Structure and Spectroscopy of Selected Lanthanide Compounds with Coordination Number from 9 to 6 |
| J. Legendziewicz Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland |
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| The lecture deals with a group of lanthanide compounds in which some structural factors influence, in a special way, spectroscopic properties of the systems under investigation. The following systems were chosen: three with polymeric structure, two of the dimer type, one a pseudo-dimer system with coordination number (C.N.) = 7, and an octahedral compound of LnL6 type. The crystal structures of the systems under consideration will be shown, their absorption and excitation spectra will be presented and confronted with X-ray data. Radiative and nonradiative processes will be considered and the role of cooperative interactions analyzed. Some aspects of dynamics in solids will be done, too. |
| DOI: 10.12693/APhysPolA.90.127 PACS numbers: 61.66.Fn, 78.20.Dj, 78.20.Wc, 78.55.Hx, 78.66.-w |