Abstract
Measurement of relative band strengths of 10 absorption bands of the E^1Π_u-X^1Σ_g^+ system of diatomic silver, ^(107,109)Ag_2, was performed for the first time. Theoretical analysis of the experimental data, based on Rydberg-Klein-Rees potential energy curves, revealed that assumption of the r-centroid approximation is valid for this system. Comparison of the measured and computed band strength ratios for 5 pairs of bands having common lower levels led to the following linear relative electronic transition moment function for the ^(107,109)Ag_2 E-X band system: R_e(r_(V'V"))=236r_(V'V")−564, in arbitrary units, over the 2.65–2.73 A of internuclear distance.
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