Abstract
Spin-orbit coupling is essential in lanthanide complexes for raising the yield of triplet excited state where the energy transfer to lanthanide ion mainly proceeds from, and therefore the sensitization efficiency of the lanthanide ion. However, since spin-orbit coupling mixes states of different multiplicity, strong spin-orbit coupling means that the decay of triplet excited state to the ground state is also enhanced, lowering the sensitization efficiency. This chapter explains the effect of spin-orbit coupling on the sensitization efficiency in [Ln9(μ-OH)10(butyl salicylate)16]NO3 \( \left( {{\text{Ln}} = {\text{Yb}}_{\text{n}} {\text{Gd}}_{{9 - {\text{n}}}} /{\text{Yb}}_{\text{n}} {\text{Lu}}_{{9 - {\text{n}}}} ,n = 0,1,3,7,9} \right) \) where Gd(III) and Lu(III) ions tune the spin-orbit coupling strength. It is revealed that a stronger spin-orbit coupling does not necessarily lead to higher sensitization efficiency.
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Omagari, S. (2019). Spin-Orbit Coupling and Energy Transfer in Nonanuclear Lanthanide Clusters. In: Energy Transfer Processes in Polynuclear Lanthanide Complexes. Springer Theses. Springer, Singapore. https://doi.org/10.1007/978-981-13-6049-7_4
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DOI: https://doi.org/10.1007/978-981-13-6049-7_4
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