| Literature DB >> 31699589 |
Vesselin Petrov1, Nina Danchova1, Stoyan Gutzov2.
Abstract
A detailed spectroscopic study of the optical properties of Ho(phen)2(NO3)3 complex is presented. The substance is characterized by UV/Vis spectroscopy, IR - spectroscopy, chemical analysis and X - Ray diffraction. Temperature dependent absorption spectra of Ho(phen)2(NO3)3 in DMF are discussed. A hyperchromic effect at elevated temperatures of the electric dipole absorption transition 5I8→5G6 at 452 nm is observed and a quantitative explanation in the framework of the coth(x) theory of absorption line broadening is suggested. The thermal depopulation of the 5I8 electronic level also is discussed.Entities:
Year: 2019 PMID： 31699589 DOI： 10.1016/j.saa.2019.117527
Source DB: PubMed Journal: Spectrochim Acta A Mol Biomol Spectrosc ISSN： 1386-1425 Impact factor: 4.098