Coherent control of long-range photoinduced electron transfer by stimulated X-ray Raman processes.

Dorfman, Konstantin E; Zhang, Yu; Mukamel, Shaul · Proc Natl Acad Sci U S A · 2016

basic_science · Level V

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Abstract

We show that X-ray pulses resonant with selected core transitions can manipulate electron transfer (ET) in molecules with ultrafast and atomic selectivity. We present possible protocols for coherently controlling ET dynamics in donor-bridge-acceptor (DBA) systems by stimulated X-ray resonant Raman processes involving various transitions between the D, B, and A sites. Simulations presented for a Ru(II)-Co(III) model complex demonstrate how the shapes, phases and amplitudes of the X-ray pulses can be optimized to create charge on demand at selected atoms, by opening up otherwise blocked ET pathways.