Masao Koizumi - Publications

Affiliations: 
Osaka City University, Ōsaka-shi, Ōsaka-fu, Japan 

58 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
1973 Kikuchi K, Watarai H, Koizumi M. Interaction between Excited β-Naphthol and Pyridine. Hydrogenbond Formation in S* and H-Transfer Reaction in T Bulletin of the Chemical Society of Japan. 46: 749-754. DOI: 10.1246/Bcsj.46.749  0.332
1973 Hoshino M, Koizumi M. Photochemistry of Acridines. XIX. Photoreduction of Acridine in Mixed Solvents Bulletin of the Chemical Society of Japan. 46: 745-748. DOI: 10.1246/Bcsj.46.745  0.303
1973 Miyashita Y, Niizuma S, Kokubun H, Koizumi M. Radical Formation Initiated by the Biphotonic Excitation of Acridone Bulletin of the Chemical Society of Japan. 46: 3373-3377. DOI: 10.1246/Bcsj.46.3373  0.336
1972 Niizuma S, Nakamaru K, Koizumi M. On The Stable Radical Cation Produced During The Photoreduction Of 9,9′-Biacridyl In Ethanol And Its Esr Spectrum Chemistry Letters. 1: 59-64. DOI: 10.1246/Cl.1972.59  0.303
1972 Iwaoka T, Kokubun H, Koizumi M. Interaction between Phenothiazine Triplet State with Several Electron Acceptors Bulletin of the Chemical Society of Japan. 45: 73-77. DOI: 10.1246/Bcsj.45.73  0.342
1972 Hoshino M, Niizuma S, Koizumi M. Photochemistry of Acridines. XVIII. Photoreduction by Nonpolar H-donors and the Disproportionation of C-Radicals Bulletin of the Chemical Society of Japan. 45: 2988-2992. DOI: 10.1246/Bcsj.45.2988  0.327
1972 Hoshino M, Koizumi M. Order of Quencher Participation in Photochemistry. I. Proton Transfer from the Excited p-Hydroxybenzophenone in Mixed Solvents of Cyclohexane and Alcohols Bulletin of the Chemical Society of Japan. 45: 2731-2736. DOI: 10.1246/Bcsj.45.2731  0.301
1972 Nakamaru K, Niizuma S, Koizumi M. Photochemical Reaction of 9-Chloroacridine in Aerated and Deaerated Ethanol. II. Studies by Means of a Flash Technique Bulletin of the Chemical Society of Japan. 45: 2445-2448. DOI: 10.1246/Bcsj.45.2445  0.343
1971 Iwaoka T, Kokubun H, Koizumi M. Mechanistic Studies on the Photochemical Oxidation of Phenothiazine with Oxygen in Ethanol Bulletin of the Chemical Society of Japan. 44: 341-347. DOI: 10.1246/Bcsj.44.341  0.322
1971 Kikuchi K, Kokubun H, Koizumi M. Studies on Triplet Energy Transfer by Means of an Emission-Absorption Flash Technique. II. Mixed Triplet-Triplet Annihilation in Ethanol Bulletin of the Chemical Society of Japan. 44: 1527-1534. DOI: 10.1246/Bcsj.44.1527  0.339
1971 Nakamaru K, Niizuma S, Koizumi M. Photochemical Reaction of 9-Cl-Acridine in Aerated and Deaerated Ethanol. I Bulletin of the Chemical Society of Japan. 44: 1256-1261. DOI: 10.1246/Bcsj.44.1256  0.342
1970 Iwaoka T, Niizuma S, Koizumi M. Photoreduction of Phenazine in Alcohols and by EDTA in the Aqueous Solution Bulletin of the Chemical Society of Japan. 43: 2786-2795. DOI: 10.1246/Bcsj.43.2786  0.383
1969 Nemoto M, Kokubun H, Koizumi M. Determination of S*-T Transition Probabilities of Some Xanthene and Thiazine Dyes on the Basis of T-Energy Transfer. II. Results in the Aqueous Solution Bulletin of the Chemical Society of Japan. 42: 2464-2470. DOI: 10.1246/Bcsj.42.2464  0.35
1969 Usui Y, Iwanaga C, Koizumi M. Reactions of Singlet Oxygen and Half-reduced Oxygen which are Produced Simultaneously by the Interaction of Triplet Dye and Oxygen Bulletin of the Chemical Society of Japan. 42: 1231-1239. DOI: 10.1246/Bcsj.42.1231  0.314
1969 Nemoto M, Kokubun H, Koizumi M. Determination of the S*–T Transition Probabilities of Some Xanthene and Thiazine Dyes on the Basis of the T-Energy Transfer. I. Experiment in Ethanol Solutions Bulletin of the Chemical Society of Japan. 42: 1223-1230. DOI: 10.1246/Bcsj.42.1223  0.336
1969 Nemoto M, Kokubun H, Koizumi M. Determination of the S*–T transition probability of acridine dyes by the method of sensitized delayed fluorescence Journal of the Chemical Society D: Chemical Communications. 1095-1096. DOI: 10.1039/C29690001095  0.323
1968 Niizuma S, Okuda M, Koizumi M. The Behavior of Radical Anion of Acridine as Revealed from ESR Studies Bulletin of the Chemical Society of Japan. 41: 795-799. DOI: 10.1246/Bcsj.41.795  0.319
1968 Yamashita H, Kokubun H, Koizumi M. Fluorescence Quenching and the Charge Transfer in the Excited State. III. Flash Photolytic Studies Bulletin of the Chemical Society of Japan. 41: 2312-2319. DOI: 10.1246/Bcsj.41.2312  0.392
1968 Niizuma S, Koizumi M. Radicals Produced by UV Irradiation of Acridan and Acridine in Glassy and Crystalline Medium at 77°K Bulletin of the Chemical Society of Japan. 41: 1090-1096. DOI: 10.1246/Bcsj.41.1090  0.32
1967 Usui Y, Koizumi M. An Interpretation of the Photochemical Behavior of a Dye-Reducing Agent-Oxygen System on the Basis of a Switch-over of the Primary Processes Bulletin of the Chemical Society of Japan. 40: 440-446. DOI: 10.1246/Bcsj.40.440  0.312
1967 Niizuma S, Ikeda Y, Koizumi M. Photochemical Reaction between Acridine and Acridan in the Presence and in the Absence of Oxygen. I. Studies by the Steady Light Illumination Bulletin of the Chemical Society of Japan. 40: 2249-2253. DOI: 10.1246/Bcsj.40.2249  0.309
1966 Komiyama T, Miwa T, Koizumi M. Studies of the Quenching of the Fluorescence of Acridine Orange from the Standpoint of Charge-Transfer Bulletin of the Chemical Society of Japan. 39: 2597-2602. DOI: 10.1246/Bcsj.39.2597  0.342
1966 Miwa T, Koizumi M. The Quenching Action of Benzoic Acid and Methylbenzoate on the Fluorescence of Naphthalene Derivatives. III. The Solvent Effect on the Quenching of the Fluorescence of Dimethylnaphthylamine by Methylbenzoate Bulletin of the Chemical Society of Japan. 39: 2588-2597. DOI: 10.1246/Bcsj.39.2588  0.346
1966 Ohno T, Kato S, Koizumi M. Intermediates in the Photoreduction of Eosine as Revealed by a Flash-Photolysis Study Bulletin of the Chemical Society of Japan. 39: 232-239. DOI: 10.1246/Bcsj.39.232  0.332
1966 Kira A, Ikeda Y, Koizumi M. Reactive Species in the Photochemical Hydrogenation of Acridine in Ethanol Bulletin of the Chemical Society of Japan. 39: 1673-1678. DOI: 10.1246/Bcsj.39.1673  0.34
1966 Kira A, Kato S, Koizumi M. Studies of the Photoreduction of Acridine in Ethanol by the Flash Technique Bulletin of the Chemical Society of Japan. 39: 1221-1227. DOI: 10.1246/Bcsj.39.1221  0.339
1965 Miwa T, Koizumi M. The Quenching Action of Benzoic Acid and Methyl Benzoate on the Fluorescene of Naphthalene Derivatives. II Bulletin of the Chemical Society of Japan. 38: 1651-1659. DOI: 10.1246/Bcsj.39.1651  0.327
1965 Momose Y, Uchida K, Koizumi M. An Attempt to Determine Fluorescein's S–T Transition Probability and a Preliminary Investigation of the Behavior of Its Semiquinone in an Alkaline Solution Bulletin of the Chemical Society of Japan. 38: 1601-1609. DOI: 10.1246/Bcsj.38.1601  0.329
1964 Kato S, Morita M, Koizumi M. Studies of the Transient Intermediates in the Photoreduction of Methylene Blue Bulletin of the Chemical Society of Japan. 37: 117-124. DOI: 10.1246/Bcsj.37.117  0.315
1964 Koizumi M, Obata H, Hayashi S. Studies of the Photoreduction of Thiazine Dyes in Aqueous Solutions Bulletin of the Chemical Society of Japan. 37: 108-116. DOI: 10.1246/Bcsj.37.108  0.321
1963 Niizuma S, Koizumi M. The Photoreduction of Acridine in Deaerated and Aerated Alcohol Solutions. II. Bulletin of the Chemical Society of Japan. 36: 1629-1636. DOI: 10.1246/Bcsj.36.1629  0.331
1963 Miwa T, Koizumi M. The Quenching Action of Pyridine and Quinoline on the Fluorescence of Naphthalene Derivatives Bulletin of the Chemical Society of Japan. 36: 1619-1629. DOI: 10.1246/Bcsj.36.1619  0.324
1962 Uchida K, Koizumi M. Photosensitized Oxidation of Leuco-uranine. II. Kinetics of an Acridine-sensitized Photoöxidation in the Deaerated Solution Bulletin of the Chemical Society of Japan. 35: 1875-1881. DOI: 10.1246/Bcsj.35.1875  0.358
1962 Uchida K, Koizumi M. Photosensitized Oxidation of Leuco-uranine. I. Qualitative Studies of the Nature of the Reaction in the Deaerated Solution Bulletin of the Chemical Society of Japan. 35: 1871-1875. DOI: 10.1246/Bcsj.35.1871  0.307
1962 Uchida K, Kato S, Koizumi M. Photosensitized Oxidation of Leuco-uranine and the Identification of the Photobleached Product of Uranine in Ethanol Solution Bulletin of the Chemical Society of Japan. 35: 16-22. DOI: 10.1246/Bcsj.35.16  0.374
1961 Usui Y, Koizumi M. Photoreduction of Methylene Blue by the Visible Light in the Aqueous Solution Containing Certain Kinds of Inorganic Salts. III. Kinetic Treatment of the Reaction Bulletin of the Chemical Society of Japan. 34: 1651-1658. DOI: 10.1246/Bcsj.34.1651  0.355
1961 Watanabe A, Koizumi M. Dye-sensitized Photopolymerization of Vinyl Compounds. Polymerization of Acrylonitrile by Stannous Chloride and Acriflavine. II Bulletin of the Chemical Society of Japan. 34: 1086-1093. DOI: 10.1246/Bcsj.34.1086  0.325
1961 Usui Y, Obata H, Koizumi M. Photoreduction of Methylene Blue by Visible Light in the Aqueous Solution Containing Certain Kinds of Inorganic Salts. I. General Features of the Reaction Bulletin of the Chemical Society of Japan. 34: 1049-1056. DOI: 10.1246/Bcsj.34.1049  0.358
1961 Kato S, Minagawa S, Koizumi M. Photoreduction of Acridine in Deaerated and Aerated Ethanol Solutions Bulletin of the Chemical Society of Japan. 34: 1026-1031. DOI: 10.1246/Bcsj.34.1026  0.332
1960 Kato S, Watanabe T, Nagaki S, Koizumi M. Primary Processes in the Photobleaching of Eosin as Revealed by the Flash Technique Bulletin of the Chemical Society of Japan. 33: 262-265. DOI: 10.1246/Bcsj.33.262  0.361
1960 Uchida K, Kato S, Koizumi M. Chemical Behaviors of the Intermediates Produced during the Reductive Photobleaching of Eosin in the Evacuated Alcoholic Solution Bulletin of the Chemical Society of Japan. 33: 169-173. DOI: 10.1246/Bcsj.33.169  0.337
1959 Kato S, Onodera Y, Koizumi M. Retarding Effect of Uranine Upon the Reductive Photobleaching of Eosine in Alcoholic Solution. (Relative Stabilities of the Semiquinones of Xanthene Dyes.). Nippon Kagaku Kaishi. 80: 1382-1384. DOI: 10.1246/Nikkashi1948.80.12_1382  0.302
1959 Obata H, Kogasaka K, Koizumi M. Photochemical Reactions between Methylene Blue and Tri-, Di- and Monomethylamine. III. The Behavior of Methylene Blue in the Presence of Oxygen Bulletin of the Chemical Society of Japan. 32: 125-132. DOI: 10.1246/Bcsj.32.125  0.346
1958 Koizumi M, Obata H. The Formation of Stable Semiquinone of Methylene Blue by the Irradiation of Visible Light and γ-Rays Bulletin of the Chemical Society of Japan. 31: 823-827. DOI: 10.1246/Bcsj.31.823  0.325
1957 Kato S, Koizumi M. Studies on the Organic Phosphorescence. II. A Revision of Lewis’ Mechanism for the Phosphorescence Bulletin of the Chemical Society of Japan. 30: 27-33. DOI: 10.1246/Bcsj.30.27  0.304
1956 Koizumi M, Mataga N. The Effect of Environment upon the Colour of Organic Unsaturated Compounds Journal of Synthetic Organic Chemistry Japan. 14: 181-185. DOI: 10.5059/Yukigoseikyokaishi.14.181  0.446
1956 Imamura M, Koizumi M. Irreversible Photobleaching of the Solution of Fluorescent Dyes. III. Photoreaction of Eosine in the Aqueous Alcoholic Solutions under Evacuated State Bulletin of the Chemical Society of Japan. 29: 913-918. DOI: 10.1246/Bcsj.29.913  0.374
1956 Imamura M, Koizumi M. Irreversible Photobleaching of the Solution of Fluorescent Dyes. II. Photobleaching of the Alcoholic Solution of Eosine in Vacuo Bulletin of the Chemical Society of Japan. 29: 899-903. DOI: 10.1246/Bcsj.29.899  0.359
1956 Mataga N, Kaifu Y, Koizumi M. Solvent Effects upon Fluorescence Spectra and the Dipolemoments of Excited Molecules Bulletin of the Chemical Society of Japan. 29: 465-470. DOI: 10.1246/Bcsj.29.465  0.552
1956 Mataga N, Kaifu Y, Koizumi M. On the Base Strength of Some Nitrogen Heterocycles in the Excited State Bulletin of the Chemical Society of Japan. 29: 373-379. DOI: 10.1246/Bcsj.29.373  0.546
1956 Mataga N, Kaifu Y, Koizumi M. Hydrogen Bonding Effect on the Fluorescence of π-Electron System Bulletin of the Chemical Society of Japan. 29: 115-122. DOI: 10.1246/Bcsj.29.115  0.505
1955 Mataga N, Kaifu Y, Koizumi M. The Solvent Effect on Fluorescence Spectrum, Change of Solute-Solvent Interaction during the Lifetime of Excited Solute Molecule Bulletin of the Chemical Society of Japan. 28: 690-691. DOI: 10.1246/Bcsj.28.690  0.546
1955 Imamura M, Koizumi M. Irreversible Photobleaching of the Solution of Fluorescent Dyes. I. Kinetic Studies on the Primary Process Bulletin of the Chemical Society of Japan. 28: 117-124. DOI: 10.1246/Bcsj.28.117  0.34
1955 Koizumi M, Watanabe A, Kuroda Z. Dye-sensitized Photopolymerization of Styrene Nature. 175: 770-771. DOI: 10.1038/175770A0  0.326
1955 Mataga N, Kaibe Y, Koizumi M. Equilibrium of Hydrogen-Bond Formation in the Excited State Nature. 175: 731-732. DOI: 10.1038/175731B0  0.358
1954 Mataga N, Koizumi M. Influence of the Addition of High Molecular Electrolyte upon the Absorption Spectra and Fluorescence of Organic Dyestuffs. III Bulletin of the Chemical Society of Japan. 27: 194-197. DOI: 10.1246/Bcsj.27.194  0.519
1953 Koizumi M, Mataga N. Physicochemical Studies of Organic Dyestuffs in Relation to Photochemistry. II. Influence of the Addition of K-Polyvinylsulfate upon the Absorption Spectra and Fluorescence of Rhodamine 6G in Aqueous Solution Bulletin of the Chemical Society of Japan. 26: 115-119. DOI: 10.1246/Bcsj.26.115  0.534
1952 Koizumi M, Mataga N. Studies on the Interactions beween Organic Dyestuffs and Polymers. I:Effect of K-Polyvinylsulfate on the Absorption Spectrum and Fluorescence of Rhodamine 6G Aqueous Solution Nippon Kagaku Kaishi. 73: 814-816. DOI: 10.1246/Nikkashi1948.73.814  0.327
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