| Energy can be transferred from the singlet state to the triplet state via intersystem crossing. |
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| In isotropic ethanol solutions efficient intersystem crossing is observed with quantum yields around 0.5 being reported. |
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| This time constant reflects, rather, the lifetime of the first excited singlet state of the complex, which decays rapidly owing to intersystem crossing. |
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| A small singlet-triplet energy gap is known to favor intersystem crossing. |
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| The high degree of iodine substitution in this aromatic molecule facilitates intersystem crossing, and rose bengal exhibits significant phosphorescence. |
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