Coherent vibration and ultrafast dynamics upon bond formation in excited dimers of an Au(I) complex.

Abstract

Au-Au bond strengthening in photoexcited dimers of an Au(I) complex is captured in solution as oscillations of femtosecond absorption signals. The subsequent dynamics, when compared to the trimer's data, confirm that the bent-to-linear structural change of the trimer occurs in the first few picoseconds.