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Related Experiment Video

Updated: Apr 28, 2026

Spatial Separation of Molecular Conformers and Clusters

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

Electron Diffraction of Superfluid Helium Droplets.

Jie Zhang¹, Yunteng He¹, William M Freund¹

¹Department of Chemistry, Oregon State University , Corvallis, Oregon 97331, United States.

The Journal of Physical Chemistry Letters

|June 13, 2014

Summary

This summary is machine-generated.

Electron diffraction reveals superfluid helium droplet size affects scattering patterns. Doped droplets show modified molecular scattering, with hundreds of helium atoms remaining, guiding future laser-aligned molecule experiments.

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Published on: August 22, 2017

Area of Science:

Atomic and Molecular Physics
Condensed Matter Physics
Quantum Fluids

Background:

Superfluid helium droplets are unique nanoreactors for studying molecules.
Electron diffraction is a powerful tool for probing atomic and molecular structures.

Purpose of the Study:

To investigate electron diffraction patterns of pure and doped superfluid helium droplets.
To assess the feasibility of electron diffraction experiments with laser-aligned molecules in helium droplets.

Main Methods:

Experimental electron diffraction on superfluid helium droplets.
Doping droplets with phthalocyanine gallium chloride molecules.
Analysis of scattering profiles and fitting to determine droplet properties.

Main Results:

Droplet diffraction patterns depend on nozzle temperature and average droplet size.
Scattering intensity of doped droplets is modified by the embedded molecules.
Estimated hundreds of helium atoms remain in doped droplets.

Conclusions:

Superfluid helium droplet size influences electron diffraction characteristics.
Electron diffraction is viable for studying molecules within helium droplets.
Results provide insights for future experiments with laser-aligned molecules.