Mechanochemical Synthesis of Yttrium Oxide and Hydrogen Peroxide via Planetary Ball Milling With Nickel Catalyst: Structural, Morphological, and Particle Size Analysis DOI Creative Commons
Andika Widya Pramono,

Mohamed Ansari,

Meenaloshini a p Sagutnam

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 31, 2024

Abstract This study investigates the mechanochemical synthesis of Yttrium Oxide (Y₂O₃) and Hydrogen Peroxide (H₂O₂) via planetary ball milling, with a focus on catalytic effect nickel. Hydride (YH₃) was milled under hydrogen atmosphere, both without nickel catalyst, to assess influence various process parameters such as milling time, pressure, catalyst presence phase transformation, crystallite size, particle morphology, size distribution. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), laser analysis (PSA) were used characterize samples. Results show that catalysis significantly enhances reaction kinetics, reduces promotes uniform morphology compared non-catalyzed Catalyzed samples exhibited faster transformation from YH₃ Y₂O₃, reduction 11.0 nm near-complete formation Y₂O₃ H₂O₂. These findings demonstrate nickel-catalyzed offers an efficient scalable route for synthesis, potential applications in catalysis, storage, environmental remediation. Further research optimizing conditions exploring other catalysts is recommended.

Language: Английский

Intermediates in Mechanochemical Reactions DOI
Karen J. Ardila‐Fierro, José G. Hernández

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(14)

Published: Jan. 5, 2024

Abstract Mechanochemical reactions offer methodological and environmental advantages for chemical synthesis, constantly attracting attention within the scientific community. Besides unmistakable sustainability advantages, conditions under which mechanochemical occur, namely solventless conditions, sometimes facilitate isolation of otherwise labile or inaccessible products. Despite these limited knowledge exists regarding mechanisms types intermediates involved. Nevertheless, in an expanding number cases, ex situ monitoring techniques have allowed observation, characterization, reaction transformations. In this Minireview, we present a series examples reactive been detected spanning organic, organometallic, inorganic, materials chemistry. Many were stabilized by non‐covalent interactions, played pivotal role guiding We believe that uncovering understanding such instances, growing mechanochemistry community could find novel opportunities catalysis discover new while achieving simplification design.

Language: Английский

Citations

26
Localized assembly in biological activity: Origin of life and future of nanoarchitectonics DOI
Jingwen Song, Kohsaku Kawakami, Katsuhiko Ariga

et al.

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 339, P. 103420 - 103420

Published: Feb. 3, 2025

Language: Английский

Citations

3
Solid-state mechanochemistry for the rapid and efficient synthesis of tris-cyclometalated iridium(iii) complexes DOI Creative Commons
Koji Kubota,

Tsubura Endo,

Hajime Ito

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(9), P. 3365 - 3371

Published: Jan. 1, 2024

Tris-cyclometalated iridium(iii) complexes have received widespread attention as attractive prospective materials for e.g., organic light-emitting diodes (OLEDs), photoredox catalysts, and bioimaging probes. However, their preparation usually requires prolonged reaction times, significant amounts of high-boiling solvents, multistep synthesis, inert-gas-line techniques. Unfortunately, these requirements represent major drawbacks from both a production-cost an environmental perspective. Herein, we show that two-step mechanochemical protocol using ball milling enables the rapid efficient synthesis various tris-cyclometalated relatively cheap chloride hydrate without use solvent in air. Notably, direct one-pot procedure is also demonstrated. The present solid-state approach can be expected to inspire development cost-effective timely production methods valuable iridium-based complexes, well discovery new phosphorescent materials, sensors, catalysts.

Language: Английский

Citations

5
Intermediates in Mechanochemical Reactions DOI
Karen J. Ardila‐Fierro, José G. Hernández

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(14)

Published: Jan. 5, 2024

Abstract Mechanochemical reactions offer methodological and environmental advantages for chemical synthesis, constantly attracting attention within the scientific community. Besides unmistakable sustainability advantages, conditions under which mechanochemical occur, namely solventless conditions, sometimes facilitate isolation of otherwise labile or inaccessible products. Despite these limited knowledge exists regarding mechanisms types intermediates involved. Nevertheless, in an expanding number cases, ex situ monitoring techniques have allowed observation, characterization, reaction transformations. In this Minireview, we present a series examples reactive been detected spanning organic, organometallic, inorganic, materials chemistry. Many were stabilized by non‐covalent interactions, played pivotal role guiding We believe that uncovering understanding such instances, growing mechanochemistry community could find novel opportunities catalysis discover new while achieving simplification design.

Language: Английский

Citations

3
Solid-state nickel(0)-mediated Yamamoto coupling enabled by mechanochemistry DOI
Koji Kubota,

Naoki Shizukuishi,

Shotaro Kubo

et al.

Chemistry Letters, Journal Year: 2024, Volume and Issue: 53(4)

Published: March 29, 2024

Abstract Herein, we report the first solid-state protocol for nickel(0)-mediated Yamamoto-coupling reactions using ball milling. A variety of aryl halides reacted efficiently in presence bis(cyclooctadiene)nickel(0) [Ni(cod)2] and 4,4'-di-tert-butyl-2,2'-bipyridyl under mechanochemical conditions, affording corresponding biaryls high yields. Considering that potentially harmful high-boiling organic solvents are not required, present study provides a more convenient, environmentally friendly, sustainable alternative to conventional solution-based Yamamoto coupling. Solid-state polymerization development catalytic variant also described.

Language: Английский

Citations

2
Highly efficient and air-tolerant calcium-based Birch reduction using mechanochemistry DOI
Koji Kubota,

Yamato Fukuzawa,

Keisuke Kondo

et al.

Chemistry Letters, Journal Year: 2024, Volume and Issue: 53(4)

Published: March 29, 2024

Abstract In this study, we report a mechanochemical protocol for highly efficient and air-tolerant calcium-based Birch reduction. The developed approach allows the use of readily available calcium metal as safer-to-handle reductant reduction various aromatic compounds. reaction was rapid desired dearomatization products were obtained in good yields within 15 min at ambient temperature. Notably, all synthetic operations can be performed under conditions without complicated setup involving inert gases. feasibility gram-scale synthesis demonstrated, further highlighting practical utility protocol.

Language: Английский

Citations

2
Mechanochemistry enabled highly efficient solvent-free deoxygenation of phosphine oxides in air DOI Creative Commons
Koji Kubota,

Reon Hisazumi,

Tamae Seo

et al.

RSC Mechanochemistry, Journal Year: 2024, Volume and Issue: 1(3), P. 250 - 254

Published: Jan. 1, 2024

We demonstrate that a mechanochemical protocol enables the highly efficient solvent-free deoxygenation of phosphine oxides with hydrosilanes in presence phosphoric acid additive.

Language: Английский

Citations

1
Late-stage functionalization using a popular titrating agent: aryl- chlorides and -fluorides activation by the diphenylacetic acid dianion DOI Creative Commons

Alessandro Cerveri,

Giulia Russo, Sara Sparascio

et al.

Published: Aug. 8, 2024

Aryl-chlorides and -fluorides are common building blocks, but their use in synthesis is limited by the high stability of Ar-X bonds. The generation aryl radicals via activation strong bonds possible through irradiation tailor-made organic anions, which become reductants stronger than lithium metal. We report that combination visible light with cheap diphenylacetic acid dianion an even better tool, showing excellent activity across a variety complex substrates providing opportunities for late-stage drug modification. chemoselectively activated presence more easily reducible functions, such as Alk-Cl ones carbonyl groups, reminding Marcus inverted region principle. These results pave way to original synthetic strategies would be otherwise considered impossible

Language: Английский

Citations

1
Calcium Carbide (CaC2) as a C2‐Synthon by Mechanochemistry DOI
Alejandro Cortés‐Lobo, José G. Hernández

ChemPlusChem, Journal Year: 2024, Volume and Issue: unknown

Published: May 31, 2024

Abstract Mechanochemical reactions by ball milling have opened new avenues in chemical synthesis. Particularly, mechanochemistry has facilitated the reaction of insoluble materials to simplify stablished synthetic protocols and develop ones. One notable application involves use calcium carbide (CaC 2 ) as a C ‐synthon through mechanochemistry, which offered more practical alternative incorporate ‐units compared conventional highly flammable gaseous acetylene. For example, milling, acetylenic anions [C ] 2− found CaC been harnessed for synthesis diverse functional carbon well discrete organic molecules. This Concept aims contribute conceptualization this innovative approach while highlighting both its advantages challenges inherent .

Language: Английский

Citations

1
Mechanochemical Radical Transformations in Organic Synthesis DOI

Jon Sperry,

Sahra Sheikhaleslami

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 22, 2024

Abstract Organic synthesis has historically relied on solution‐phase, polar transformations to forge new bonds. However, this paradigm is evolving, propelled by the rapid evolution of radical chemistry. Additionally, organic witnessing a simultaneous resurgence in mechanochemistry, formation bonds solid‐state, further contributing shift status quo. The aforementioned advances chemistry have predominantly occurred solution phase, while majority mechanochemical feature transformations. Herein, we discuss rapidly advancing area synthesis: reactions. Solid‐state reactions offer improved green metrics, better reaction outcomes, and access intermediates products that are difficult or impossible reach solution. This review explores these context small molecule synthesis, from early findings current state‐of‐the‐art, underscoring pivotal role solid‐state likely play sustainable chemical synthesis.

Language: Английский

Citations

1