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Related Experiment Video

Updated: Feb 1, 2026

Production and Targeting of Monovalent Quantum Dots

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

Charge Migration in Propiolic Acid: A Full Quantum Dynamical Study.

Victor Despré¹, Nikolay V Golubev¹, Alexander I Kuleff^1,2

¹Theoretische Chemie, PCI, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany.

Physical Review Letters

|December 1, 2018

Summary

This summary is machine-generated.

Hole charge migration in propiolic acid lasts over 10 femtoseconds, allowing for observation and control. This ultrafast electron dynamics in molecules is crucial for attochemistry research.

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Area of Science:

Physical Chemistry
Quantum Dynamics
Molecular Attochemistry

Background:

Molecular ionization often creates cationic states, initiating ultrafast electron dynamics.
The migration of hole charge in molecules is a key phenomenon in attochemistry.
Observing and manipulating pure electronic coherences with ultrashort laser pulses is a critical challenge.

Purpose of the Study:

To investigate the electron-nuclear dynamics following outer-valence ionization of propiolic acid.
To determine the timescale of hole charge migration in this molecule.
To assess the potential for experimental observation and control of these dynamics.

Main Methods:

Full-dimensional quantum calculations were employed.
Simulated the concerted electron-nuclear dynamics initiated by ionization.
Analyzed the charge migration pathways and timescales.

Main Results:

Hole charge oscillates between the carbon triple bond and carbonyl oxygen for over 10 femtoseconds.
Nuclear motion eventually traps the charge, halting migration.
The calculated timescale is sufficient for observation and manipulation.

Conclusions:

Propiolic acid exhibits significant charge migration dynamics.
The molecule is highly suitable for experimental attochemistry studies.
Ultrafast electron dynamics can be observed and potentially controlled in this system.