Studying reaction mechanisms in the solid state

Photochemical reactions in crystals can show excellent selectivity, thanks to the rigid environment. But the development and applications of reactions in crystals has suffered due to a lack of mechanistic insight.

Now Miguel Garcia-Garibay, at the University of California, Los Angeles, US, and colleagues have published the first report addressing the absolute reaction kinetics of a reaction taking place in the crystalline solid state, using conventional pump-probe methods with excitation in the nanosecond and femtosecond time domains.

Graphical abstract: Steady state and transient kinetics in crystalline solids: the photochemistry of nanocrystalline 1,1,3-triphenyl-3-hydroxy-2-indanone

They studied the Norrish type I decarbonylation of a 2-indanone in solution and as a nanocrystalline suspension and, for the first time, detected the radical intermediates involved in the reaction.

To find out more, download the group’s Chemical Science Edge article for free.

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