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Ultrafast Transient Absorption of Adamantyl-Phenol (CROSBI ID 685664)

Prilog sa skupa u zborniku | kratko priopćenje | međunarodna recenzija

Forjan, Mateo ; Šekutor Marina ; Basarić, Nikola ; Vdović, Silvije Ultrafast Transient Absorption of Adamantyl-Phenol // Ultrafast Optics 2019: Abstract Book / Jovanović, Igor ; Resan, Bojan ; Osvay, Károly et al. (ur.). SPIE, 2019. str. 502-504 doi: 10.1117/12.2562972

Podaci o odgovornosti

Forjan, Mateo ; Šekutor Marina ; Basarić, Nikola ; Vdović, Silvije

engleski

Ultrafast Transient Absorption of Adamantyl-Phenol

Ultrafast dynamics of adamantyl-phenol was studied by measuring time-resolved absorption changes using transient absorption spectroscopy technique. Adamantyl-phenol molecules dissolved in acetonitrile-water mixture (1:1) were excited by femtosecond laser pulses with the wavelength of 267nm (pump pulse) while their absorption as a function of time was tested with the probe pulses. Probe pulse spectrum was supercontinuum generated in calcium-fluoride (CaF2) crystal pumped by 800nm. Resulting signal was positive, meaning the molecules have negligible fluorescence. After the excitation to first excited electronic state photochemical reaction of photodehydratation takes place and the formation of quinone methide (QM) begins via conical intersection. Quantum-chemical TD-DFT calculations indicate immediate ground state QM formation and the simulated ground state QM spectra is compared to measured one. Obtained results proved the functionality of the used experimental setup which will be used for future research and ultrafast transient absorption measurements of many different samples.

Femtosecond laser ; CPA ; transient absorption ; photochemical reactions ; conical intersection ; quinonemethide ; supercontinuum generation ; third-harmonic generation

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Podaci o prilogu

502-504.

2019.

objavljeno

10.1117/12.2562972

Podaci o matičnoj publikaciji

Ultrafast Optics 2019: Abstract Book

Jovanović, Igor ; Resan, Bojan ; Osvay, Károly ; Coslovich, Giacomo

SPIE

Podaci o skupu

Ultrafast Optics XII

poster

06.10.2019-11.10.2019

Bol, Hrvatska

Povezanost rada

Fizika, Kemija

Poveznice
Indeksiranost