Ground state molecular constants of 12C16O

Mantz, A. W.; Maillard, Jean; Roh, Won B.; Rao, K. Narahari

doi:10.1016/0022-2852(75)90049-1

Cited by 116 publications

(50 citation statements)

References 14 publications

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“…These constants are obtained by (a properly weighted) global fitting of all the observed line positions in the present work and seven microwave transition frequencies listed in [9]. The term value of the v = 0 state was constrained to 1081.58603 cm À1 , which was calculated from the accurate equilibrium constants of [14]. As can be seen from Tables 1 and 2, in most of the cases (unblended lines) the ''observed'' and ''calculated'' line positions agree within $0.001 cm À1 .…”

Section: Resultsmentioning

confidence: 99%

Fourier transform emission spectroscopy of Δv=2 sequence bands of the CO molecule in the ground electronic state

Mishra

Shetty

Kshirsagar

2005

Journal of Molecular Spectroscopy

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Section: Resultsmentioning

confidence: 99%

Fourier transform emission spectroscopy of Δv=2 sequence bands of the CO molecule in the ground electronic state

Mishra

Shetty

Kshirsagar

2005

Journal of Molecular Spectroscopy

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“…15 The zero-point energy ͑1081.586 cm Ϫ1 ) and the energy of the Jϭ1 level in the X 1 ⌺ ϩ state ͑3.845 cm Ϫ1 ) has been calculated using the Hamiltonian and molecular constants of Ref. 16. For the transitions originating from the e parity level, the term values should be corrected by substracting 394 MHz, i.e., the ⌳-doubling in the a 3 ⌸(vϭ1, Jϭ1, ⍀ϭ1͒ state.…”

Section: Analysis and Discussionmentioning

confidence: 99%

A reanalysis of the k3Π state of CO

Berden

Jongma

Zande

et al. 1997

The Journal of Chemical Physics

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Articles you may be interested inA critical re-assignment of the Rydberg states of iodomethane based on new polarization data J. Chem. Phys. 138, 134308 (2013); 10.1063/1.4798972[1 + 1] photodissociation of CS 2 + ( X ̃ 2 Π g ) via the vibrationally mediated B ̃ 2 Σ u + state: Multichannels exhibiting and mode specific dynamicsThe k 3 ⌸ state of the CO molecule is investigated in the region between 91 000 and 97 000 cm Ϫ1 via 1ϩ1 resonance enhanced multiphoton ionization spectroscopy on CO molecules prepared in a single quantum level of the a 3 ⌸(vϭ1͒ state. A new vibronic band is found which is at lower energy than the vibrational ground state reported in the literature, leading to a reassignment of the vibrational numbering of the k 3 ⌸ state. The rotationally resolved spectra of the k 3 ⌸ (vϭ0-6͒ ←a 3 ⌸(vϭ1, Jϭ1, ⍀ϭ1͒ of 12 CO and 13 CO have been observed and analyzed, confirming the new vibrational labeling and providing a full set of molecular constants of the k 3 ⌸ valence state.

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“…The observations were reduced by dividing the spectrum by that of a nearby comparison star to remove the instrumental response and the effects of atmospheric absorption. Mantz et al (1975).…”

Section: Observations and Resultsmentioning

confidence: 99%

An Extremely Large Excess of ¹⁸ O in the Hydrogen-deficient Carbon Star HD 137613

Clayton¹,

Herwig²,

Geballe³

et al. 2005

ApJ

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We report the discovery of a uniquely large excess of 18 O in the hydrogen-deficient carbon (HdC) star HD 137613 based on a spectrum of the first-overtone bands of CO at 2.3-2.4 mm in which three strong absorption bands of 12 O Շ 1. The solar value of this ratio is ∼500. Neither He-core burning nor He-shell flash burning can produce the isotopic ratios of oxygen and carbon observed in HD 137613. However, a remarkable similarity exists between the observed abundances and those found in the outer layers of the broad He shell of early-asymptotic giant branch (AGB) stars, soon after the end of He-core burning. It is not known how the outer envelope down to the He shell could be lost, but some mechanism of enhanced mass loss must be involved. HD 137613 may be a post-early-AGB star with the outer layers of the former He-burning shell as its photosphere. The unusual elemental abundances of the HdC stars resemble those of the R Coronae Borealis (RCB) stars, but HdC stars do not produce clouds of dust that produce declines in brightness. None of the other RCB or HdC stars observed show significant 18 O.

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Ground state molecular constants of 12C16O

Cited by 116 publications

References 14 publications

Fourier transform emission spectroscopy of Δv=2 sequence bands of the CO molecule in the ground electronic state

Fourier transform emission spectroscopy of Δv=2 sequence bands of the CO molecule in the ground electronic state

A reanalysis of the k3Π state of CO

An Extremely Large Excess of ¹⁸ O in the Hydrogen-deficient Carbon Star HD 137613

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Ground state molecular constants of 12C16O

Cited by 116 publications

References 14 publications

Fourier transform emission spectroscopy of Δv=2 sequence bands of the CO molecule in the ground electronic state

Fourier transform emission spectroscopy of Δv=2 sequence bands of the CO molecule in the ground electronic state

A reanalysis of the k3Π state of CO

An Extremely Large Excess of 18 O in the Hydrogen-deficient Carbon Star HD 137613

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Product

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An Extremely Large Excess of ¹⁸ O in the Hydrogen-deficient Carbon Star HD 137613