The synthesis, characterization and fundamental of the dual excited-state proton-transfer properties of 3-hydroxy-2-(pyridin-2-yl)-4H-chromen-4-one (1a) are reported. In the electronic ground state, ...

We report time-resolved stimulated Raman spectra of alizarin in DMSO solution with 403 nm excitation. Upon photoexcitation, the intramolecular proton transfer reaction of alizarin occurs in 70–80 fs, ...

During recent protests in Los Angeles, fires triggered “thermal runaway” in several Waymo robotaxis’ lithium-ion battery packs. The phenomenon sent temperatures past 1,000 degrees Celsius ...