Nonradiative deactivation of the lowest excited triplet state of the dibenzo-<Emphasis Type="Italic">p</Emphasis>-dioxin molecule |
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Authors: | E A Gastilovich V G Klimenko L V Volkova R N Nurmukhametov |
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Institution: | 1.State Scientific Center of Russian Federation Karpov Institute of Physical Chemistry,Moscow,Russia;2.MAMI Moscow State Technical University,Moscow,Russia |
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Abstract: | In the nonadiabatic approximation, we study how intramolecular interactions affect the nonradiative energy degradation T
1
s
↝ S
0 of triplet sublevels s of the lowest triplet state of the dibenzo-p-dioxin molecule. We consider the role played in the degradation by the shape of promoting high- and low-frequency vibrational
modes and by spin-orbit interactions separately in the carbon backbone of the molecule and in heteroatoms (oxygen). We find
that σ-electrons of oxygen that correspond to the lone pair and to valence electrons play different roles in the nonadiabatic
interaction. |
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Keywords: | |
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