Month: December 2022

Enkelmann, Dennis published the artcileCyanopyridines – Suitable Heterocycles for Cocrystal Syntheses, HPLC of Formula: 100-70-9, the main research area is cyanopyridine dicarboxylic acid crystal structure hydrogen bond intramol potential.

2-Cyanopyridine and 4-cyanopyridine were investigated for the controlled synthesis of cocrystals by applying the pKa rule. Cocrystals were designed with oxalic, glutaric and adipic acids and analyzed by single crystal X-ray diffraction. To get a deeper insight into the aggregation behavior of the designed cocrystals, UNI Force Field Calculations were used to compare the intermol. potentials of the main interactions of the crystal structures.

European Journal of Inorganic Chemistry published new progress about Aggregates. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, HPLC of Formula: 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Tamura, Masazumi published the artcileOrganic compound modification of CeO2 and 2-cyanopyridine hybrid catalyst in carbonate synthesis from CO2 and alcohols, Product Details of C6H4N2, the main research area is cerium oxide carbon dioxide surface modification dialkyl carbonate.

The effect of surface modification of CeO2 and 2-cyanopyridine hybrid catalyst with organic compounds was investigated by using dialkyl carbonate synthesis from CO2 and alcs. Phenol is the useful modifier for CeO2 and 2-cyanopyridine hybrid catalyst without drastic decrease of the activity. Based on the characterizations of phenol-modified CeO2 and 2-cyanopyridine hybrid catalyst such as TG-DTA, GC, FTIR and UV-vis, phenol and 2-cyanopyridine were adsorbed on CeO2 at the same time and the adsorption ratio to the surface Ce on CeO2 is estimated to be 0.11 and 0.12, resp. (2-cyanopyridine/Ce on CeO2 surface = 0.12, phenol/Ce on CeO2 surface = 0.11). The reactivity of alcs. was changed by the addition of phenol due to the steric hindrance of phenol adsorbed on CeO2. The effect of the steric hindrance was large at the C2 and C3 positions of alcs., which corresponds to the C2 and C3 positions of phenol. The reactivity was drastically decreased in the cases of C2 position-branched alcs. compared with the case without phenol addition, and the yield ratio (The yield without phenol/the yield with phenol) increased: 61 in the case of 2-ethyl-1-butanol, 9.9 in the case of 2-methyl-1-butanol, and 3.7 in the case of 1-butanol. From the DFT calculations, phenol is adsorbed nearby 2-cyanopyridine adspecies by the p-p interaction between the aromatic rings of these chems. to decrease the reaction space over CeO2, resulting in the reactivity decrease of the steric alcs., particularly the alcs. with substituents at the C2 position. Therefore, phenol can restrict the reaction field of CeO2 and 2-cyanopyridine hybrid catalyst by the steric hindrance, enabling the control of the reactivity of alcs. in the synthesis of dialkyl carbonates from CO2 and alcs.

Journal of CO2 Utilization published new progress about Adsorption. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Product Details of C6H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Alvarez-Bermudez, Olaia published the artcileMagnetically enhanced polymersupported ceria nanocatalysts for the hydration of nitriles, Quality Control of 100-70-9, the main research area is magnetite nitrile polystyrene ceria nanocatalyst hydration heterogeneous catalysis.

The heterogeneous catalysis of the hydration of nitriles to amides is a process of great industrial relevance in which cerium(IV) oxide (also referred to as ceria) has shown an outstanding catalytic performance. The use of non-supported ceria nanoparticles is related to difficulties in the purification of the product and the recovery and recyclability of the catalyst. Therefore, in this work, ceria nanoparticles are supported on a polymer matrix either by synthesizing polymer particles by so-called Pickering miniemulsions while using ceria nanoparticles as emulsion stabilizers or, as a comparison, by in-situ crystallization on preformed polymer particles. The former strategy presents significant advantages over the latter in terms of time and consumption of resources, and it facilitates an easier scale-up of the process. In both strategies, the incorporation of a magnetoresponsive core within the polymer matrix allows the recovery and the recycling of the catalyst by simple application of a magnetic field and offers an enhancement of the catalytic efficiency.

Nanotechnology published new progress about Adsorption. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Quality Control of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Murmu, Shyamal published the artcileUnveiling the genesis of the high catalytic activity in nickel phthalocyanine for electrochemical ammonia synthesis, Application In Synthesis of 91-15-6, the main research area is catalysis nickel phthalocyanine electrochem ammonia synthesis nitrogen reduction.

Electrochem. NH3 synthesis by the N reduction reaction (NRR) using an economically efficient electrocatalyst can provide a substitute for the Haber-Bosch process. However, identification of active sites responsible for the origin of catalytic activity in transition metal phthalocyanine is a difficult task due to its complex structure. Herein, d. functional theory (DFT) is applied to identify the probable active sites of Ni phthalocyanine (NiPc) for the NRR as well as the origin of catalytic activity which is associated with the d band center and d. of states (DOS) of Ni in NiPc. Accordingly, NiPc nanorods (NRs), synthesized by a solvothermal method in large scale, exhibit an NH3 yield rate ∼85μg h-1 mgcat-1 and a faradaic efficiency (FE) of 25% at -0.3 V vs. RHE. Also, the catalyst shows long term stability up to 30 h while maintaining the NH3 yield and FE. The isotopic labeling experiment and other control study led to validation of the N source in NH3 formation. This study provides brand new insightful understanding of the active sites and the origin of the catalytic activity of NiPc for their NRR applications.

Journal of Materials Chemistry A: Materials for Energy and Sustainability published new progress about Adsorption. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Application In Synthesis of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Li, Shasha published the artcileA nanoscale observation to explain the discrepancy of electron exchange capacities between biochar containing comparable surface redox-active moieties, Name: 2-Aminobenzonitrile(Flakes or Chunks), the main research area is biochar nanoscale electron exchange capacity surface redox active moiety.

Biochar, possessing electron exchange capacities (EEC), is generally involved in environmental redox reactions due to the presence of redox-active moieties (RAMs). The phenomenon that chars containing comparable RAMs possess differential EEC revealed that the accessibility of RAMs is important to the redox properties. However, many studies have focused on the type of RAMs, whereas the distribution has been insufficiently investigated. Herein, we achieved nanoscale observation of electroactive moieties on the surface of six chars using a conductive at. force microscope. For the two specific kinds of chars with submicron particles and opposite current distributions, the submicron particles took up only 1-4%wt of biochar accounting for approx. 30-50% of electron-donating capacity (EDC), and electron-accepting capacity (EAC) became 87% and 1.40 times as before after removing submicron particles, resp. Meanwhile, the combined impact of RAMs and surface topog. (that uneven distribution of RAMs resulted in outstanding EEC by enhancing accessibility) was clarified. Furthermore, direct evidence of the link between char structure and EEC (that condensed aromatic structures were indispensable to EAC while both heteroatoms and amorphous aromatics contributed to EDC) was established. These findings can aid in understanding the functions of biochar in biotic and abiotic redox processes.

BioChar published new progress about Adsorption. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Name: 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Mu, Xueli published the artcileHow and Why a Protic Ionic Liquid Efficiently Catalyzes Chemical Fixation of CO2 to Quinazoline-2,4-(1H,3H)-diones: Electrostatically Controlled Reactivity, Safety of 2-Aminobenzonitrile(Flakes or Chunks), the main research area is aminobenzonitrile carbon dioxide cyclization protic IL catalyst quinazolinedione formation.

A d. functional theory study has been conducted to gain insight into the intriguing exptl. observations on the synthesis of quinazoline-2,4-(1H,3H)-diones from 2-aminobenzonitriles reacting with CO2 catalyzed by protic ionic liquids (ILs). We explored the mol. mechanism of the titled reaction, as well as the origin and catalytic nature of different ILs toward the reaction in detail. The calculated energetically viable mechanism involves CO2 attack, intramol. rearrangement, and intramol. cyclization stages. This mechanism features the initial polarization of the CN triple bond with the assistance of the real catalytic species, [HDBU+][TFECOO-], where the cation [HDBU+] acts as Bronsted acid and the anion [TFECOO-], the adduct of anion [TFE-] and CO2, acts as a nucleophile. The calculated results present the electrostatically controlled character of the reaction, where the reactivity relies on the electrostatic interaction of the IL cation with the anion. The reactivity can be controlled and regulated by the basicity of the deprotonated counterpart of the IL cation as well as the CO2 adsorption ability of the IL anion. The best catalytic performance of [HDBU+][TFE-] is attributed to its strongest basicity of the deprotonated counterpart of [HDBU+] and its most efficient CO2 adsorption property of [TFE-]. These theor. results are expected to provide guidance for designing efficient IL-based catalysts in preparing quinazoline-2,4-(1H,3H)-diones by reacting 2-aminobenzonitriles with CO2.

Journal of Physical Chemistry A published new progress about Adsorption. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Safety of 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Skwierawska, Anna published the artcileRemoval of nonsteroidal anti-inflammatory drugs and analgesics from wastewater by adsorption on crosslinked β-cyclodextrin, Computed Properties of 42872-30-0, the main research area is nonsteroidal antiinflammatory drug analgesics removal adsorption wastewater crosslinked cyclodextrin.

We present a method using the material in the form of crosslinked β-cyclodextrin (CD) showing high efficiency in the simultaneous removal of hazardous pollutants from sewage, such as diclofenac (DIC), ibuprofen (IBU), ketoprofen (KETO), naproxen (NAPR), salicylic acid (SALI) and tramadol (TRAM). The material is stable and particularly easy to regenerate. The sorbent probably remembers the shape of the contaminants, which increases its sorption capacity after the second use. The kinetics of the KETO adsorption process from one-, two- and three-component solutions are well described by the pseudo-second-order model. The maximum polymer capacity was 162.60 mg g-1. The interactions of KETO with CD were investigated, indicating that the main sorption mechanism is based on supramol. interaction and uptake by a polymer network. The material is not sensitive to low pH and high salinity, so it can be used for the treatment of DIC, IBU, and KETO post-production wastewaters.

Water Resources and Industry published new progress about Adsorption. 42872-30-0 belongs to class nitriles-buliding-blocks, name is 2-(3-Benzoylphenyl)propanenitrile, and the molecular formula is C16H13NO, Computed Properties of 42872-30-0.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Mukherjee, Biswanath published the artcileSolvothermally Synthesized Iron Phthalocyanine Nanostructure for High ORR Response: A Joint Experimental Investigation and DFT Analysis, Name: Phthalonitrile, the main research area is synthesized iron phthalocyanine nanostructure ORR DFT electrochem.

In search for replacement of expensive, rare Pt based electrocatalyst towards O reduction reaction (ORR), transition metal-cored phthalocyanine (MPc) were under current research focus. Among various MPc, Fe phthalocyanine (FePc) gives best ORR performance, presumably because of its strong electron withdrawing capability. Herein, the authors report one pot solvothermal synthesis of 1 Dimensional FePc nanostructure and its possible application as ORR catalyst. The ORR performance of FePc nanostructure was carried out in 0.1M KOH (pH = 13) via cyclic voltammetry and linear sweep voltammetry. The performance, which was comparable with com. available Pt/C, measures a half wave potential (E1/2 = 0.64 V vs. RHE), onset potential (Eonset = 0.87 V vs. RHE) and electron transfer number (n) of 3.9 at 0.35 V (vs. RHE), indicating that the synthesized nanostructure essentially promote 4-electron reduction pathway. Addnl., unlike Pt/C, the synthesized nanostructure showed good MeOH tolerance. To elucidate the ORR performance from FePc, 1st principle based DFT calculation on two dimensional FePc monolayer was carried out and presented here for deeper insight. The excellent ORR activity coupled with MeOH tolerance favors the FePc nanostructure as a promising alternative to conventional Pt-based electrocatalyst for future energy storage and fuel cells.

Journal of the Electrochemical Society published new progress about Adsorption. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Name: Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Boughoues, Yasmine published the artcileExperimental and theoretical investigations of four amine derivatives as effective corrosion inhibitors for mild steel in HCl medium, Recommanded Product: 2-Aminobenzonitrile(Flakes or Chunks), the main research area is amine derivative mild steel corrosion inhibition mol dynamics simulation.

Four amine derivative compounds were synthesized: 2-[(phenylamino)methyl]phenol, 2-{[(4-hydroxyphenyl)amino]methyl}phenol, 2-[(2-hydroxybenzyl)amino]benzonitrile and 2-{[(3-chlorophenyl)amino]methyl}phenol. The structure of the organic mols. was confirmed by FT-IR, 13C NMR and 1H NMR spectroscopy analyses. Their corrosion inhibition performances on mild steel in 1 M HCl were investigated using electrochem. measurements and surface anal. SEM anal. confirms the presence on the mild steel surface of a protective film of the as-prepared organic compounds, which depends on the substituent groups. Moreover, d. functional theory and mol. dynamics simulation were employed in order to determine the adsorption mechanism and the position of amine derivative mols. towards the mild steel surface in an aggressive solution and to confirm the electrochem. results. The inhibition efficiency (IE) decreases with a decrease in concentration and the adsorption obeyed the Langmuir isotherm. The substitution of the OH group on the aromatic ring by Cl or CN increases IE to 90.23 and 92.56%, resp. Mol. dynamics simulations attested that the four mols. were adsorbed on the Fe (110) surface in a flat position in the presence of water and HCl with high interaction between the different groups of the inhibitors and mild steel surface.

RSC Advances published new progress about Adsorption. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Recommanded Product: 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Regulska, Elzbieta published the artcileNanostructural catalyst: metallophthalocyanine and carbon nano-onion with enhanced visible-light photocatalytic activity towards organic pollutants, Recommanded Product: Phthalonitrile, the main research area is rhodamine B metallophthalocyanine carbon nano onion photocatalysis.

Metallophthalocyanine (MPc) and carbon nano-onion (CNO) derivatives were synthesized and characterized by using UV-visible spectroscopy, IR and Raman spectroscopy, SEM with energy-dispersive X-ray spectroscopy and X-ray powder diffraction. The unmodified CNOs and MPc-CNO derivatives were used as photocatalysts for rhodamine B (RhB) degradation under visible-light irradiation The photocatalytic studies revealed that the MPc-CNO nanostructural materials simultaneously exhibited a high absorption capacity and an excellent visible-light-driven photocatalytic activity towards RhB. These nanostructures possess great potential for use as active photocatalysts for organic pollutant degradation

RSC Advances published new progress about Absorption. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Recommanded Product: Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts