What question did this study set out to answer?

To extend rotational measurements of the Phillips band system of diatomic carbon and provide a comprehensive survey of the molecular constants and potential curves for all known states.

January 1, 1963The Astrophysical Journal

An Extension of the Phillips System of C₂ and a Survey of C₂ States.

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Authors

EBE. A. BallikBrockhouse Institute for Materials Research DRDanielle Ramsay

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Implication

Spectroscopic analysis reveals nine new bands and rotational perturbations in diatomic carbon, identifying a previously unknown electronic state and refining molecular constants.

Key Points

To extend rotational measurements of the Phillips band system of diatomic carbon and provide a comprehensive survey of the molecular constants and potential curves for all known states.
Measured nine newly identified bands of the Phillips system of C2 and extended measurements of three previously known bands to higher rotational quantum numbers.
Calculated revised molecular constants and evaluated rotational perturbations in the lower and upper electronic states to deduce properties of interacting states.
Evaluated principal molecular constants for the lower state (re = 1.2425 Å, ωe = 1854.71 cm⁻¹) and the upper state (re = 1.3184 Å, ωe = 1608.35 cm⁻¹, Te = 8391.00 cm⁻¹).
Detected rotational perturbations (<0.68 cm⁻¹) in both states, tracing perturbations in the upper state to an unidentified state with approximate constants Be ≈ 1.87 cm⁻¹ and Te ≈ 13310 cm⁻¹.
Constructed a general summary of molecular constants and an updated potential curve diagram for all known electronic states of C2.

Cite This Study

Ballik et al. (1963) studied this question.

synapsesocial.com/papers/6a7e2fe3f6941e90164c43e0 https://doi.org/10.1086/147486

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January 1, 1963The Astrophysical Journal

An Extension of the Phillips System of C₂ and a Survey of C₂ States.

View Full Paper

Ask AI

Bookmark

Authors

EBE. A. BallikBrockhouse Institute for Materials Research DRDanielle Ramsay

Discussion

Member takes

Implication

Spectroscopic analysis reveals nine new bands and rotational perturbations in diatomic carbon, identifying a previously unknown electronic state and refining molecular constants.

Key Points

To extend rotational measurements of the Phillips band system of diatomic carbon and provide a comprehensive survey of the molecular constants and potential curves for all known states.
Measured nine newly identified bands of the Phillips system of C2 and extended measurements of three previously known bands to higher rotational quantum numbers.
Calculated revised molecular constants and evaluated rotational perturbations in the lower and upper electronic states to deduce properties of interacting states.
Evaluated principal molecular constants for the lower state (re = 1.2425 Å, ωe = 1854.71 cm⁻¹) and the upper state (re = 1.3184 Å, ωe = 1608.35 cm⁻¹, Te = 8391.00 cm⁻¹).
Detected rotational perturbations (<0.68 cm⁻¹) in both states, tracing perturbations in the upper state to an unidentified state with approximate constants Be ≈ 1.87 cm⁻¹ and Te ≈ 13310 cm⁻¹.
Constructed a general summary of molecular constants and an updated potential curve diagram for all known electronic states of C2.

Cite This Study

Ballik et al. (1963) studied this question.

synapsesocial.com/papers/6a7e2fe3f6941e90164c43e0 https://doi.org/10.1086/147486

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