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Nonradiative decay of the lowest excited singlet state of 2-aminopyridine is considerably faster than the radiative decay

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Ab initio calculations reveal that radiative lifetime of the lowest excited singlet state of2-aminopyridine molecule should be around 20 ns, consistent with the molecules of the same typebut is about one order of magnitude larger than the claimed experimental fluorescent lifetime inrecent years. An S1 /S0 conical intersection close to the S1 state has been located, which could be thepossible nonradiative channel that is responsible for the fast decay observed in the experiment.
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Title: Nonradiative decay of the lowest excited singlet state of 2-aminopyridine is considerably faster than the radiative decay
Description:
Ab initio calculations reveal that radiative lifetime of the lowest excited singlet state of2-aminopyridine molecule should be around 20 ns, consistent with the molecules of the same typebut is about one order of magnitude larger than the claimed experimental fluorescent lifetime inrecent years.
An S1 /S0 conical intersection close to the S1 state has been located, which could be thepossible nonradiative channel that is responsible for the fast decay observed in the experiment.

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