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Characterization of gas-phase thorium nitride
Anh T Le1, Sanjay G Nakhate1, Duc-Trung Nguyen1
1School of Molecular Science, Arizona State University, Tempe, Arizona 85287, USA.
The Journal of Chemical Physics
|April 15, 2019
Summary
This study determined properties of gas-phase thorium nitride (ThN) using optical and microwave spectroscopy. Researchers measured electric dipole moments and bond length, providing insights into ThN
Area of Science:
- Molecular Spectroscopy
- Quantum Chemistry
- Actinide Chemistry
Background:
- Gas-phase thorium nitride (ThN) is an actinide molecule with limited experimental data.
- Understanding its electronic and magnetic properties is crucial for theoretical chemistry and materials science.
Purpose of the Study:
- To experimentally determine key spectroscopic and electronic properties of gas-phase ThN.
- To investigate the electronic structure and bonding in ThN using spectroscopic data and theoretical calculations.
Main Methods:
- High-resolution optical spectroscopy to study the [18.0]1.5-X2Σ+ (0,0) transition.
- Stark and Zeeman effect measurements to determine electric dipole moments and g-factors.
- Microwave spectroscopy with optical pumping for pure rotational spectrum analysis.
Main Results:
- Measured permanent electric dipole moments for the [18.0]1.5 and X2Σ+ states.
- Determined bond length and 14N hyperfine parameters (magnetic hyperfine and nuclear electric quadrupole).
- Interpreted electronic structure using molecular orbital correlation and ligand field models.
Conclusions:
- The study provides a comprehensive experimental characterization of gas-phase ThN.
- Spectroscopic data and theoretical calculations offer insights into the electronic structure and properties of ThN.
- Observed trends in electric dipole moments across the ThX series are discussed.
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