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21 August, 05:14

Intersystem crossing is:

a) a nonradiative transition between states with the same spin.

b) a radiative transition between states with different spin.

c) a radiative transition between states with the same spin.

d) a nonradiative transition between the vibrational levels of the same electronic state.

e) a nonradiative transition between states with different spin.

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Answers (1)
  1. 21 August, 08:34
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    An intersystem crossing (ISC) is a non-radiative process that involves the transition between two electronic states with different spin multiplicity. That is, when an electron is excited in a molecule in a basal singlet state (either by absorption or radiation) into a state of greater energy, an excited singlet or triplet state can be obtained.

    Therefore, ISC is understood as an a non radio active transition between states with different spin multiplicity.

    Correct answer is C: a radiative transition between states with the same spin.
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Home » Physics » Intersystem crossing is: a) a nonradiative transition between states with the same spin. b) a radiative transition between states with different spin. c) a radiative transition between states with the same spin.
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