Dynamics of electronically excited states in the eumelanin building block 5,6-dihydroxyindole - Physical Chemistry Chemical Physics (RSC Publishing) DOI:10.1039/C9CP00620F thumbnail
Dynamics of electronically excited states in the eumelanin building block 5,6-dihydroxyindole - Physical Chemistry Chemical Physics (RSC Publishing) DOI:10.1039/C9CP00620F
pubs.rsc.org
This will lead to steady-state behavior giving rise to an extremely weak S2(πσ*) transient that will be temporally indistinguishable from the decay of the S1(ππ*) state it is interesting to note that the relative fit amplitude of the τ3 component remains largely invariant at all pump wavelengths whe
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  • This will lead to steady-state behavior giving rise to an extremely weak S2(πσ*) transient that will be temporally indistinguishable from the decay of the S1(ππ*) state
  • it is interesting to note that the relative fit amplitude of the τ3 component remains largely invariant at all pump wavelengths where it is observed (278–241 nm).
  • For example, the gas-phase S1(ππ*) lifetime of 4-tert-butylcatechol following 267 nm excitation increases by a factor of 19 upon O–H deuteration as decay of this state proceeds via tunneling under a barrier formed by a S1(ππ*)/S2(πσ*) conical intersection

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