# High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules

Abstract : We demonstrate cryogenic buffer-gas cooling of gas-phase methyltrioxorhenium (MTO). This molecule is closely related to chiral organometallic molecules where the parity-violating energy differences between enantiomers may be measurable. The molecules are produced with a rotational temperature of approximately 6~K by laser ablation of an MTO pellet inside a cryogenic helium buffer gas cell. Facilitated by the low temperature, we demonstrate absorption spectroscopy of the 10.2~$\mu$m antisymmetric Re=O stretching mode of MTO with a resolution of 8~MHz and a frequency accuracy of 30~MHz. We partially resolve the hyperfine structure and measure the nuclear quadrupole coupling of the excited vibrational state.
Document type :
Journal articles
Domain :

Cited literature [29 references]

https://hal.archives-ouvertes.fr/hal-01348950
Contributor : Anne Amy-Klein Connect in order to contact the contributor
Submitted on : Friday, July 29, 2016 - 10:54:19 AM
Last modification on : Sunday, June 26, 2022 - 2:18:54 AM
Long-term archiving on: : Sunday, October 30, 2016 - 10:22:28 AM

### Files

MTOBGHAL-arXiv.pdf
Files produced by the author(s)

### Citation

Sean K. Tokunaga, R. J. Hendricks, M. R. Tarbutt, B Darquié. High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules. New Journal of Physics, Institute of Physics: Open Access Journals, 2017, 19, pp.053006. ⟨10.1088/1367-2630/aa6de4⟩. ⟨hal-01348950⟩

Record views