114 research outputs found
Ultrafast electron diffraction imaging of bond breaking in di-ionized acetylene
Visualizing chemical reactions as they occur requires atomic spatial and femtosecond temporal resolution. Here, we report imaging of the molecular structure of acetylene (C2H2) 9 femtoseconds after ionization. Using mid-infrared laser–induced electron diffraction (LIED), we obtained snapshots as a proton departs the [C2H2]2+ ion. By introducing an additional laser field, we also demonstrate control over the ultrafast dissociation process and resolve different bond dynamics for molecules oriented parallel versus perpendicular to the LIED field. These measurements are in excellent agreement with a quantum chemical description of field-dressed molecular dynamicsPostprint (author's final draft
�ber die Wirkung verschiedener Zustandsformen des Eisens auf sein chemisches Verhalten
Die Darstellung von o-Nitrososalicyls�ure und ihre Verwendung zur Bestimmung des Nickels
Ueber einige neuere innere Komplexe des metallischen Nitrosophenylhydroxylamins und ihre Anwendung bei der mikrochemischen Analyse
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