𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Vibronic intensities in the optical absorption spectra of Pr3+ in Cs2NaPrxY1−xCl6: concentration and temperature dependence

✍ Scribed by Thomas Luxbacher; Harald P. Fritzer; Colin D. Flint

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
341 KB
Volume
232
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

The 3H4~3P o transition in the absorption spectra of Pr 3+ in the hexachloroelpasolites Cs2NaPrxY~_xCl6 (X=0.1 to x= 1 ) have been measured from 300 to 10 K. The electronic spectra are dominated by electric-dipole allowed vibronic origins enabled by Herzberg-Teller coupling. The two odd parity vibrations of the [PrCI6] 3-ion (v3 and v4) appear strongly in the vibronic sidebands and are accompanied by weaker lattice vibrations. The small change in the oscillator strength of the vibronic transitions is readily accounted for by the change in lattice parameter with x. There is no evidence for cooperative effects.

📜 SIMILAR VOLUMES

On the temperature dependence of the P(−
On the temperature dependence of the P(−) absorption peak position in the optical spectra of the reaction center of Rhodopseudomonas viridis
✍ Marek Z. Zgierski 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 421 KB

It is shown that the temperature dependence of the positions and widths of the P( -) and P( t ) bands in the spectra of the reaction center of Rhodopseudomonas viridis can be rationalized in terms of a frequency change of the relative motion of the two bacteriochlorophyll molecules forming a special

Optical spectra of the neutral electron
Optical spectra of the neutral electron donor-acceptor complex N,N,N′,N′-tetramethyl-p-phenylenediamine-p-chloranil (TMPD-CA) in solution: Temperature dependence and environmental effects
✍ J.J. André; E. Marchal; A. Bieber 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 600 KB

Optical spectra (1 to 6 eV) of the neutral electron donor-acceptor complex TMPD-CA have been obtained in different solvents includins polar ones such as acetonitie\_ The optical spectra. the dielectric constant and the ESR absorption have been studied in detail as a function of temperature, in the r