Monitoring molecular nonadiabatic dynamics with femtosecond X-ray diffraction.

ABSTRACT: Ultrafast time-resolved X-ray scattering, made possible by free-electron laser sources, provides a wealth of information about electronic and nuclear dynamical processes in molecules. The technique provides stroboscopic snapshots of the time-dependent electronic charge density traditionally used in structure determination and reflects the interplay of elastic and inelastic processes, nonadiabatic dynamics, and electronic populations and coherences. The various contributions to ultrafast off-resonant diffraction from populations and coherences of molecules in crystals, in the gas phase, or from single molecules are surveyed for core-resonant and off-resonant diffraction. Single-molecule [Formula: see text] scaling and two-molecule [Formula: see text] scaling contributions, where N is the nu

SUBMITTER: Bennett K 

PROVIDER: S-EPMC6042073 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature