1. École Normale Supérieure, PSL Research University, UPMC Univ Paris 06, CNRS, Département de Chimie,
PASTEUR, 24 rue Lhomond, 75005 Paris, France
2. Sorbonne Universités, UPMC Univ Paris 06, ENS, CNRS, PASTEUR, 75005 Paris, France
3. Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, D-12489 Berlin, Germany
4. Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States