𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Luminescence Spectroscopy and Crystal Field Simulations of Europium Propylenediphosphonate EuH[O3P(CH2)3PO3] and Europium Glutarate [Eu(H2O)]2[O2C(CH2)3CO2]3·4H2O

✍ Scribed by F. Serpaggi; G. Férey; E. Antic-Fidancev

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
175 KB
Volume
148
Category
Article
ISSN
0022-4596

No coin nor oath required. For personal study only.

✦ Synopsis

The results of investigations on the photoluminescence of two europium hybrid compounds, EuH

), are presented. In both compounds one local environment is found for the rare earth (Re) ion and the symmetry of the Re polyhedron is low (Cs) as evidenced by the Eu 3؉ luminescence studies. The electrostatic crystal 5eld (cf ) parameters of the 7 F multiplet are obtained by the application of the phenomenological cf theory. The simulations using C2v symmetry for the rare earth ion give good agreement between the calculated and the experimental 7 F0+4 energy level schemes. The observed optical data are discussed in relation to the crystal structure of the compounds.

📜 SIMILAR VOLUMES

UV absorption spectra of HO2, CH3O2, C2H
UV absorption spectra of HO2, CH3O2, C2H5O2, and CH3C(O)CH2O2 radicals and mechanism of the reactions of F and Cl atoms with CH3C(O)CH3
✍ Ole J. Nielsen; Matthew S. Johnson; Timothy J. Wallington; Lene K. Christensen; 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 314 KB

## Abstract Pulse radiolysis techniques were used to measure the gas phase UV absorption spectra of the title peroxy radicals over the range 215–340 nm. By scaling to σ(CH~3~O~2~)~240 nm~ = (4.24 ± 0.27) × 10^−18^, the following absorption cross sections were determined: σ(HO~2~)~240 nm~ = 1.29 ± 0