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Related Experiment Video

Updated: Jul 20, 2026

2D and 3D Matrices to Study Linear Invadosome Formation and Activity

2D and 3D Matrices to Study Linear Invadosome Formation and Activity

Published on: June 2, 2017

HXeCCH in Ar and Kr matrices.

Hanna Tanskanen¹, Leonid Khriachtchev, Jan Lundell

¹Department of Chemistry, University of Helsinki, P.O. Box 55, Helsinki FIN-00014, Finland. hanna.tanskanen@helsinki.fi

The Journal of Chemical Physics

|September 1, 2006

Summary

The study prepared and analyzed the HXeCCH molecule in argon (Ar) and krypton (Kr) matrices. Researchers observed blueshifted H-Xe stretching absorption, indicating a stabilized H-Xe bond in these new environments.

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Last Updated: Jul 20, 2026

2D and 3D Matrices to Study Linear Invadosome Formation and Activity

2D and 3D Matrices to Study Linear Invadosome Formation and Activity

Published on: June 2, 2017

Area of Science:

Physical Chemistry
Spectroscopy
Computational Chemistry

Background:

The HXeCCH molecule is a rare gas compound studied for its unique chemical bonding.
Previous studies primarily focused on HXeCCH within xenon (Xe) matrices.

Purpose of the Study:

To investigate the preparation and spectroscopic characterization of the HXeCCH molecule in argon (Ar) and krypton (Kr) matrices.
To analyze the influence of different noble gas matrices on the H-Xe bond stability and spectroscopic properties.

Main Methods:

Infrared (IR) absorption spectroscopy was employed to characterize HXeCCH in Ar and Kr matrices.
Ab initio calculations were performed for 1:1 HXeCCH-Ng complexes (Ng = Ar, Kr, Xe) to model host-guest interactions.

Main Results:

HXeCCH was successfully synthesized and detected in Ar and Kr matrices, expanding beyond Xe environments.
The H-Xe stretching absorption band exhibited a blueshift in Ar (+44.9 cm⁻¹) and Kr (+32.3 cm⁻¹) compared to Xe, signifying H-Xe bond stabilization.
A doublet absorption for H-Xe stretching was observed in all matrices, with splitting increasing from Xe (5.7 cm⁻¹) to Kr (13 cm⁻¹) and Ar (14 cm⁻¹).
Ab initio calculations supported a matrix-site model for band splitting due to specific molecule-atom interactions but could not fully explain the observed blueshifts.

Conclusions:

The HXeCCH molecule can be stabilized in non-polarizable Ar and Kr matrices, not just in Xe.
The observed blueshifts and band splitting provide insights into the stabilization of the H-Xe bond and matrix-site effects.
Further computational studies are required to fully elucidate the environmental effects on HXeCCH spectroscopy.