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Analysis and Deperturbation of the A2Π and B2Σ+ States of CaF

✍ Scribed by Leonid A. Kaledin; Jonathan C. Bloch; Michael C. McCarthy; Robert W. Field

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
135 KB
Volume
197
Category
Article
ISSN
0022-2852

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✦ Synopsis

A laser excitation spectrum of the (0, 0) and (1, 1) bands of the CaF A 2 ⌸-X 2 ⌺ ϩ system was recorded. The present set of molecular constants for both A 2 ⌸ and B 2 ⌺ ϩ states represents a vast improvement in precision over previously reported values because of the larger number of line position measurements and the use of a more reasonable effective Hamiltonian model which accounts explicitly for the A ϳ B interaction via off-diagonal matrix elements. The principal constants (in cm Ϫ1 ) are

T e 16 526.750(30) 18 840.190(60) A e 71.429(40) A v 0.123(4) e 594.513(50) 572.424(80) e x e 3.031(20) 3.101(37) B e 0.348 781(5) 0.342 345(10) 10 3 ␣ e 2.526(6) 2.577(12) 10 7 D e 4.807 8(3) 4.815(20) r e [Å] 1.937 4(1) 1.955 5(3)

where uncertainties of 1 are given in parentheses.

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