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1

Preparations and Spin-spin Interactions of 4,4′-(Triptycene-1,8-diyl)bis(1-methyl-2,6-diphenylpyridinyl) Diradical and Its 1,5-Diyl Isomer

Okada, Keiji, Ueda, Kazumasa, Oda, Masaji, Murai, Hisao, Akiyama, Kimio, Ikegami, Yusaku

Journal:

Chemistry Letters

Year:

1996

File:

PDF, 301 KB

1996

2

ChemInform Abstract: Structural and Chemical Properties of 3,10-Diaza-N,N-dimethyldispiro[5.0.5.3]pentadeca-1,4,8,11-tetraene: A Novel Heterocyclic Dispiro Compound.

Takashi Muramatsu, Azumao Toyota, Mikako Kudou, Yusaku Ikegami, Masataka Watanabe

Journal:

Year:

2000

File:

PDF, 30 KB

2000

3

Magnetic susceptibility of a linear chain antiferromagnet, TANOL, at very low temperatures

Masafumi Kumano, Yusaku Ikegami, Takashi Sato, Shinhachiro Saito

Journal:

Chemical Physics Letters

Year:

1976

Language:

english

File:

PDF, 324 KB

english, 1976

4

Long range ordering of a linear-chain Heisenberg antiferromagnet, tanol, below 1 K

Masafumi Kumano, Yusaku Ikegami, Takashi Sato, Shinhachiro Saito

Journal:

Chemical Physics Letters

Year:

1977

Language:

english

File:

PDF, 255 KB

english, 1977

5

Anisotropic EPR line-width in a linear chain-like organic free radical, TANOL

Masafumi Kumano, Yusaku Ikegami

Journal:

Chemical Physics Letters

Year:

1978

Language:

english

File:

PDF, 142 KB

english, 1978

6

Time-resolved EPR observation of the short-lived excited triplet states of diamagnetic metallophthalocyanines in a rigid glassy matrix

Kimio Akiyama, Shozo Tero-Kubota, Yusaku Ikegami

Journal:

Chemical Physics Letters

Year:

1991

Language:

english

File:

PDF, 273 KB

english, 1991

7

CIDEP study on the photosensitized reactions of p-benzoquinone and hydroquinone by eosin Y

Akio Katsuki, Shozo Tero-Kubota, Yusaku Ikegami

Journal:

Chemical Physics Letters

Year:

1993

Language:

english

File:

PDF, 352 KB

english, 1993

8

Coherent and incoherent hopping of triplet exciton in quinoxaline-annelated and naphthalene-annelated dimers

Shozo Tero-Kubota, Tatsuya Miyamoto, Kimio Akiyama, Yusaku Ikegami, Shuntaro Mataka, Masashi Tashiro

Journal:

Chemical Physics Letters

Year:

1996

Language:

english

File:

PDF, 322 KB

english, 1996

9

Liquid helium cryostat for esr measurements free from bubbling noise

Tsuneki Ichikawa, Hiroshi Yoshida, Hiroshi Yamada, Shoichi Tokairin, Yusaku Ikegami

Journal:

Journal of Magnetic Resonance (1969)

Year:

1969

Language:

english

File:

PDF, 159 KB

english, 1969

10

Preparations and spin-spin interactions of 4,4′-(mphenylene)bis(1-methyl-2,6-diphenylpyridinyl) and its analogue

Keiji Okada, Kouzou Matsumoto, Masaji Oda, Hisao Murai, Kimio Akiyama, Yusaku Ikegami

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 388 KB

english, 1995

11

Preparation and spin-spin interaction of 4,4′(anthracene-1,8-diyl)bis(1-methyl-2,6-diphenylpyridinyl)

Keiji Okada, Kouzou Matsumoto, Masaji Oda, Hisao Murai, Kimio Akiyama, Yusaku Ikegami

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 252 KB

english, 1995

12

A time-resolved electron paramagnetic resonance study on the photoinduced electron transfer reactions from metalloporphyrins to quinones

Seigo Yamauchi, Toru Ueda, Minoru Satoh, Kimio Akiyama, Shozo Tero-Kubota, Yusaku Ikegami, Masamoto Iwaizumi

Journal:

Journal of Photochemistry and Photobiology A: Chemistry

Year:

1992

Language:

english

File:

PDF, 393 KB

english, 1992

13

The length of a CC single bond joining two 1,2-dihydropyridine rings in 6,7,12a,12b-tetrahydrodipyrido[1,2-a:2′,1′-c]pyrazine and its congeners

Azumao Toyota, Takashi Muramatsu, Yusaku Ikegami

Journal:

Journal of Molecular Structure

Year:

1994

Language:

english

File:

PDF, 441 KB

english, 1994

14

Photochemistry of 5,5′-bi-2-isoxazoline and its related compounds. Evidence for radical generation in the photochemistry of 2-isoxazoles.

Hiroshi Saiki, Tsutomu Miyashi, Toshio Mukai, Yusaku Ikegami

Journal:

Tetrahedron Letters

Year:

1977

Language:

english

File:

PDF, 219 KB

english, 1977

15

1,1′-(p- or m-phenylene)bis(2,4,6-triphenylpyridinyl) diradicals: ground state in a heteroatom-containing system in relation to the topology rule

Keiji Okada, Kouzou Matsumoto, Masaji Oda, Kimio Akiyama, Yusaku Ikegami

Journal:

Tetrahedron Letters

Year:

1997

Language:

english

File:

PDF, 236 KB

english, 1997

16

Spin flopping transition in a linear chain-like organic free radical, tanol, below 0.5 K

Masafumi Kumano, Yusaku Ikegami

Journal:

Chemical Physics Letters

Year:

1980

Language:

english

File:

PDF, 217 KB

english, 1980

17

Time-resolved EPR spectra of the excited triplet states generated from the photoinduced intramolecular proton transfer and from the direct excitation reactions in 2-(N-phenylacetimidoyl)-1-naphthol

Shozo Tero-Kubota, Tetsuji Noguchi, Akio Katsuki, Kimio Akimaya, Yusaku Ikegami

Journal:

Chemical Physics Letters

Year:

1991

Language:

english

File:

PDF, 282 KB

english, 1991

18

The length of a CC single bond joining two 1,2-dihydropyridine rings in 6,7,12a,12b-tetrahydrodipyrido[1,2-a:2′,1′-c]pyrazine and its congeners

Azumao Toyota, Takashi Muramatsu, Yusaku Ikegami

Journal:

Journal of Molecular Structure: THEOCHEM

Year:

1994

Language:

english

File:

PDF, 500 KB

english, 1994

19

EPR AND TREPR SPECTROSCOPIC STUDIES OF ANTIOXIDANT SESAMOLYL AND RELATED PHENOXYL RADICALS

Kouichi Nakagawa, Shozo Tero-Kubota, Yusaku Ikegami, Nobuaki Tsuchihashi

Journal:

Photochemistry and Photobiology

Year:

1994

Language:

english

File:

PDF, 540 KB

english, 1994

20

Characteristics of Chemiluminescence Observed in the Horseradish Peroxidase–Hydrogen Peroxide–Tyrosine System

Hiroko Totsune, Chiaki Ohno, Yasuhiro Kambayashi, Minoru Nakano, Yoshio Ushijima, Shozo Tero-Kubota, Yusaku Ikegami

Journal:

Archives of Biochemistry and Biophysics

Year:

1999

Language:

english

File:

PDF, 167 KB

english, 1999

21

Mechanism of O−2 generation in reduction and oxidation cycle of ubiquinones in a model of mitochondrial electron transport systems

Katsuaki Sugioka, Minoru Nakano, Hiroko Totsune-Nakano, Hisanori Minakami, Shozo Tero-Kubota, Yusaku Ikegami

Journal:

Biochimica et Biophysica Acta (BBA) - Bioenergetics

Year:

1988

Language:

english

File:

PDF, 690 KB

english, 1988

22

Generation of hydroxyl radicals during the enzymatic reductions of the Fe3+-ADP-Phosphate-adriamycin and Fe3+-ADP-EDTA systems: Less involvement of hydroxyl radical and a great importance of proposed perferryl ion complexes in lipid peroxidation

Katsuaki Sugioka, Hiroko Nakano, Minoru Nakano, Shozo Tero-Kubota, Yusaku Ikegami

Journal:

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism

Year:

1983

Language:

english

File:

PDF, 1.15 MB

english, 1983

23

Importance of Fe2+-ADP and the relative unimportance of OH in the mechanism of mitomycin C-induced lipid peroxidation

Nakano Hiroko, Sugioka Katsuaki, Nakano Minoru, Mizukami Masami, Kimura Hirokazu, Tero-Kubota Shozo, Ikegami Yusaku

Journal:

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism

Year:

1984

Language:

english

File:

PDF, 964 KB

english, 1984

24

Generation of free radicals and initiation of radical reactions in nitrones — Fe2+ - phosphate buffer systems

Shozo Tero-Kubota, Yusaku Ikegami, Tadashi Kurokawa, Rikuro Sasaki, Katsuaki Sugioka, Minoru Nakano

Journal:

Biochemical and Biophysical Research Communications

Year:

1982

Language:

english

File:

PDF, 359 KB

english, 1982

25

RNA polymerase II bypasses 8-oxoguanine in the presence of transcription elongation factor TFIIS

Isao Kuraoka, Kyoko Suzuki, Shinsuke Ito, Mika Hayashida, Joan Seah Mei Kwei, Takahisa Ikegami, Hiroshi Handa, Yusaku Nakabeppu, Kiyoji Tanaka

Journal:

Year:

2007

Language:

english

File:

PDF, 1.08 MB

english, 2007

26

Photosensitive cyclomer formation of 1,1'-(1,2-ethanediyl)bis(pyridinyl) diradical and its derivatives

Ikegami, Yusaku, Muramatsu, Takashi, Hanaya, Kaoru

Journal:

Journal of the American Chemical Society

Year:

1989

Language:

english

File:

PDF, 674 KB

english, 1989

27

Phase transition of the NH4Br—NH4I mixed crystals and librational motion of the ammonium ion

Shinji Onodera, Yusaku Ikegami

Journal:

Spectrochimica Acta Part A: Molecular Spectroscopy

Year:

1977

Language:

english

File:

PDF, 297 KB

english, 1977

28

Synthesis and characterization of new conjugation-extended viologens involving a central aromatic linking group

Takahashi, Kazuko, Nihira, Takayasu, Akiyama, Kimio, Ikegami, Yusaku, Fukuyo, Emiko

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1992

Language:

english

File:

PDF, 342 KB

english, 1992

29

Synthesis and characterization of novel p-terphenoquinone analogs involving a central dihydrothiophenediylidene structure

Takahashi, Kazuko, Suzuki, Tsuyoshi, Akiyama, Kimio, Ikegami, Yusaku, Fukazawa, Yoshimasa

Journal:

Journal of the American Chemical Society

Year:

1991

Language:

english

File:

PDF, 1.09 MB

english, 1991

30

Structural and Chemical Properties of 3,10-Diaza- N,N -dimethyldispiro[5.0.5.3]- pentadeca-1,4,8,11-tetraene: A Novel Heterocyclic Dispiro Compound

Muramatsu, Takashi, Toyota, Azumao, Kudou, Mikako, Ikegami, Yusaku, Watanabe, Masataka

Journal:

Journal of Organic Chemistry

Year:

1999

Language:

english

File:

PDF, 90 KB

english, 1999

31

1-Alkyl-2-(carbomethoxy)pyridinyl radicals: monomers and dimers defined through chemical and photochemical properties and electron paramagnetic resonance

Hermolin, Joshua, Levin, Menachem, Ikegami, Yusaku, Sawayanagi, Masako, Kosower, Edward M.

Journal:

Journal of the American Chemical Society

Year:

1981

Language:

english

File:

PDF, 766 KB

english, 1981

32

Properties of a coenzyme, pyrroloquinoline quinone: generation of an active oxygen species during a reduction-oxidation cycle in the presence of NAD(P)H and O2

Sugioka, Katsuaki, Nakano, Minoru, Naito, Isao, Tero-Kubota, Shozo, Ikegami, Yusaku

Journal:

Biochimica et Biophysica Acta (BBA) - General Subjects

Year:

1988

Language:

english

File:

PDF, 557 KB

english, 1988

33

A Pyridinyl Diradical. Preparation and Association

Kosower, Edward M., Ikegami, Yusaku.

Journal:

Journal of the American Chemical Society

Year:

1967

Language:

english

File:

PDF, 235 KB

english, 1967

34

Dimerization mechanism of the 1-alkyl-4-phenylpyridinyl radicals generated from the photosensitive dimer as studied by kinetic ESR spectroscopy

Akiyama, Kimio, Tero-Kubota, Shozo, Ikegami, Yusaku

Journal:

Journal of the American Chemical Society

Year:

1983

Language:

english

File:

PDF, 458 KB

english, 1983

35

Far-infrared spectra of ammonium, potassium, rubidium, and cesium metavanadates

Onodera, Shinji, Ikegami, Yusaku

Journal:

Inorganic Chemistry

Year:

1979

Language:

english

File:

PDF, 360 KB

english, 1979

36

Monomer-dimer equilibrium of the 1-methyl-2-methoxycarbonylpyridinyl radical in 2-methyltetrahydrofuran solution. Kinetic and thermodynamic studies by electron spin resonance spectroscopy

Tero-Kubota, Shozo, Sano, Yutaka, Ikegami, Yusaku

Journal:

Journal of the American Chemical Society

Year:

1982

Language:

english

File:

PDF, 424 KB

english, 1982

37

Polarized ESR spectra of the triplet enols generated from o-methylacetophenone and related compounds

Akiyama, Kimio, Ikegami, Yusaku, Tero-Kubota, Shozo

Journal:

Journal of the American Chemical Society

Year:

1987

Language:

english

File:

PDF, 270 KB

english, 1987

38

The 1,1'-ethylenebis[4-(methoxycarbonyl)pyridinyl] diradical and its photosensitive cyclomers

Ikegami, Yusaku, Muramatsu, Takashi, Hanaya, Kaoru, Onodera, Shinji, Nakayama, Norio, Kosower, Edward M.

Journal:

Journal of the American Chemical Society

Year:

1987

Language:

english

File:

PDF, 599 KB

english, 1987

39

Structural and Chemical Properties of 1,2-Bis(N-methyl-4-pyridyl)ethylene

Muramatsu, Takashi, Toyota, Azumao, Ikegami, Yusaku

Journal:

Journal of Organic Chemistry

Year:

1995

Language:

english

File:

PDF, 333 KB

english, 1995

40

Spin-Orbit Coupling-Induced Electron Spin Polarization Observed in Photosensitized Electron Transfer Reactions between Xanthene Dyes and p-Quinones

Katsuki, Akio, Akiyama, Kimio, Ikegami, Yusaku, Tero-Kubota, Shozo

Journal:

Journal of the American Chemical Society

Year:

1994

Language:

english

File:

PDF, 293 KB

english, 1994

41

Singlet-triplet transformation in the dimeric association of pyridinyl radicals

Ikegami, Yusaku, Seto, Shuichi

Journal:

Journal of the American Chemical Society

Year:

1974

Language:

english

File:

PDF, 247 KB

english, 1974

42

Spin polarization conservation during triplet-triplet energy transfer in fluid solution as studied by time-resolved ESR spectroscopy

Akiyama, Kimio, Kaneko, Atsuko, Tero-Kubota, Shozo, Ikegami, Yusaku

Journal:

Journal of the American Chemical Society

Year:

1990

Language:

english

File:

PDF, 574 KB

english, 1990

43

Molecular and Electronic Structures of the Short-Lived Excited Triplet State of Tropone

Ikoma, Tadaaki, Akiyama, Kimio, Tero-Kubota, Shozo, Ikegami, Yusaku

Journal:

Journal of Physical Chemistry A

Year:

1998

Language:

english

File:

PDF, 234 KB

english, 1998

44

Inversion of the ground-state spin multiplicity by electron-withdrawing groups in trimethylenemethane derivatives generated photochemically from methylenequadricyclane derivatives

Hirano, Takashi, Kumagai, Tsutomu, Miyashi, Tsutomu, Akiyama, Kimio, Ikegami, Yusaku

Journal:

Journal of Organic Chemistry

Year:

1992

Language:

english

File:

PDF, 1.27 MB

english, 1992

45

Infrared and Raman spectra of ammonium, potassium, rubidium, and cesium metavanadates

Onodera, Shinji, Ikegami, Yusaku

Journal:

Inorganic Chemistry

Year:

1980

Language:

english

File:

PDF, 428 KB

english, 1980

46

Novel photoreactions of benzhydrylidenequadricyclane and quadricyclanone: a new route to trimethylenemethane and oxyallyl derivatives

Hirano, Takashi, Kumagai, Tsutomu, Miyashi, Tsutomu, Akiyama, Kimio, Ikegami, Yusaku

Journal:

Journal of Organic Chemistry

Year:

1991

Language:

english

File:

PDF, 1.10 MB

english, 1991

47

Associated triplet states of pyridinyl radicals

Ikegami, Yusaku, Watanabe, Hidetoshi, Seto, Shuichi

Journal:

Journal of the American Chemical Society

Year:

1972

Language:

english

File:

PDF, 150 KB

english, 1972

48

Spin polarization conservation during the excitation energy transfer in fluid solution

Akiyama, Kimio, Tero-Kubota, Shozo, Ikegami, Yusaku, Ikenoue, Tsuneo

Journal:

Journal of the American Chemical Society

Year:

1984

Language:

english

File:

PDF, 303 KB

english, 1984

49

Spin Polarization Conservation during Intramolecular Triplet-Triplet Energy Transfer Studied by Time-Resolved EPR Spectroscopy

Akiyama, Kimio, Tero-Kubota, Shozo, Ikoma, Tadaaki, Ikegami, Yusaku

Journal:

Journal of the American Chemical Society

Year:

1994

Language:

english

File:

PDF, 377 KB

english, 1994

50

Electronic structure of the excited triplet state of nonphosphorescent tropolone studied by time-resolved EPR

Ikoma, Tadaaki, Akiyama, Kimio, Tero-Kubota, Shozo, Ikegami, Yusaku

Journal:

Journal of the Chemical Society Faraday Transactions

Year:

1998

Language:

english

File:

PDF, 167 KB

english, 1998