Themed collection Mechanochemistry: Fundamentals, applications and future
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List of participants
Faraday Discuss., 2023,241, 497-499
https://doi.org/10.1039/D2FD90091B
Poster list
Faraday Discuss., 2023,241, 492-496
https://doi.org/10.1039/D2FD90090D
Concluding remarks: Fundamentals, applications and future of mechanochemistry
Mechanochemical response is the result of a complex integration of many factors, but methods for disentangling the various contributions are emerging.
Faraday Discuss., 2023,241, 485-491
https://doi.org/10.1039/D2FD00141A
Spiers Memorial Lecture: Mechanochemistry, tribochemistry, mechanical alloying – retrospect, achievements and challenges
The paper presents a view on the achievements, challenges and prospects of mechanochemistry. The extensive reference list can serve as a good entry point to a plethora of mechanochemical literature.
Faraday Discuss., 2023,241, 9-62
https://doi.org/10.1039/D2FD00149G
Direct observation by high resolution transmission electron microscopy of gold(III) particle transformation during aging reduction reaction
We use a gold nanoparticle synthesis as a model system to study the morphological and compositional changes in gold(III) precursor particles, while reduction is taking place during aging after mechanical activation.
Faraday Discuss., 2023,241, 278-288
https://doi.org/10.1039/D2FD00126H
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
17O solid state NMR as a valuable tool for deciphering reaction mechanisms in mechanochemistry: the case study on the 17O-enrichment of hydrated Ca-pyrophosphate biominerals
The possibility of enriching in 17O the water molecules within hydrated biominerals belonging to the Ca-pyrophosphate family was investigated, using liquid assisted grinding (LAG) in the presence of 17O-labelled water.
Faraday Discuss., 2023,241, 250-265
https://doi.org/10.1039/D2FD00127F
The “η-sweet-spot” (ηmax) in liquid-assisted mechanochemistry: polymorph control and the role of a liquid additive as either a catalyst or an inhibitor in resonant acoustic mixing (RAM)
Resonant acoustic mixing (RAM) enables mechanochemical synthesis without milling media or bulk solvents.
Faraday Discuss., 2023,241, 128-149
https://doi.org/10.1039/D2FD00131D
Mechanosynthesis and photophysics of colour-tunable photoluminescent group 13 metal complexes with sterically demanding salen and salophen ligands
A series of four photoluminescent Al and In complexes were synthesised using an environmentally-benign mechanosynthesis strategy.
Faraday Discuss., 2023,241, 63-78
https://doi.org/10.1039/D2FD00117A
What stress components drive mechanochemistry? A study of ZDDP tribofilm formation
The goal of the present work is to determine the independent effects of compressive stress, shear stress, and temperature on tribofilm-formation kinetics.
Faraday Discuss., 2023,241, 394-412
https://doi.org/10.1039/D2FD00123C
Application of resonant acoustic mixing in the synthesis of vitamin C–nicotinamide variable stoichiometry cocrystals
The use of resonant acoustic mixing (RAM) to synthesize variable stoichiometry cocrystals of nicotinamide and vitamin C was investigated.
Faraday Discuss., 2023,241, 357-366
https://doi.org/10.1039/D2FD00124A
Polymorphs and solid solutions: materials with new luminescent properties obtained through mechanochemical transformation of dicyanoaurate(I) salts
Previously unreported, luminescent polymorphs and solid solutions of a simple gold(I) salt, accessed through heating and mechanochemistry.
Faraday Discuss., 2023,241, 425-447
https://doi.org/10.1039/D2FD00134A
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
The mechanochemical excitation of crystalline LiN3
Dynamic mechanical stress leads to rapid and transient vibrational excitation of crystalline solids, greatly altering their chemical reactivity.
Faraday Discuss., 2023,241, 230-249
https://doi.org/10.1039/D2FD00112H
Piezoelectric harvesting of mechanical energy for redox chemistry
Mechanical energy wasted during ball milling is converted to electrical energy via a piezoelectric element. The extraction of energy is monitored through the reduction of methylene blue to its colorless form.
Faraday Discuss., 2023,241, 91-103
https://doi.org/10.1039/D2FD00084A
Mechanochemical preparation of a modified NiAl2O4 structure
An increase in milling energy results in higher levels of non-crystallinity, surface modification and indications of Ni–Al–O interactions. Evidence of mechanochemical activation is demonstrated with higher quantities of NiAl2O4.
Faraday Discuss., 2023,241, 341-356
https://doi.org/10.1039/D2FD00099G
Accurate extrinsic and intrinsic peak broadening modelling for time-resolved in situ ball milling reactions via synchrotron powder X-ray diffraction
A state-of-the-art Rietveld refinement strategy is proposed to derive the instrumental resolution function (IRF) for a ball-mill setup for time-resolved in situ (TRIS) synchrotron XRPD.
Faraday Discuss., 2023,241, 289-305
https://doi.org/10.1039/D2FD00104G
Solid-state cross-coupling reactions of insoluble aryl halides under polymer-assisted grinding conditions
The efficiency of challenging solid-state cross-coupling of insoluble aryl halides was improved by the addition of polytetrafluoroethylene (PTFE) as a POLAG additive under high-temperature ball-milling conditions.
Faraday Discuss., 2023,241, 104-113
https://doi.org/10.1039/D2FD00121G
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
AgX-based hybrid coordination polymers: mechanochemical synthesis, structure and luminescence property characterization
Hybrid coordination polymers (HCP) are interesting for the ability to converge the properties of inorganic and organic systems in one single compound and our attention has been focused on silver-based HCP due to their luminescence properties.
Faraday Discuss., 2023,241, 448-465
https://doi.org/10.1039/D2FD00093H
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
A mechanochemical approach to the synthesis of sydnones and derivatives
Sydnones and iminosydnones were synthesized via mechanochemistry.
Faraday Discuss., 2023,241, 114-127
https://doi.org/10.1039/D2FD00096B
Photomechanochemical control over stereoselectivity in the [2 + 2] photodimerization of acenaphthylene
Unique and orthogonal photomechanochemical and photosolvochemical stereoselective routes for cycloaddition of acenaphthylene with high yields of syn and anti products are reported.
Faraday Discuss., 2023,241, 266-277
https://doi.org/10.1039/D2FD00122E
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Controlling polymorphism in molecular cocrystals by variable temperature ball milling
Selectively tuning the polymorphism of an organic cocrystal system by controlling the equilibrium milling temperature.
Faraday Discuss., 2023,241, 178-193
https://doi.org/10.1039/D2FD00115B
Shear-activated chemisorption and association of cyclic organic molecules
Shear-activated reactions of simple cyclic organic molecules are studied to isolate the effect of chemical structure on reaction yield and pathway.
Faraday Discuss., 2023,241, 194-205
https://doi.org/10.1039/D2FD00086E
The impact of the physical state and the reaction phase in the direct mechanocatalytic Suzuki–Miyaura coupling reaction
The direct mechanocatalytic Suzuki–Miyaura coupling reaction, utilizing palladium milling balls as active catalysts, was investigated regarding the physical state of the reagents and the reaction phase.
Faraday Discuss., 2023,241, 206-216
https://doi.org/10.1039/D2FD00100D
Electro-mechanochemical approach towards the chloro sulfoximidations of allenes under solvent-free conditions in a ball mill
Under mechanochemical conditions, BaTiO3 nanoparticles activate a Cu(II)/ligand combination, allowing the catalytic addition of sulfoximidoyl chlorides to allenes.
Faraday Discuss., 2023,241, 79-90
https://doi.org/10.1039/D2FD00075J
Mechanochemical reaction kinetics scales linearly with impact energy
Inelastic collisions of in ball milling provide energy to drive the chemical transformation which is, for purely mechanically driven reactions, linear with the energy dose received.
Faraday Discuss., 2023,241, 217-229
https://doi.org/10.1039/D2FD00083K
Mechanochemical solid-state vinyl polymerization with anionic initiator
The polymerization of vinyl monomers with an anionic initiator was performed under mechanochemical ball-milling conditions. The investigation revealed that the process consists of anionic initiation and radical propagation.
Faraday Discuss., 2023,241, 413-424
https://doi.org/10.1039/D2FD00080F
Mechanochemical synthesis of non-stoichiometric copper sulfide Cu1.8S applicable as a photocatalyst and antibacterial agent and synthesis scalability verification
Digenite Cu1.8S nanoparticles with photocatalytic and antibacterial activity were successfully prepared via one-step mechanochemical synthesis in a laboratory-scale and scalable fashion.
Faraday Discuss., 2023,241, 367-386
https://doi.org/10.1039/D2FD00082B
Scale up and industrial implementation: general discussion
Faraday Discuss., 2023,241, 387-393
https://doi.org/10.1039/D2FD90083A
Kinetics and basic understanding: general discussion
Faraday Discuss., 2023,241, 306-340
https://doi.org/10.1039/D2FD90082C
Advances in synthesis: general discussion
Faraday Discuss., 2023,241, 150-177
https://doi.org/10.1039/D2FD90081E
Shear processes and polymer mechanochemistry: general discussion
Faraday Discuss., 2023,241, 466-484
https://doi.org/10.1039/D2FD90084J
About this collection
We are delighted to share with you a selection of the papers associated with a Faraday Discussion on Mechanochemistry: Fundamentals, applications and future. More information about the related event may be found here: http://rsc.li/mechano-fd2022. Additional articles will be added to the collection as they are published. The final versions of all the articles presented and a record of the discussions will be published after the event.
In recent years, the remarkable renaissance of mechanochemistry has accelerated. It is now moving firmly from a niche technique, until recently applied only to the synthesis of insoluble materials, into the mainstream of chemical synthesis. It has now come to span supramolecular materials, inorganic (main group, coordination complexes, MOFs) the broad realm of organic synthesis, pharmaceutical screening, materials development, sustainable chemistry and reaction discovery, as well as its more traditional applications in alloying etc. Recent applications in recycling have enabled unprecedentedly efficient and clean routes to activate, extract and re-use critical and noble metals, and new opportunities have just opened up through development of enzyme-catalyzed reactivity in the absence of solvents, an uncharted area of not only mechanochemistry but also biochemistry. This meeting will cover 4 main themes: Advances in synthesis, Shear processes and polymer mechanochemistry, Kinetics and basic understanding and Scale up and industrial implementation.
On behalf of the Scientific Committee, we hope you join us and participate in this exciting event, and that you enjoy these articles and the record of the discussion.