Yersin, Hartmut and Hensler, G. and Gallhuber, E. (1987) On the zero-phonon structure of single-crystal [Ru(bpy)₃](PF₆)₂. Inorganica Chimica Acta 132, pp. 187-191.
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Further evidence is presented that in single-crystal [Ru(bpy)₃](PF₆)₂ at low temperatures one observes two zero-phonon lines corresponding to the lowest excited states at 17809 cm⁻¹ (line I, A’₁ ‹—› 1E’ in D’₃) and at 17816 cm⁻¹ (line II, A’₁ ‹—› 2E’). It is shown that the observed electronic states can be adequately described in a model of isolated [Ru(bpy)₃]²⁺ chromophores. The zero-phonon line II has been recorded in absorption, emission and excitation at exactly the same energy. Its molar extinction coefficient has a value of ε ca. 5 1·mol⁻¹·cm⁻¹, while ε for line I is estimated to be about 0.03 1·mol⁻¹·cm⁻¹, and therefore line I could not be detected in absorption. An assignment of the zero-phonon structure to impurity centers - as has been speculated elsewhere - is definitely excluded.
|Institutions:||Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry III - Physical Chemistry (Light and Matter) > Prof. Dr. Hartmut Yersin|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Owner:||Prof. Dr. Hartmut Yersin|
|Deposited On:||07 Mar 2011 09:36|
|Last Modified:||07 Mar 2011 09:36|