https://doi.org/10.1051/epjconf/20134105026
Ultrafast spectroscopy of linear carbon chains: the case of dinaphthylpolyynes
1 Center for Nano Science and Technology CNST@Polimi, Istituto Italiano di Tecnologia, via Pascoli 70/3, 20133 Milano, Italy
2 CNR-IFN and Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy
3 Dipartimento di Chimica, Materiali e Ing. Chimica “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy
4 CIMAINA and Dipartimento di Fisica, Universita` di Milano, via Celoria 16, 20133 Milano, Italy
5 Actinium Chemical Research s.r.l., Via Casilina 1626/A, 00133 Roma, Italy
a e-mail: caterina.vozzi@polimi.it
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.
© Owned by the authors, published by EDP Sciences, 2013
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