Reactivity of excited triplet alkyl ketones in solution. I. Quenching and hydrogen abstraction of triplet acetone.
スポンサーリンク
概要
- 論文の詳細を見る
The photolysis of acetone in various solutions has been investigated by analysis of reaction products as well as absorption spectroscopy. The rate of photolysis of acetone in aqueous solution decreases on addition of methanol or with increasing concentration of acetone, being much higher than that in methanol and heptane solutions. The results suggest that intermolecular hydrogen abstraction plays a significant role in quenching of triplet acetone. This is supported by spectroscopic studies which reveal formation of the enol form of acetone as an intermediate in the decay process of triplet acetone.
- 公益社団法人 日本化学会の論文
著者
-
Anpo Masakazu
Department Of Applied Chemistry Colledge Of Engineering University Of Osaka Prefecture
-
Kubokawa Yutaka
Department of Applied Chemistry College of Engineering University of Osaka Prefecture
関連論文
- Preparation of Crystalline TiO_2 Thin Film Photocatalysts on Polycarbonate Substrates by a RF-magnetron Sputtering Deposition Method
- The Preparation of TiO_2 Nanoparticle Photocatalysts by a Flame Method and Their Photocatalytic Reactivity for the Degradation of 2-Propanol
- Preparation of Visible Light-responsive TiO_2 Thin Film Photocatalysts by an RF Magnetron Sputtering Deposition Method and Their Photocatalytic Reactivity
- Photoluminescence Properties of Mo-MCM-41 Mesoporous Molecular Sieves and Their Photocatalytic Reactivity for the Decomposition of NOx
- Photocatalytic Reduction of CO_2 with H_2O on Ti-MCM-41 and Ti-MCM-48 Mesoporous Zeolites at 328 K
- Photoluminescence Property of Titanium Silicalite-2 Catalyst and Its Photocatalytic Reactivity for the Direct Decomposition of NO at 295 K
- Stoichiometric Decomposition of Pure Water over Pt-Loaded Ti/B Binary Oxide under UV-Irradiation
- The Characteristics of the Fluorescence Spectra of Rhodamine B Molecules Doped in Si-Ti Binary Oxide System by the Sol-Gel Method
- Reduction of CO_2 with H_2O on TiO_2(100) TiO_2(110) Single Crystals under UV-irradiation
- Photoluminescence Properties of the Vanadium Silicalite-1 Catalyst and Its Photocatalytic Reactivity for the Reduction of NO with Propane
- The Photocatalytic Decomposition of Nitric Oxide on the Silver(I) Ion-exchanged ZSM-5 Catalyst
- Selective Dimerization and Hydrogenation of Ethylene on Active Zirconium Oxide with Coordinatively Unsaturated Surface Sites
- The Photocatalytic Isomerization of 2-Butenes on ZrO_2 Catalyst with Low Coordinated Surface Sites
- Local structures, excited states, and photocatalytic reactivities of highly dispersed catalysts constructed within zeolites
- Preparation of TiO_2 Photocatalysts by Multi-gelation and Their Photocatalytic Reactivity for the Degradation of 2-Propanol
- Photocatalytic Degradation of 2-Propanol Diluted in Water with TiO_2 Photocatalyst Loaded on Si_3N_4
- Preparation, Characterization, and Reactivities of Highly Functional Titanium Oxide-Based Photocatalysts Able to Operate under UV-Visible Light Irradiation : Approaches in Realizing High Efficiency in the Use of Visible Light
- The Effect of the Si/Al Ratio on the Photoluminescence Properties of Cu(I)SAPO-5 Catalysts
- Photophysicochemical Properties of Chlorophyll-a Adsorbed on Mg-containing Mesoporous Silica
- Carbon and Nitrogen-codoped TiO_2 with High Visible Light Photocatalytic Activity
- Enhancement of the Photocatalytic Reactivity of Unique Rectangular Column-structured TiO_2 Photocatalysts by Incorporating Nanosized Metal Particles
- Femtosecond Diffuse Reflectance Spectroscopy on Some Standard TiO_2 Powder Catalysts
- Characterization of Fe - Oxide Species Prepared onto ZSM - 5 Zeolites and Their Role in the Photocatalytic Decomposition of N_2O into N_2 and O_2
- Phosphorescence and Photochemical Properties of Benzophenone Adsorbed on Alkali Cations-Exchanged Zeolite
- Fluorescence Properties of BDD Molecules Doped in Si-Ti Binary Oxide Systems by the Sol-Gel Method
- Photocatalytic Decomposition of N_2O into N_2 and _2 on the Silver(I) Ion-Exchanged ZSM-5 Catalyst
- Photocatalytic Reduction of CO_2 with H_2O on Titanium Oxides Prepared within the FSM-16 Mesoporous Zeolite
- Investigation of Chemisorption by Desorption Rate Measurement; CO2 on ZnO and NiO; CO on NiO
- Rate of Desorption from a Heterogeneous Surface
- Catalytic activity of MoO3 and V2O5 highly dispersed on TiO2 for oxidation reactions.
- Photocatalytic isomerization of butenes over TiO2. Photo-formed active species and characteristics of reaction.
- Photocatalyzed isomerization of butenes over metal sulfides. High photocatalytic activity and its origin.
- Photocatalytic isomerization of butenes over ZnO and SnO2.
- Oxidation of propylene adsorbed on metal oxides. Oxygen species in catalytic oxidation.
- Photophysics on solid surface. Time-resolved fluorescence spectra of pyrene adsorbed on calcinated Vycor glass.
- The nature of oxygen species responsible for propene oxidation over V-Mo and V-Sn oxides.
- Photocatalysis on native and platinum-loaded TiO2 and ZnO catalysts. Origin of different reactivities on wet and dry metal oxides.
- Photochemistry in the Adsorbed Layer. V. Effects of Surface Pretreatments upon the Photolysis of Adsorbed 2-Pentanone
- Catalytic activity of V-Sn oxides for oxidation reactions.
- Photolyses of Aliphatic Ketones Adsorbed on Porous Vycor Glass
- Infrared study of the oxidation of 2-propanol on TiO2.
- Infrared studies of the oxidation of 2-propanol on ZnO.
- A common factor determining the features of the photocatalytic hydrogenation and isomerization of alkenes over Ti-Si oxides.
- Oxidation of Propylene Adsorbed on Oxide Catalysts
- Reactions in the Adsorbed Layer: Hydrogenation of Acetone on Nickel Catalysts
- Reactivity of excited triplet alkyl ketones in solution. I. Quenching and hydrogen abstraction of triplet acetone.
- Photochemistry in the adsorbed layer. VIII. Lifetimes of excited alkyl ketones and alkyl radicals adsorbed on porous Vycor glass.