Abstract
The dynamics of excited streets in a special class of linear carbon chains, e.g. dinaphthyl polyynes, has been investigated by ultrafast transient absorption spectroscopy and DFT//TDDFT calculations. The ultrafast formation of a narrow photo-induced absorption band has been observed and assigned to an inter-system crossing event bringing to the formation of triplet excited streets.
Highlights
The ultrafast formation of a narrow photoinduced absorption band has been observed and assigned to an inter-system crossing event bringing to the formation of triplet excited states
Polyynes are a class of linear carbon chains consisting of alternating single and triple carbon bonds (C−CC/ ≡C)
The most concentrated species are characterized by n=2,3,4 triple bonds
Summary
Polyynes are a class of linear carbon chains consisting of alternating single and triple carbon bonds (C−CC/ ≡C). The dynamics of excited states in a special class of linear carbon chains, e.g. dinaphthyl polyynes, has been investigated by ultrafast transient absorption spectroscopy and DFT//TDDFT calculations.
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