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Pregled bibliografske jedinice broj: 639733

Časopis

Autori: Škalamera, Đani; Mlinarić-Majerski, Kata; Uzelac, Lidija; Kralj, Marijeta; Wan, Peter; Basarić, Nikola
Naslov: Photosolvolysis of bulky (4- hydroxyphenyl)naphthalene derivatives
Izvornik: Photochemical & photobiological sciences (1474-905X) 12 (2013); 2043-2056
Vrsta rada: članak
Ključne riječi: naphthylphenols ; photosolvolyses ; photodehydration ; QMs
Sažetak:
Six new naphthylphenols 7-12, bearing bulky hydroxymethyl substituents on the naphthalene, were synthesized and their photoreactivity investigated by preparative irradiations, fluorescence measurements, and laser flash photolysis. All derivatives (in S1) undergo deprotonation of the phenolic OH in the aqueous solution. As well, fluorescence quenching with HClO4 in the pH range 2-4 indicates that 7-12 can be protonated in S1. Formation of QMs most probably takes place sequentially, triggered by the phenol deprotonation. However, with the present data, a mechanism that involves simultaneous deprotonation and the loss of OH- cannot be ruled out. Photodehydration takes place only for 7, 9, 11 and 12, delivering the corresponding QMs which react with nucleophilic solvents giving the corresponding photosolvolysis products. The other less likely option for the formation of the observed solvolysis products from 7, 9, 11 and 12 may involve some radical species. Photodehydration of 8 and 10 was not observed which may be due to the anticipated high energy of the corresponding sterically-congested QM8 and QM10. The most efficient photosolvolyses were observed for the 2, 6-substituted naphthalenes.
Projekt / tema: 098-0982933-2911, 02.05/25
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
MEDLINE
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Kemija,Temeljne medicinske znanosti
URL Internet adrese: http://pubs.rsc.org/en/content/articlelanding/2013/pp/c3pp50190f/unauth
Broj citata:
Altmetric:
DOI: 10.1039/C3PP50190F
URL cjelovitog teksta:
Google Scholar: Photosolvolysis of bulky (4- hydroxyphenyl)naphthalene derivatives
Upisao u CROSBI: Enidija Lukša (Enidija.Luksa@irb.hr), 26. Kol. 2013. u 15:46 sati



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