Picosecond Raman Investigation of the Structure and Reactivity of 4,4′-Bipyridine in the S1 State | Zendy

G. Buntinx | Zendy; Luca Bussotti | Zendy; Vincent De Waele | Zendy; Claude Didierjean | Zendy; O. Poizat | Zendy

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Picosecond Raman Investigation of the Structure and Reactivity of 4,4′-Bipyridine in the S₁ State

Author(s) -

G. Buntinx,

Luca Bussotti,

Vincent De Waele,

Claude Didierjean,

O. Poizat

Publication year - 1999

Publication title -

laser chemistry

Language(s) - English

Resource type - Journals

eISSN - 1026-8014

pISSN - 0278-6273

DOI - 10.1155/1999/72170

Subject(s) - picosecond , raman spectroscopy , chemistry , excited state , methanol , singlet state , resonance (particle physics) , excitation , analytical chemistry (journal) , photochemistry , atomic physics , laser , physics , optics , organic chemistry , quantum mechanics

The lowest excited singlet state (S 1 ) of 4,4′-bipyridine (44BPY) has been studied in waterand methanol by using pump-probe time-resolved resonance Raman spectroscopy in thepicosecond time domain. Spectroscopic evidence for a disymmetric S 1 structure withlocalization of the electronic excitation in one of the two pyridyl rings is given. The fastformation of the N-hydro radical 44BPY H •from the S 1 state is clearly observed inmethanol.

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