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Cover Picture: Velocity of a Molecule Evaporated from a Water Nanodroplet: Maxwell–Boltzmann Statistics versus Non‐Ergodic Events (Angew. Chem. Int. Ed. 49/2015)
Author(s) -
AbdoulCarime Hassan,
Berthias Francis,
Feketeová Linda,
Marciante Mathieu,
Calvo Florent,
Forquet Valérian,
Chermette Henry,
Farizon Bernadette,
Farizon Michel,
Märk Tilmann D.
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201509527
Subject(s) - ergodic theory , excitation , chemistry , boltzmann constant , maxwell–boltzmann distribution , protonation , molecule , chemical physics , molecular physics , physics , atomic physics , thermodynamics , quantum mechanics , plasma , organic chemistry , mathematical analysis , mathematics , ion
The velocity distribution of water molecules evaporated from a mass‐selected protonated water nanodroplet after a collision‐induced electronic excitation is reported. In their Communication on page 14685 ff., M. Farizon et al. show that besides the Maxwell–Boltzmann statistics behavior, a distinct high‐velocity contribution provides evidence for molecular evaporation before complete energy redistribution, corresponding to non‐ergodic events.