Hyperfine-Resolved Rotational Spectroscopy of HCNH+

Abstract

The rotational spectrum of the molecular ion HCNH+ is revisited using double-resonance spectroscopy in an ion trap apparatus, with six transitions measured between 74 and 445 GHz. Due to the cryogenic temperature of the trap, the hyperfine splittings caused by the 14N quadrupolar nucleus were resolved for transitions up to J = 4-3, allowing for a refinement of the spectroscopic parameters previously reported, especially the quadrupole coupling constant eQq.

References in corpus (4)

• Leak-out Spectroscopy, a universal method of action spectroscopy in cold ion traps
• Detection of the HC${}_3$NH${}^{+}$ and HCNH${}^{+}$ ions in the L1544 pre-stellar core
• Discovery of H${}_2$CCCH${}^{+}$ in TMC-1
• Laboratory Measurement of the Pure Rotational Transitions of the HCNH+ and its Isotopic Species

Cited by in corpus (4)

• Shock-induced HCNH+ abundance enhancement in the heart of the starburst galaxy NGC 253 unveiled by ALCHEMI
• Spectroscopic Detection and Characterization of Cyanooxomethylium, NCCO${}^{+}$
• Rovibrational Overtone and Combination Bands of the HCNH+ Ion
• High-resolution ro-vibrational and rotational spectroscopy of the open-shell, linear CCH${}^{+}$ ion (${}^3\Pi$)