2017
DOI: 10.1016/j.saa.2017.06.018
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Experimental determination of the absolute infrared absorption intensities of formyl radical HCO

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Cited by 18 publications
(10 citation statements)
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“…50 Furthermore, carbon monoxide can be probed via its stretching mode (ν 1 , 2134 cm −1 ), carbon dioxide (CO 2 ) via its CO asymmetric stretch (ν 3 , 2340 cm −1 ) and the bending mode (ν 2 , 667 cm −1 ), and methane (CH 4 ) via its deformation mode (ν 4 , 1302 cm −1 ). In addition to the aforementioned closed shell molecules, the formyl (HCO•, 7; ν 3 , 1844 cm −1 ; ν 2 , 1092 cm −1 ) 51 and hydroxymethyl (CH 2 OH•, 8; ν 6 , 1192 cm −1 ) 51 radicals are observed at abundances of (2.4 ± 0.6) × 10 14 molecules) and (1.4 ± 0.2) × 10 15 molecules), respectively, based on their measured (formyl) 52 and calculated (hydroxymethyl) 53 absolute absorption intensities. In the methanol−carbon monoxide ice mixtures (Figure S2), the same molecules and radicals formed as in the pure methanol ices.…”
Section: ■ Resultsmentioning
confidence: 99%
“…50 Furthermore, carbon monoxide can be probed via its stretching mode (ν 1 , 2134 cm −1 ), carbon dioxide (CO 2 ) via its CO asymmetric stretch (ν 3 , 2340 cm −1 ) and the bending mode (ν 2 , 667 cm −1 ), and methane (CH 4 ) via its deformation mode (ν 4 , 1302 cm −1 ). In addition to the aforementioned closed shell molecules, the formyl (HCO•, 7; ν 3 , 1844 cm −1 ; ν 2 , 1092 cm −1 ) 51 and hydroxymethyl (CH 2 OH•, 8; ν 6 , 1192 cm −1 ) 51 radicals are observed at abundances of (2.4 ± 0.6) × 10 14 molecules) and (1.4 ± 0.2) × 10 15 molecules), respectively, based on their measured (formyl) 52 and calculated (hydroxymethyl) 53 absolute absorption intensities. In the methanol−carbon monoxide ice mixtures (Figure S2), the same molecules and radicals formed as in the pure methanol ices.…”
Section: ■ Resultsmentioning
confidence: 99%
“…The atomic basis sets are now made available 93 that allow quantitative calculations of the structure and energetics of typical molecular systems. We are somewhat sorry for our belated report, for they have already been, and are being, used by our colleagues in their studies of unusual molecules under the unusual conditions of lowtemperature high-energy chemistry [94][95][96][97][98][99][100] .…”
Section: Discussionmentioning
confidence: 99%
“…Species of potential interest include stable compounds of the light noble gases, 29 ions whose absorption spectra have so far been measured only in neon or argon matrices, 2 or labile organic ions that are important intermediates in atmospheric extraterrestrial chemistry. 30,31 The observation of long-lived SF 6 + contrasts with previous failures to form these ions by doping neutral HNDs followed by ionization. 16−18 It is usually a thankless task to explain past failures, but we believe that we can rationalize the different outcomes.…”
mentioning
confidence: 93%
“…Species of potential interest include stable compounds of the light noble gases, 29 ions whose absorption spectra have so far been measured only in neon or argon matrices, 2 or labile organic ions that are important intermediates in atmospheric extraterrestrial chemistry. 30 , 31 …”
mentioning
confidence: 99%
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