intersystem crossing

physics

Learn about this topic in these articles:

In spectroscopy: Fluorescence
…energy through interstate transfer (intersystem crossing), or (3) lose vibrational energy via molecular collisions.
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In photochemical reaction: Consequences of photoexcitation
…of the same electron spin, intersystem crossing, which involves states of different electron spin, or chemistry.
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In photochemical reaction: Consequences of photoexcitation
…accessing the triplet states (intersystem crossing from S₁) is the most common, though they can also be reached through an extremely weak (that is, improbable) absorption from the ground state directly to the triplets. Because the unpaired electrons of triplet states (with parallel spins) interact more strongly than those…
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In photochemical reaction: Photoprotection
…the other competing processes (fluorescence, intersystem crossing, and photochemistry) are negligible. The absorbed energy is simply dissipated as heat.
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