1999
Temperature Dependent Solvent Effects in Photochemistry of 1-Phenylpentan-1-ones
KLÁN, Petr a Jaromír LITERÁKZákladní údaje
Originální název
Temperature Dependent Solvent Effects in Photochemistry of 1-Phenylpentan-1-ones
Autoři
KLÁN, Petr (203 Česká republika, garant) a Jaromír LITERÁK (203 Česká republika)
Vydání
Collection of Czechoslovak Chemical Communications, Prague, Inst. Org. Chem. Bioch. Czech Acad. Sci. 1999, 0010-0765
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10401 Organic chemistry
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 0.717
Kód RIV
RIV/00216224:14310/99:00001259
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000085090700008
Klíčová slova česky
Fotochemie
Klíčová slova anglicky
Photochemistry
Štítky
Změněno: 7. 4. 2010 18:27, Mgr. Jaromír Literák, Ph.D.
V originále
Temperature dependent solvent effects have been investigated on the Norrish Type II reaction of 1-phenylpentan-1-one and its p-methyl derivative. Efficiencies of the photoreaction were studied in terms of solvent polarity and base addition as a function of temperature. Such a small structure change as the p-methyl substitution in 1-phenylpentan-1-one altered the temperature dependent photoreactivity in presence of weak bases. The experimental results suggest that the hydrogen bonding between the Type II biradical intermediate OH group and the solvent is weaker for 1-(4-methylphenyl)pentan-1-one than that for 1-phenylpentan-1-one at 20 degrees C but the interactions probably vanish in both cases at 80 degrees C.
Česky
Temperature dependent solvent effects have been investigated on the Norrish Type II reaction of 1-phenylpentan-1-one and its p-methyl derivative. Efficiencies of the photoreaction were studied in terms of solvent polarity and base addition as a function of temperature. Such a small structure change as the p-methyl substitution in 1-phenylpentan-1-one altered the temperature dependent photoreactivity in presence of weak bases. The experimental results suggest that the hydrogen bonding between the Type II biradical intermediate OH group and the solvent is weaker for 1-(4-methylphenyl)pentan-1-one than that for 1-phenylpentan-1-one at 20 degrees C but the interactions probably vanish in both cases at 80 degrees C.
Návaznosti
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