KLÁN, Petr and Jaromír LITERÁK. Temperature Dependent Solvent Effects in Photochemistry of 1-Phenylpentan-1-ones. Collection of Czechoslovak Chemical Communications. Prague: Inst. Org. Chem. Bioch. Czech Acad. Sci., 1999, vol. 64, No 12, p. 2007-2018. ISSN 0010-0765.
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Basic information
Original name Temperature Dependent Solvent Effects in Photochemistry of 1-Phenylpentan-1-ones
Authors KLÁN, Petr (203 Czech Republic, guarantor) and Jaromír LITERÁK (203 Czech Republic).
Edition Collection of Czechoslovak Chemical Communications, Prague, Inst. Org. Chem. Bioch. Czech Acad. Sci. 1999, 0010-0765.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10401 Organic chemistry
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 0.717
RIV identification code RIV/00216224:14310/99:00001259
Organization unit Faculty of Science
UT WoS 000085090700008
Keywords (in Czech) Fotochemie
Keywords in English Photochemistry
Tags Photochemistry
Changed by Changed by: Mgr. Jaromír Literák, Ph.D., učo 13491. Changed: 7/4/2010 18:27.
Abstract
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.
Abstract (in Czech)
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.
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MSM 143100011, plan (intention)Name: Struktura a vazebné poměry, vlastnosti a analýza syntetických a přírodních molekulových ansamblů
Investor: Ministry of Education, Youth and Sports of the CR, Structure and character of bonding, properties and analysis of synthetic and natural molecular ensembles
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