Naslov
Ultrafast Transient Absorption of Diazoalkanes

Autori
Brusar, Vedran ; Forjan, Mateo ; Vdović, Silvije ; Basarić, Nikola ; Alešković, Marija ; Ljubić, Ivan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
28th PhotoIUPAC Symposium on Photochemistry : Book of abstracts / - , 2022, 233-233

Skup
28th PhotoIUPAC Symposium on Photochemistry

Mjesto i datum
Amsterdam, Nizozemska, 17.07.2022. - 22.07.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
carbenes, ultrafast transient absorption, anti-Kasha

Sažetak
Ultrafast dynamics of three different diazoalkanes (1, 2, 3) was investigated with femtosecond transient absorption spectroscopy using third harmonic generated UV pump pulses and broadband white light supercontinuum probe pulses. Diazoalkanes are important reagents in organic synthesis that produce carbenes via photoinduced elimination of nitrogen. Such reactions can occur from higher excited states which allows investigation of anti-Kasha photochemistry.[1] Photogenerated carbenes are widely used as short- lived reactive intermediates where the spin state of carbene plays an important role. We observe intersystem crossing from singlet to triplet state of the carbene[2] formed from 1 but not from 2 or 3. Although being different only by substitution of adamantane for phenol, 2 and 3 display different spectral and temporal features from 1. We aim to unravel reaction pathways with combining measurements and computational studies.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

POVEZANOST RADA