Reanalysis of the Ångström System (B1Σ+- A1Π) in the13C16O Isotopic Molecule

Hakalla, Rafał; Szajna, Wojciech; Zachwieja, M.; Kępa, R.

doi:10.12693/aphyspola.122.674

Cited by 12 publications

(7 citation statements)

References 41 publications

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“…We present records that go to higher J′ values than Haridass and Huber 9 for most v′ levels and lower J′ values for v′ = 0. The bands in the visible portion of the spectrum studied by Kepa and colleagues 10,11,21 provide results for somewhat higher J′. We confirm perturbations that these groups have previously observed and/or calculated.…”

Section: Displays a Typical Transmission Spectrum Forsupporting

confidence: 89%

“…The observed perturbation at J′ = 26 in the e and f levels corresponds to the D 1 Δ(v′ = 1) vibrational level. 21 In addition to the observed perturbations already noted, 10,11 we report newly observed perturbations in Table 1 thanks to the superior precision of our measurements. These new perturbations are generally weaker and involve mainly lower J′.…”

Section: Displays a Typical Transmission Spectrum Forsupporting

confidence: 75%

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High-Resolution Study of ¹³C¹⁶O A–X(v′ = 0–9) Bands Using the VUV-FTS at SOLEIL: Revised Term Values

et al. 2013

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We present high-resolution absorption spectral measurements of the A(1)Π-X(1)Σ(+) band system of (13)C(16)O. These were recorded with the VUV Fourier transform spectrometer (VUV-FTS) installed on the DESIRS beamline at the SOLEIL synchrotron. This work includes revised term values that extend to higher J' values than previous measurements for most v' levels and lower J' values for v' = 0. We confirm previously observed perturbations of the rotational levels in greater detail and present evidence for new perturbations. The accuracy in the wavelength determination and term values is on average within 0.01 cm(-1), improving upon previous measurements.

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Section: Displays a Typical Transmission Spectrum Forsupporting

confidence: 89%

Section: Displays a Typical Transmission Spectrum Forsupporting

confidence: 75%

High-Resolution Study of ¹³C¹⁶O A–X(v′ = 0–9) Bands Using the VUV-FTS at SOLEIL: Revised Term Values

et al. 2013

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“…In laboratory conditions its recording and analysis were made several times, 9,17,[19][20][21][22][23][24][25][26] recently by Hakalla et al 27,28 Highly excited electronic states of CO now belong to one of the main trends in the research into this molecule. 19,[27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45] A about 6 and 1 Torr, respectively. Next, I passed an electric current through the mixture in order to obtain a sufficient amount of deposit of 13 C on the electrodes.…”

Section: Introductionmentioning

confidence: 99%

First analysis of the Herzberg (C¹Σ⁺→ A¹Π) band system in the less-abundant¹³C¹⁷O isotopologue

Hakalla

2014

RSC Adv.

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“…The electrodes were operated at 950 V and 80 mA DC with a static gas pressure of 3 mbar. The higher temperature of the 13 C 18 O plasma formed at the center of the cathode, up to 1000 K, allowed for observations of rotational transitions with J up to 41; a higher value than in our previous experiments [30,31]. The physical line-broadening increased by only 0.02 cm −1 relative to that reported in [32,33], where the temperatures of plasmas were about 650 K. The final molecular gas composition used to obtain the spectrum was 13 C 18 O : 12 C 18 O = 1 : 0.1.…”

Section: Methodsmentioning

confidence: 70%

Precision spectroscopy and comprehensive analysis of perturbations in the A¹∏(v= 0) state of¹³C¹⁸O

et al. 2018

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We have reinvestigated the A 1 Π(v = 0) level of 13 C 18 O using new high-resolution spectra obtained via multi-photon laser excitation as well as with synchrotron-based Fourier-transform absorption spectroscopy of the A 1 Π − X 1 Σ + (0, 0), e 3 Σ − − X 1 Σ + (1, 0), d 3 ∆ − X 1 Σ + (4, 0), a 3 Σ + − X 1 Σ + (9, 0), and a 3 Π − X 1 Σ + (11, 0) bands. In addition, Fourier-transform emission spectroscopy in the visible range is performed on the B 1 Σ + − A 1 Π(0, 0) band. Spectra of the B 1 Σ + − X 1 Σ + (0, 0) band are measured in order to tie information from the latter emission data to the level structure of A 1 Π(v = 0). The high pressures in the absorption cell at the synchrotron and the high temperatures in the emission discharge permitted monitoring of high rotational quantum levels in A 1 Π(v = 0) up to J = 43. All information, in total over 900 spectral lines, was included in an effective-Hamiltonian analysis of the A 1 Π(v = 0, J) levels that are directly perturbed by the e 3 Σ − (v = 1), d 3 ∆(v = 4), a 3 Σ + (v = 9), D 1 ∆(v = 0), I 1 Σ − (v = 0, 1) close-lying levels and the e 3 Σ − (v = 0, 2), d 3 ∆(v = 3, 5), a 3 Σ + (v = 8, 10) remote levels, as well being indirectly influenced by the a 3 Π(v = 10, 11) state. The influence of nine further perturber levels and their interactions was investigated and are not significant for reproducing the present experimental data. This analysis leads to a much improved description in terms of molecular constants and interaction parameters, compared to previous studies of the same energy region for other CO isotopologues.

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Reanalysis of the Ångström System (B¹Σ⁺- A¹Π) in the¹³C¹⁶O Isotopic Molecule

Cited by 12 publications

References 41 publications

High-Resolution Study of ¹³C¹⁶O A–X(v′ = 0–9) Bands Using the VUV-FTS at SOLEIL: Revised Term Values

High-Resolution Study of ¹³C¹⁶O A–X(v′ = 0–9) Bands Using the VUV-FTS at SOLEIL: Revised Term Values

First analysis of the Herzberg (C¹Σ⁺→ A¹Π) band system in the less-abundant¹³C¹⁷O isotopologue

Precision spectroscopy and comprehensive analysis of perturbations in the A¹∏(v= 0) state of¹³C¹⁸O

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Reanalysis of the Ångström System (B1Σ+- A1Π) in the13C16O Isotopic Molecule

Cited by 12 publications

References 41 publications

High-Resolution Study of 13C16O A–X(v′ = 0–9) Bands Using the VUV-FTS at SOLEIL: Revised Term Values

High-Resolution Study of 13C16O A–X(v′ = 0–9) Bands Using the VUV-FTS at SOLEIL: Revised Term Values

First analysis of the Herzberg (C1Σ+→ A1Π) band system in the less-abundant13C17O isotopologue

Precision spectroscopy and comprehensive analysis of perturbations in the A1∏(v= 0) state of13C18O

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Reanalysis of the Ångström System (B¹Σ⁺- A¹Π) in the¹³C¹⁶O Isotopic Molecule

High-Resolution Study of ¹³C¹⁶O A–X(v′ = 0–9) Bands Using the VUV-FTS at SOLEIL: Revised Term Values

High-Resolution Study of ¹³C¹⁶O A–X(v′ = 0–9) Bands Using the VUV-FTS at SOLEIL: Revised Term Values

First analysis of the Herzberg (C¹Σ⁺→ A¹Π) band system in the less-abundant¹³C¹⁷O isotopologue

Precision spectroscopy and comprehensive analysis of perturbations in the A¹∏(v= 0) state of¹³C¹⁸O