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1

Novel Anomaly of the Hyperfine Structure in Triplet ESR Spectra and Absolute Sign Determination of the Zero-Field and Hyperfine Splitting Constants

Iwasaki, Machio

Journal:

The Journal of Chemical Physics

Year:

1971

Language:

english

File:

PDF, 374 KB

english, 1971

2

Hyperfine anomaly arising from the nuclear spin-forbidden transition, and absolute sign determination of the zero-field splitting constant

Minakata, Kayoko, Iwasaki, Machio

Journal:

Molecular Physics

Year:

1972

Language:

english

File:

PDF, 922 KB

english, 1972

3

ESR of Fluorine-Containing Polymers

Iwasaki, Machio

Journal:

Year:

1969

File:

PDF, 1.79 MB

1969

4

ESR of Fluorin-Containing Polymers

IWASAKI, Machio

Journal:

Year:

1969

File:

PDF, 2.03 MB

1969

5

ChemInform Abstract: ENDOR STUDIES OF THE SUPERHYPERFINE COUPLINGS OF HYDROGEN-BONDED PROTONS PART 4, CARBOXYL RADICAL ANIONS IN IRRADIATED GLYCINE AND ALPHA-AMINO ISOBUTYRIC ACID

IWASAKI, MACHIO, MUTO, HACHIZO

Journal:

Chemischer Informationsdienst

Year:

1975

File:

PDF, 96 KB

1975

6

Electron spin resonance studies on graft copolymerization of gaseous styrene onto preirradiated polypropylene. II. Preirradiation under vacuum

Keichi Nunome, Bunzo Eda, Machio Iwasaki

Journal:

Journal of Applied Polymer Science

Year:

1974

Language:

english

File:

PDF, 362 KB

english, 1974

7

Electron spin resonance studies on graft copolymerization of gaseous styrene onto preirradiated polypropylene. III. Preirradiation under vacuum followed by exposure to oxygen at −78°C

Keichi Nunome, Bunzo Eda, Machio Iwasaki

Journal:

Journal of Applied Polymer Science

Year:

1974

Language:

english

File:

PDF, 281 KB

english, 1974

8

ESR studies of local concentrations of radicals in polyethylene irradiated at 1.5, 4.2 and 77 K

Keichi Nunome, Hachizo Muto, Kazumi Toriyama, Machio Iwasaki

Journal:

Chemical Physics Letters

Year:

1976

Language:

english

File:

PDF, 450 KB

english, 1976

9

Initial mode of radical pair formation in n-hydrocarbons irradiated at 1.5 and 4.2 K

Machio Iwasaki, Kazumi Toriyama, Hachizo Muto, Keichi Nunome

Journal:

Chemical Physics Letters

Year:

1976

Language:

english

File:

PDF, 468 KB

english, 1976

10

Selective formation of radicals in irradiated single crystals: 5,5′-dihydroxybarbituric acid trihydrate

Machio Iwasaki, Kazumi Toriyama

Journal:

Chemical Physics Letters

Year:

1976

Language:

english

File:

PDF, 564 KB

english, 1976

11

Hydrogen abstraction by thermal hydrogen atoms at 10–30 K: Electron spin resonance evidence

Machio Iwasaki, Kazumi Toriyama, Hachizo Muto, Keichi Nunome

Journal:

Chemical Physics Letters

Year:

1978

Language:

english

File:

PDF, 258 KB

english, 1978

12

Photoinduced and thermal reactions of molecular σ radical cations of some branched alkanes in low-temperature matrices: An ESR study

Keichi Nunome, Kazumi Toriyama, Machio Iwasaki

Journal:

Chemical Physics Letters

Year:

1984

Language:

english

File:

PDF, 444 KB

english, 1984

13

ESR evidence for twisted structure of methyl-substituted ethylene radical cations: Trimethylethylene and propylene

Kazumi Toriyama, Keichi Nunome, Machio Iwasaki

Journal:

Chemical Physics Letters

Year:

1984

Language:

english

File:

PDF, 373 KB

english, 1984

14

ESR observation of isotopic preference in static distortions of Jahn-Teller active radical cations: Partially deuterated ethane radical cations in SF6 at 4 K

Machio Iwasaki, Kazumi Toriyama, Keichi Nunome

Journal:

Chemical Physics Letters

Year:

1984

Language:

english

File:

PDF, 559 KB

english, 1984

15

A 4 K matrix ESR study of the rearrangement and fragmentation of molecular radical cations of alkyl formates and acetates: Direct evidence for a McLafferty rearrangement

Hachizo Muto, Kazumi Toriyama, Keichi Nunome, Machio Iwasaki

Journal:

Chemical Physics Letters

Year:

1984

Language:

english

File:

PDF, 376 KB

english, 1984

16

A 4 k matrix esr study of the radical cations of methyl formate: The primary radical cation and its rearrangement

Machio Iwasaki, Hachizo Muto, Kazumi Toriyama, Keichi Nunome

Journal:

Chemical Physics Letters

Year:

1984

Language:

english

File:

PDF, 372 KB

english, 1984

17

Photoinduced ring-opening rearrangement of a radical cation of cyclobutane in CFCl3 at low temperature: ESR observation

Kazumi Toriyama, Keichi Nunome, Machio Iwasaki, Tadamasa Shida, Kiminori Ushida

Journal:

Chemical Physics Letters

Year:

1985

Language:

english

File:

PDF, 217 KB

english, 1985

18

Electron spin resonance and structure of the radical cation of 3-methylpentane

Kazumi Toriyama, Keichi Nunome, Machio Iwasaki

Journal:

Chemical Physics Letters

Year:

1986

Language:

english

File:

PDF, 291 KB

english, 1986

19

Second-order perturbation treatment of the general spin hamiltonian in an arbitrary coordinate system

Journal:

Journal of Magnetic Resonance (1969)

Year:

1969

Language:

english

File:

PDF, 395 KB

english, 1969

20

ENDOR studies of γ-Proton hyperfine coupling tensors and their conformational dependence in l-alanine-d3

Hachizo Muto, Machio Iwasaki, Kazuyuki Ohkuma

Journal:

Journal of Magnetic Resonance (1969)

Year:

1969

Language:

english

File:

PDF, 375 KB

english, 1969

21

Radiolysis of alkanes and olefines in xenon matrices at 4.2 K as studied by ESR: Formation and trapping of hydrogen atoms and their subsequent reactions at cryogenic temperatures

Hachizo Muto, Kazumi Toriyama, Keichi Nunome, Machio Iwasaki

Journal:

Radiation Physics and Chemistry (1977)

Year:

1977

Language:

english

File:

PDF, 606 KB

english, 1977

22

Formation of allylic and hydrogen addition radicals in tiglic acid (αβ-dimethylacrylic acid) irradiated at 77 K as studied by ESR

Mitsuharu Fukaya, Bunzo Eda, Machio Iwasaki

Journal:

Radiation Physics and Chemistry (1977)

Year:

1977

Language:

english

File:

PDF, 427 KB

english, 1977

23

A preliminary report on radical yield alternation in even and odd linear alkanes irradiated at 77 K: ESR evidence

Mitsuhara Fukaya, Kazumi Toriyama, Machio Iwasaki, Takahisa Ichikawa, Nobuaki Ohta

Journal:

Radiation Physics and Chemistry (1977)

Year:

1977

Language:

english

File:

PDF, 231 KB

english, 1977

24

The fate of primary cations in radiolysis of alkanes as studied by ESR

Machio Iwasaki, Kazumi Toriyama, Keichi Nunome

Journal:

Radiation Physics and Chemistry (1977)

Year:

1977

Language:

english

File:

PDF, 895 KB

english, 1977

25

Direct ESR evidence for radiolytic production of D atoms, their trapping and reaction in neopentane-d12 irradiated at 4.2 and 77 K1

Hachizo Muto, Keichi Nunome, Kazumi Toriyama, Machio Iwasaki

Journal:

Radiation Physics and Chemistry (1977)

Year:

1977

Language:

english

File:

PDF, 380 KB

english, 1977

26

The structural changes produced by the heat treatment of polytrifluorochloroethylene

Machio Iwasaki, Michiro Aoki, Rimpei Kojima

Journal:

Journal of Polymer Science Part B: Polymer Physics

Year:

1957

Language:

english

File:

PDF, 202 KB

english, 1957

27

The infrared spectra of tetrafluoroethylene-trifluorochloroethylene copolymers

Machio Iwasaki, Michiro Aoki, Kunio Okuhara

Journal:

Journal of Polymer Science Part B: Polymer Physics

Year:

1957

Language:

english

File:

PDF, 245 KB

english, 1957

28

Electron spin resonance of trapped free radicals and the photoinduced radical conversion in γ-irradiated isotactic polypropylene

Machio Iwasaki, Takahisa Ichikawa, Kazumi Toriyama

Journal:

Journal of Polymer Science Part C: Polymer Letters

Year:

1967

Language:

english

File:

PDF, 224 KB

english, 1967

29

Behavior of peroxy radicals trapped in γ-irradiated polypropylene as studied by electron spin resonance

Bunzo Eda, Keichi Nunome, Machio Iwasaki

Journal:

Journal of Polymer Science Part C: Polymer Letters

Year:

1969

Language:

english

File:

PDF, 303 KB

english, 1969

30

Change with temperature of the ESR spectra of methacrylic acid radicals

Yoshiro Sakai, Machio Iwasaki

Journal:

Journal of Polymer Science Part A: Polymer Chemistry

Year:

1969

Language:

english

File:

PDF, 790 KB

english, 1969

31

Radiation-induced solid-state polymerization of methacrylic acid. I. Crystalline transition of the monomer

Yoshiro Sakai, Machio Iwasaki

Journal:

Journal of Polymer Science Part A: Polymer Chemistry

Year:

1969

Language:

english

File:

PDF, 403 KB

english, 1969

32

Electron spin resonance studies on graft copolymerization of gaseous styrene onto preirradiated polypropylene. I. Preirradiation in the presence of oxygen

Bunzo Eda, Keichi Nunome, Machio Iwasaki

Journal:

Journal of Polymer Science Part A: Polymer Chemistry

Year:

1970

Language:

english

File:

PDF, 606 KB

english, 1970

33

An ESR study of radiation damage of bisphenol-A-based epoxy resin at low temperature: Selective hydrogen addition to benzene-ring-forming cyclohexadienyl-type radical

Bunzo Eda, Machio Iwasaki

Journal:

Journal of Polymer Science Part A: Polymer Chemistry

Year:

1986

Language:

english

File:

PDF, 468 KB

english, 1986

34

Structures and reactions of radical cations of some bicycloalkanes and their related alkenes as studied by 4 k matrix esr

Keichi Nunome, Kazumi Toriyama, Machio Iwasaki

Journal:

Year:

1986

Language:

english

File:

PDF, 842 KB

english, 1986

35

Even?odd alternation of the fromation of chain end alkyl radicals in irradiated crystalline alkanes; e.s.r. evidence

Toriyama, Kazumi, Iwasaki, Machio, Fukaya, Mitsuharu

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1982

Language:

english

File:

PDF, 661 KB

english, 1982

36

The 4 K radiolysis of linear alkanes as studied by electron spin resonance spectroscopy: selective formation of terminal alkyl radicals in the primary process

Iwasaki, Machio, Toriyama, Kazumi, Fukaya, Mitsuharu, Muto, Hachizo, Nunome, Keichi

Journal:

Journal of Physical Chemistry

Year:

1985

Language:

english

File:

PDF, 959 KB

english, 1985

37

Structures and reactions of radical cations of linear alkanes: ESR evidence for selective deprotonation

Toriyama, Kazumi, Nunome, Keichi, Iwasaki, Machio

Journal:

Journal of Physical Chemistry

Year:

1986

Language:

english

File:

PDF, 852 KB

english, 1986

38

ESR spectra and structures of radical cations of some branched alkanes: β-proton couplings in C–C σ cations

Nunome, Keichi, Toriyama, Kazumi, Iwasaki, Machio

Journal:

The Journal of Chemical Physics

Year:

1983

Language:

english

File:

PDF, 662 KB

english, 1983

39

Static distortion of 2E molecular cations of cyclobutane at 4.2 K giving 2B2 with C2v symmetry and its dynamic average at >77 K: ESR evidence

Ushida, Kiminori, Shida, Tadamasa, Iwasaki, Machio, Toriyama, Kazumi, Nunome, Keichi

Journal:

Journal of the American Chemical Society

Year:

1983

Language:

english

File:

PDF, 259 KB

english, 1983

40

Electron spin resonance study on the acrylic acid anion radical and its protonation in some irradiated frozen solutions

Iwasaki, Machio, Fukaya, Mitsuharu, Fujii, Shigetada, Muto, Hachizo

Journal:

Journal of Physical Chemistry

Year:

1973

Language:

english

File:

PDF, 778 KB

english, 1973

41

Static distortion of 2 E g cyclohexne cation redicals giving the 2 A g state with C2h symmetry and their dynamic processes in low-temperature solids: matrix effects

Toriyama, Kazumi, Nunome, Keichi, Iwasaki, Machio

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1984

Language:

english

File:

PDF, 281 KB

english, 1984

42

Structures of radical cations of norbornane and norbornadiene: e.s.r. evidence

Toriyama, Kazumi, Nunome, Keichi, Iwasaki, Machio

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1983

Language:

english

File:

PDF, 190 KB

english, 1983

43

Reorientation of the methyl groups and its high activation energy in .sigma. radical cations of alkanes: ESR observation for n-butane

Iwasaki, Machio., Toriyama, Kazumi.

Journal:

Journal of the American Chemical Society

Year:

1986

Language:

english

File:

PDF, 411 KB

english, 1986

44

Electron spin resonance study of radical fragmentation from positive primaries in irradiated single crystals of unsaturated carboxylic acids

Toriyama, Kazumi, Iwasaki, Machio, Noda, Shoji, Eda, Bunzo

Journal:

Journal of the American Chemical Society

Year:

1971

Language:

english

File:

PDF, 810 KB

english, 1971

45

New type of radical in irradiated single crystals of carboxylic acids

Iwasaki, Machio., Eda, Bunzo., Toriyama, Kazumi.

Journal:

Journal of the American Chemical Society

Year:

1970

Language:

english

File:

PDF, 263 KB

english, 1970

46

Electron spin resonance evidence for tunneling hydrogen atom transfer reaction at 4.2 K in organic crystals

Toriyama, Kazumi, Nunome, Keichi, Iwasaki, Machio

Journal:

Journal of the American Chemical Society

Year:

1977

Language:

english

File:

PDF, 261 KB

english, 1977

47

Linear alkane radical cations prepared in synthetic zeolites by irradiation at 4 K: ESR evidence for ion molecule reaction to form 1-alkyl radicals

Toriyama, Kazumi, Nunome, Keichi, Iwasaki, Machio

Journal:

Journal of the American Chemical Society

Year:

1987

Language:

english

File:

PDF, 588 KB

english, 1987

48

Electron spin resonance of methoxy radicals trapped in methanol x-irradiated at 4.2 K

Iwasaki, Machio, Toriyama, Kazumi

Journal:

Journal of the American Chemical Society

Year:

1978

Language:

english

File:

PDF, 290 KB

english, 1978

49

Electron spin resonance study of electronic and geometrical structures of C2H6+ and other simple alkane cations at 4.2 K: possible evidence for Jahn-Teller distortion

Iwasaki, Machio, Toriyama, Kazumi, Nunome, Keichi

Journal:

Journal of the American Chemical Society

Year:

1981

Language:

english

File:

PDF, 279 KB

english, 1981

50

Electron spin resonance studies of copper(2+) ion doped in single crystals of cytosine monohydrate

Toriyama, Kazumi, Iwasaki, Machio

Journal:

Journal of the American Chemical Society

Year:

1975

Language:

english

File:

PDF, 491 KB

english, 1975

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