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High-resolution rovibrational and rotational spectroscopy of the singly deuterated cyclopropenyl cation, c-C₃H₂D.

ABSTRACT: Applying a novel action spectroscopic technique in a 4 K cryogenic ion-trap instrument, the molecule c-C₃H₂D⁺ has been investigated by high-resolution rovibrational and pure rotational spectroscopy for the first time. In total, 126 rovibrational transitions within the fundamental band of the ν₁ symmetric C-H stretch were measured with a band origin centred at 3168.565 cm^-1, which were used to predict pure rotational transition frequencies in the ground vibrational state. Based on these predictions, 16 rotational transitions were observed between 90 and 230 GHz by using a double-resonance scheme. These new measurements will enable the first radio-astronomical search for c-C₃H₂D⁺.

SUBMITTER: Gupta D

PROVIDER: S-EPMC10510037 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature

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High-resolution rovibrational and rotational spectroscopy of the singly deuterated cyclopropenyl cation, c-C3H2D.

Gupta Divita D Silva Weslley G D P WGDP Doménech José L JL Plaar Eline E Thorwirth Sven S Schlemmer Stephan S Asvany Oskar O

Faraday discussions 20230920 0

Applying a novel action spectroscopic technique in a 4 K cryogenic ion-trap instrument, the molecule c-C3H2D+ has been investigated by high-resolution rovibrational and pure rotational spectroscopy for the first time. In total, 126 rovibrational transitions within the fundamental band of the ν1 symmetric C-H stretch were measured with a band origin centred at 3168.565 cm-1, which were used to predict pure rotational transition frequen ...[more]

PMID: 37313855

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