generated by the seed-mediated method, we tracked the growth of GNRs with aspect ratios of 2 (GNR2s), 4 (GNR4s), and 6 (GNR6s) using time-resolved X-ray absorption near-edge structure (XANES). Moreover, for GNR6s, addnl. measurements by small-angle X-ray scattering and UV-visible spectroscopy were carried out for longer reaction times of up to 20 000 s. Cetyltrimethylammonium bromide (CTAB) was used as the surfactant in the generation of GNR2s and GNR4s, whereas benzyldimethylhexadecylammonium chloride (BDAC) and CTAB were used for GNR6s. The three anal. methods used provided consistent and compensatory results. It was found that GNR2s and GNR4s finish growing by 2000 s, consuming all the Au in the solutions, and that GNR6s keeps growing for more than 20 000 s by a different formation process. From these comprehensive results, it was revealed that severe competition for existence among the GNRs occurs in all solutions The seed particles added to the solutions of GNR2s and GNR4s start growing but the whole seed particles cannot mature into GNRs. Conversely, in the solution for GNR6s, some of the already-grown GNRs release Au atoms, allowing the growth of further GNRs, making the formation process slow, unique, and complex. The growth of GNR6s coordinated by CTAB and BDAC in appropriate proportions continues more than 20 000 s. In particular, back-and-forth growth of GNR6s is first observed by tracking the growth solution using time-resolved XANES. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9SDS of cas: 122-18-9).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. 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).SDS of cas: 122-18-9

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

Inkjet printed Ta₂O₅ on a flexible substrate for capacitive pH sensing at high ionic strength was written by Beale, Christopher;Altana, Antonio;Hamacher, Stefanie;Yakushenko, Alexey;Mayer, Dirk;Wolfrum, Bernhard;Offenhaeusser, Andreas. And the article was included in Sensors and Actuators, B: Chemical in 2022.Application In Synthesis of Lithium chloride The following contents are mentioned in the article:

Many pH sensors on the market today have specific limitations, such as the large and fragile construction of glass electrodes, or the complicated manufacturing processes of silicon-based devices including ion-sensitive field-effect transistors (ISFETs). Furthermore, most pH sensors require a stable reference electrode, which is difficult to miniaturize. In applications where the solution properties are largely understood, the use of an impedimetric sensor without a reference electrode may be sufficient, thereby simplifying the manufacturing of such sensors. In this work, inkjet printed and flash lamp annealed Ta₂O₅. On interdigitated electrodes, with an approx. sensor area of 4 mm x 4 mm, is investigated as a capacitive pH sensing layer in 0.5 M alkali chloride buffer solutions By using the equivalent circuit of the insulator-electrolyte interface, the double layer capacitance is shown to decrease with an increase in pH within the range of pH 2 to pH 9, and agrees with prior results for anodic Ta2O5. When using the device as a sensor in both 0.5 M NaCl and 0.5 M LiCl aqueous solutions, the change in capacitance at 100 Hz is approx. – 110 nF/pH. Apart from pH sensing, these results may also prove informative in other applications, such as electrolytic capacitors, electrophysiol., and battery anodes in aqueous electrolyte. Moreover, the use of flexible, gold metalized polyethylene terephthalate (PET) foils as the sensor substrate potentially allows for large-scale production via roll-to-roll manufacturing, and further permits for use of the sensor in flexible applications such as goods packaging. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Application In Synthesis of Lithium chloride).

Lithium chloride (cas: 7447-41-8) 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. 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 In Synthesis of Lithium chloride

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

Efficient profiling of detergent-assisted membrane proteome in cyanobacteria was written by Choi, Jong-Soon;Park, Yun Hwan;Oh, Jeong Hyun;Kim, Sooyong;Kwon, Joseph;Choi, Yoon-E.. And the article was included in Journal of Applied Phycology in 2020.Reference of 122-18-9 The following contents are mentioned in the article:

Membrane proteins play key roles in cellular functions like transport of mols., perception of environmental cues, and signal transduction into the intracellular compartment. However, the profiling of membrane proteins is still a daunting task because of the hydrophobicity, restricting our knowledge of membrane proteins. Thus, we attempted to develop a novel detergent-based approach to uncover membrane proteins using cyanobacteria. We investigated the effect of five different detergents on the profiling of the cyanobacterial membrane proteome. The application of either amidosulfobetaine-14 (ASB14) or N-lauroylsarcosine (NL) doubled the number of the identified integral membrane proteins compared with the control. Extraction with ASB14 increased the number of transmembrane helixes over four times. The quant. index (mol%) of membrane proteins also increased from 13 to 22% when ASB14, NL, and benzyldimethyl-n-hexadecylammonium chloride (BAC) were used. ASB14 treatment was particularly useful for identifying membrane proteins with higher mol. weights (Mr), and the addition of BAC to the cyanobacterial membrane could identify the membrane proteins with acidic isoelec. points (pI). To validate the efficiency of the detergent-based proteomics, the functional membrane protein complexes involved in energy metabolism were selected as an example and shown to be successful with the combined data of ASB14, NL, and zwittergent 3-10 (ZW3-10). Taken together, we suggest that the use of a specific detergent and the subsequent combination of proteome data is critical for detailed profiling of cyanobacterial functional membrane proteins. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Reference of 122-18-9).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) 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. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Reference of 122-18-9

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

Development of quantitative structure-property relationship to predict the viscosity of deep eutectic solvent for CO₂ capture using molecular descriptor was written by Adi Kurnia, Kiki;Zunita, Megawati;A. P. Coutinho, Joao;Gede Wenten, I.;Santoso, Djoko. And the article was included in Journal of Molecular Liquids in 2022.HPLC of Formula: 75-57-0 The following contents are mentioned in the article:

Transport properties of deep eutectic solvent (DES), such as viscosity, are essential for selecting and designing processes based on these ”green solvents” for CO₂ capture and separation Although exptl. values for the viscosity of DES are available for a large number of systems, the number of potential hydrogen bond acceptors and hydrogen bond donors to form eutectic mixtures make the exptl. characterization and screening of these systems impractical. A computational method able to predict the viscosity of DES would be highly valuable. The present study is aimed to develop a method to predict the viscosity of DESs using interaction energy descriptors derived from Conductor like Screening Model for Real Solvent (COSMO-RS). The stepwise multiple linear regression was implemented to select the optimal number of mol. descriptors and temperature based on an extensive database covering 947 viscosity data points for a wide range of DESs. The new model showed a good correlation between exptl. and predicted values, with R-squared (R²) and average absolute relative deviation (AARD) of 0.9734 and 15.22%, resp., for the overall dataset. In addition, the model showed that the viscosity of DES was significantly influenced by the hydrogen bonding between the anion of the hydrogen bond acceptor and the hydrogen bond donor mols. The electrostatic-misfit and van der Waals forces were shown to have a marginal impact on the viscosities. In conclusion, the developed model provides an effective tool to predict the viscosity of DES and allows a fundamental understanding of the mol. level interactions on this property. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0HPLC of Formula: 75-57-0).

Tetramethylammonium chloride (cas: 75-57-0) 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. 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.HPLC of Formula: 75-57-0

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

QSAR modeling of algal low level toxicity values of different phenol and aniline derivatives using 2D descriptors was written by Seth, Arnab;Roy, Kunal. And the article was included in Aquatic Toxicology in 2020.Quality Control of 4-Chlororesorcinol The following contents are mentioned in the article:

The deposition of different types of phenol and aniline derivatives in the aquatic environment leads to toxicity to living organisms. Under such condition, evaluation of these toxicants is very much important. Due to non-availability of sufficient exptl. data as well as sufficient number of Quant. Structure-Activity Relationship (QSAR) models for the low level toxicity values for such pollutants, we have employed here the partial least squares (PLS) regression for the development of robust and predictive QSAR models using low level toxicity values against algal species. Here, we have used both Extended Topochem. Atom (ETA) and non-ETA indexes as 2D descriptors for model development. The statistical validation parameters ensure the robustness and the predictivity of the developed models. From the insights of the final PLS models, it can be concluded that presence of nitro groups (in the ortho position to phenolic hydroxyl group increasing intramol. hydrogen bonding capacity), presence of chlorine substituents (influencing lipophilicity) especially at the para position, oxygen and nitrogen at the topol. distance three, aliphatic side chain (contributing to hydrophobicity), mols. with large size atoms and higher mol. bulk will increase the toxicity towards the algal species. On the other hand, the phenol ring without any substituent or with a polar substituent (like amino group), presence of chlorine at ortho-ortho or ortho-para position, absence of nitro group, presence of chlorine and oxygen at the topol. distance three, presence of lower number of aliphatic groups will decrease the toxic effect towards the algal species. 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. 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.Quality Control of 4-Chlororesorcinol

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

Application of a fluidized three-dimensional electrochemical reactor with Ti/SnO₂-Sb/β-PbO₂ anode and granular activated carbon particles for degradation and mineralization of 2,4-dichlorophenol: Process optimization and degradation pathway was written by Samarghandi, Mohammad Reza;Dargahi, Abdollah;Rahmani, Alireza;Shabanloo, Amir;Ansari, Amin;Nematollahi, Davood. And the article was included in Chemosphere in 2021.Related Products of 95-88-5 The following contents are mentioned in the article:

A three-dimensional electrochem. reactor with Ti/SnO2-Sb/β-PbO2 anode and granular activated carbon (3DER-GAC) particle electrodes were used for degradation of 2,4-dichlorophenol (2,4-DCP). Process modeling and optimization were performed using an orthogonal central composite design (OCCD) and genetic algorithm (GA), resp. Ti/SnO2-Sb/β-PbO2 anode was prepared by electrochem. deposition method and then its properties were studied by FESEM, EDX, XRD, Linear sweep voltammetry and accelerated lifetime test techniques. The results showed that lead oxide was precipitated as highly compact pyramidal clusters in the form of β-PbO2 on the electrode surface. In addition, the prepared anode had high stability (170 h) and oxygen evolution potential (2.32 V). A robust quadratic model (p-value < 0.0001 and R2 > 0.99) was developed to predict the 2,4-DCP removal efficiency in the 3DER-GAC system. Under optimal conditions (pH = 4.98, Na2SO4 concentration = 0.07 M, c.d. = 35 mA cm^-2, GAC amount = 25 g and reaction time = 50 min), the removal efficiency of 2,4-DCP in the 3DER-GAC system and the sep. electrochem. degradation process (without GAC particle electrode) were 99.8 and 71%, resp. At a reaction time of 80 min, the TOC removal efficiencies in the 3DER-GAC and the sep. electrochem. degradation system were 100 and 57.5%, resp. Accordingly, the energy consumed in these two systems was calculated to be 0.81 and 1.57 kWh g-1 TOC, resp. Based on the results of LC-MS anal., possible degradation pathways of 2,4-DCP were proposed. Trimerization and ring opening reactions were the two dominant mechanisms in 2,4-DCP degradation This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Related Products of 95-88-5).

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. 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.Related Products of 95-88-5

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

Pd-WO_x heterostructures immobilized by MOFs-derived carbon cage for formic acid dehydrogenation was written by Zhang, Anqi;Xia, Jianhui;Yao, Qilu;Lu, Zhang-Hui. And the article was included in Applied Catalysis, B: Environmental in 2022.Reference of 13820-53-6 The following contents are mentioned in the article:

Formic acid (FA), a major product formed in biomass processing and CO₂ reduction, has attracted considerable attention as a promising renewable liquid-phase hydrogen carrier. Designing highly efficient catalysts for FA dehydrogenation is a key challenge for fuel cell-based hydrogen economy. Herein, Pd-WO_x nano-heterostructures (2.9 nm in diameter) anchored on ZIF-8 @ZIF-67 core-hell MOFs-derived nitrogen-doped porous carbon cage (NPCC) are fabricated for the first time through a phosphate mediation approach. Strong adsorption and dispersion of Pd²⁺ in the phosphate-modified NPCC are essential for the synthesis of highly dispersed ultrafine Pd nanoparticles. The alk. solution produced during the subsequent reduction process of metal ions can remove the phosphate. The obtained Pd-WO_x/(P)NPCC catalyst presents an extraordinarily catalytic performance (TOF, 2877 h^-1 at 303 K and 6135 h^-1 at 323 K) with a 100% H₂ selectivity and conversion toward FA dehydrogenation. The superior performance of Pd-WO_x/(P)NPCC is likely due to the strong interaction effect between Pd-WO_x and NPCC; unique structures of Pd-WO_x nano-heterostructures; and NPCC with hollow and large surface area and abundant surface defects. Kinetic isotope effect (KIE) measurements demonstrated that cleavage of C-H bond is the rate-determining step for HCOOH dehydrogenation. This study provides new insights into a facile and controllable synthesis strategy of inexpensive and efficient catalysts for high-efficiency dehydrogenation of liquid-phase hydrogen carrier. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Reference of 13820-53-6).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) 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. 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).Reference of 13820-53-6

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