Mechanochemical Reactions on Copper-Based Compounds

A turn-on fluorescence sensor for cyanide from mechanochemical reactions between quantum dots and copper complexes.

Manual grinding of CuCl(2), 2,2'-bipyridine and hydrophobic CdSe QDs creates a selective and fast turn-on fluorescence sensor for detection of nanogram quantities of solid cyanide salts by the naked-eye. Using a fluorescence detector this simple sensor detects 100 ppm of NaCN in sand.

Harnessing mechanochemical effects with ultrasound-induced reactions

Chemical reactions may experience numerous and varied effects under the influence of ultrasound. This soft radiation, often viewed as a lab trick, induces and improves both physical and chemical transformations by means of efficient agitation, dissolution, mass and heat transfers, and reagents sonolysis, which all arise from the cavitational collapse. An empirical rationale that distinguishes b...

Inhibition Mechanisms of Organic Compounds on Copper and Copper Alloys

Quantitative determination of activation energies in mechanochemical reactions.

Mechanochemical reactions often result in 100% yields of single products, making purifying procedures obsolete. Mechanochemistry is also a sustainable and eco-friendly method. The ever increasing interest in this method is contrasted by a lack in mechanistic understanding of the mechanochemical reactivity and selectivity. Recent in situ investigations provided direct insight into formation path...

Quantitative in situ and real-time monitoring of mechanochemical reactions.

An experimental technique for in situ and real-time monitoring of mechanochemical reactions in a shaker ball mill was recently described, which utilises highly penetrating X-ray radiation available at the ID15B beamline of the European Synchrotron Radiation Facility. Herein, we describe the first attempts to perform such reaction monitoring in a quantitative fashion, by introducing an internal ...