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Unexpected intersystem crossing

Intersystem crossing plays a role in the mechanism of many reactive collisions between atomic species and organic molecules, and has been generally observed when the reactants are still approaching one another. Now, intersystem crossing has been observed to also occur after their initial interaction.

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Change history

  • 07 February 2019

    In the version of this News & Views originally published, Fig. 1b incorrectly displayed the chemical formula “CH3NHCH3”. This has been corrected to “CH3NHCH2”.


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Correspondence to Luis Bañares.

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Fig. 1: Two different mechanisms of intersystem crossing (ISC) in reactive collisions.