Ultrafast photodimerization dynamics in α-cyano-4-hydroxycinnamic and sinapinic acid crystals

Add time:07/15/2019    Source:sciencedirect.com

We report a sub-picosecond time-resolved fluorescence spectroscopic study of different cinnamic acid crystals, model systems for solid-state photodimerization reactions. For α-cyano-4-hydroxycinnamic acid (α-CHC), we identify the emission spectra of both monomers and dimers, allowing us to directly probe the photoinduced dynamics of both species. The dimerization occurs on a timescale of 10 ps and results in a long-lived dimer product, stable for hours. For sinapinic acid, we find an extremely fast, sub-picosecond dimerization reaction and a short-lived dimer. This first sub-picosecond time-resolved dimerization study in cinnamic acid crystals provides a new basis for relating their structural properties and microscopic reaction dynamics.

We also recommend Trading Suppliers and Manufacturers of ALPHA-CYANO-4-HYDROXYCINNAMIC ACID (cas 28166-41-8). Pls Click Website Link as below: cas 28166-41-8 suppliers

Prev:Inhibition of glucose oxidation by α-cyano-4-hydroxycinnamic acid stimulates feeding in rats
Next:Vibrational analysis of α-cyanohydroxycinnamic acid)