Detailed Information on Publication Record
1999
Temperature Dependent Solvent Effects in Photochemistry of 1-Phenylpentan-1-ones
KLÁN, Petr and Jaromír LITERÁKBasic 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
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10401 Organic chemistry
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
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
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.
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.
Links
| MSM 143100011, plan (intention) |
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