Rotational line strengths in4Σ-4Π transition of diatomic molecules

Pramana ◽  
1985 ◽  
Vol 24 (3) ◽  
pp. 503-512
Author(s):  
T K Balasubramanian ◽  
V P Bellary
Keyword(s):  
Diatomic Molecules ◽  
Rotational Line ◽  
Line Strengths

Méthode RAM et Calcul des Fonctions d'Onde Moléculaires Diatomiques et des Facteurs d'Intensité Rotationnelle Tenant Compte du Spin Nucléaire

1973 ◽  
Vol 51 (12) ◽  
pp. 1300-1301 ◽  
Author(s):  
J. L. Féménias ◽  
C. Athénour ◽  
R. Stringat
Keyword(s):  
Electric Dipole ◽  
Nuclear Spin ◽  
Diatomic Molecules ◽  
Electronic States ◽  
Rotational Line ◽  
Line Strengths

Van Vleck's RAM method is used for calculating rotational line strengths in electric dipole transitions between electronic states of diatomic molecules arising from coupling cases which involve the nuclear spin.

Rotational line strengths of the multiplot bands in diatomic molecules

1980 ◽  
Vol 60 ◽  
pp. 147-150
Author(s):  
I. Kcvács ◽  
I. Péczeli ◽  
A. Grandfiterre
Keyword(s):  
Diatomic Molecules ◽  
Rotational Line ◽  
Line Strengths

Rotational line strengths for the photoionization of diatomic molecules

1992 ◽  
Vol 97 (5) ◽  
pp. 2891-2899 ◽  
Author(s):  
Jinchun Xie ◽  
Richard N. Zare
Keyword(s):  
Diatomic Molecules ◽  
Rotational Line ◽  
Line Strengths

Rotational Line Strengths in 3Σ±–3Σ± Transitions with Intermediate Coupling

1971 ◽  
Vol 49 (21) ◽  
pp. 2693-2703 ◽  
Author(s):  
J. B. Tatum ◽  
J. K. G. Watson
Keyword(s):  
Magnetic Dipole ◽  
Electric Dipole ◽  
Diatomic Molecules ◽  
Transition Moment ◽  
Rotational Line ◽  
Intermediate Coupling ◽  
Group Vi ◽  
Transition Moments ◽  
Splitting Constant ◽  
Line Strengths

Rotational line strengths (Hönl–London factors) are calculated for 3Σ±–3Σ± electric dipole transitions, allowing for nonzero values of the splitting constant λ. If the 3Σ states are intermediate between Hund's coupling cases (a) and (b) only one transition moment is required, whereas if there is a tendency to case (c) four transition moments may be required. The resulting formulas are compared with the observed spectra of the diatomic molecules of the Group VI elements. The same formulas are valid for 3Σ±–3Σ± magnetic dipole transitions.

Rotational line strengths in a 5Σ – 5Π transition with application to the A – X system of CrO

1984 ◽  
Vol 62 (12) ◽  
pp. 1610-1615 ◽  
Author(s):  
U. Sassenberg ◽  
A. S.-C. Cheung ◽  
A. J. Merer
Keyword(s):  
Transition Moment ◽  
Rotational Line ◽  
Π State ◽  
Strong Spin ◽  
Line Strengths

Detailed calculations of the line strengths in a 5Σ – 5Π transition as a function of J show that the relative branch intensities in the A – X system of CrO, which do not follow the published formulae for 5Σ(b) – 5Π(a) transitions, can be explained very well in terms of strong spin uncoupling in the 5Π state, with a single perpendicular transition moment dominating. It is emphasized that spin uncoupling affects line strengths by an amount that increases very rapidly with multiplicity, so that algebraic formulae for the pure coupling cases quickly lose their value. An unusual cancellation effect occurs in the main branches of a 5Σ – 5Π transition, nine of which have intensities that drop to zero and then rise again with increasing J.

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