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Pregled bibliografske jedinice broj: 925013

Photoelimination of Nitrogen from Polycyclic Diazirines: Spectroscopic Study and Supramolecular Control of Photoreactivity


(Department of Chemistry, University of Victoria) Basarić, Nikola; Šumanovac Ramljak, Tatjana; Alešković, Marija; Šekutor, Marina; Matković, Marija; Bohne, Cornelia; Mlinarić-Majerski, Kata
Photoelimination of Nitrogen from Polycyclic Diazirines: Spectroscopic Study and Supramolecular Control of Photoreactivity // CECP 2018 - Central European Conference on Photochemistry
Bad Hofgastein, 2018. str. O12-O12 (predavanje, međunarodna recenzija, sažetak, znanstveni)


Naslov
Photoelimination of Nitrogen from Polycyclic Diazirines: Spectroscopic Study and Supramolecular Control of Photoreactivity

Autori
Basarić, Nikola ; Šumanovac Ramljak, Tatjana ; Alešković, Marija ; Šekutor, Marina ; Matković, Marija ; Bohne, Cornelia ; Mlinarić-Majerski, Kata

Kolaboracija
Department of Chemistry, University of Victoria

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

Izvornik
CECP 2018 - Central European Conference on Photochemistry / - Bad Hofgastein, 2018, O12-O12

Skup
CECP 2018 - Central European Conference on Photochemistry

Mjesto i datum
Bad Hofgastein, Austija, 04-08.02.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Diazirines, carbenes, transient spectroscopy, supramolecular chemistry

Sažetak
Photochemical elimination of nitrogen from diazirine derivatives and formation of carbene intermediates has been intensively investigated by physical-organic chemical community because of the fundamental interest in carbene reactivity [1]. Platz et al. reported spectroscopic studies on adamantane diazirine derivative 1 [2], whereas Bonneau, Wirz et al. indirectly proved the presence of carbenes by trapping them with pyridine, resulting in the corresponding ylides [3]. However, a direct spectroscopic detection of the corresponding adamantane carbene by laser flash photolysis (LFP) still has not been reported. As part of our interest in the chemistry of carbenes and synthesis of strained molecules [4], we have prepared diazirines 1-3 and studied their photochemical reactivity in different solvents and inclusion complexes. We found that supramolecular hosts affect the photochemical reaction selectivity in a way that may be correlated with the excited state manifold of the photochemical reaction, contrary to previous reports of Ramamurthy et al. [5] Moreover, reactivity of 1-3 has been investigated by LFP, allowing for a direct detection of singlet adamantyl and pentacycloundecanyl (PCU) carbenes in pentane solution at -100 °C.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2014-09-6312 - Supramolekulska kontrola fotokemijskih reakcija eliminacije (Nikola Basarić, )

Ustanove
Institut "Ruđer Bošković", Zagreb