Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Kiyokazu Nozawa"'
Autor:
Kiyokazu Nozawa, Takayuki Ozaki, Minoru Kinoshita, Hiroki Akutsu, Katsunari Ozeki, Tokiko Uchida, Kozo Kozawa
Publikováno v:
Bulletin of the Chemical Society of Japan. 69:1869-1873
A novel molecular complex of tetramethyltetrathiafulvalene (TMTTF) was prepared by the treatment with TiF4. The X-ray analysis reveals the exsistence of a trimer of TMTTF’s and a Ti2F102− anion in a triclinic unit cell of the dimension; a = 10.93
Autor:
Ichimin Shirotani, Minoru Kinoshita, Takafumi Adachi, Takehiko Yagi, Kenji Tachi, Sakae Todo, Kiyokazu Nozawa
Publikováno v:
Journal of Physics and Chemistry of Solids. 57:211-216
Metal phosphides with skutterudite (CoAs 3 )-type structure have been prepared using a wedgetype cubic-anvil high pressure apparatus. NiP 3 , LaRu 4 − x Os x P 12 ( x : 0, 1, 2, 3, 4) and CeRu 4 P 12 were synthesized at around 1100 °C and 4 GPa. T
Autor:
Yuko Hosokoshi, Reizo Kato, Minoru Kinoshita, Masafumi Tamura, Satoshi Suzuki, Hiroshi Sawa, Kiyokazu Nozawa
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 271:115-122
Magnetic properties and crystal structures of α-and β-2-hydro nitronyl nitroxide radicals (2-hydro-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl 3-oxide) were investigated. Exchange couplings in both phases were estimated from the parainagneti
Autor:
Naoko Iwasawa, Minoru Kinoshita, Hiroshi Sawa, Kiyokazu Nozawa, Yuko Hosokoshi, Masafumi Tamura, Daisuke Shiomi, Reizo Kato
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 232:45-52
Magnetic properties and crystal structures of several derivatives of phenyl nitronyl nitroxide (abbreviated as PNN; 2-phenyl-4,4,5,5-tetramethyl-4,5-dihydro-lH-imidazol-l-oxyl-3-N-oxide) are investigated. Some of them have the intermolecular interact
Autor:
Masafumi Tamura, Minoru Kinoshita, Kiyokazu Nozawa, Reizo Kato, Yuko Hosokoshi, Hiroshi Sawa, Daisuke Shiomi, N. Iwasawa
Publikováno v:
Synthetic Metals. 56:3323-3326
Single crystals of four organic radicals, p -trifluoromethylphenyl ( 1 ), pentafluorophenyl ( 2 ), 2-thienyl ( 3 ), and biphenyl ( 4 ) derivatives of nitronyl nitroxide, were prepared. The paramagnetic susceptibilities, χ p , of the crystals of 1 ,
Autor:
Yasuhiro Nakazawa, Minoru Kinoshita, Minuro Takahashi, Yuko Hosokoshi, Kiyokazu Nozawa, Masayasu Ishikawa, Daisuke Shiomi, Masafumi Tamura
Publikováno v:
Chemical Physics Letters. 186:401-404
Transition to a ferromagnetic long-range ordered state was found at 0.60 K in the orthorhombic β-phase crystal of p-nitrophenyl nitronyl nitroxide (or 2-(4′-nitrophenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-oxyl-3-N-oxide in the IUPAC nom
Autor:
Yasuhiro Nakazawa, Daisuke Shiomi, Minoru Kinoshita, Minoru Takahashi, Kunio Awaga, Masayasu Ishikawa, Philippe Turek, Tamotsu Inabe, Yusei Maruyama, Kiyokazu Nozawa, Masafumi Tamura
Publikováno v:
Chemistry Letters. 20:1225-1228
The γ-phase crystal of 2-(4′-nitrophenyl)-4,4,5,5-tetramethyl-4 5-dihydro-1H−imidazol-1-oxy-3-N-oxide is shown to become a bulk ferromagnet below about 0.65 K from the measurements of magnetization of magnetic susceptibility and heat capacity.
Autor:
Philippe Turek, Kiyokazu Nozawa, Tamotsu Inabe, Yusei Maruyama, Minoru Kinoshita, Daisuke Shiomi, Kunio Awaga
Publikováno v:
Chemical Physics Letters. 180:327-331
The crystal structure of a new phase of the p -nitrophenyl nitronyl nitroxide radical compound is described. A study of its magnetic properties reveals the largest intermolecular ferromagnetic coupling reported so far among a series of polymorphs of
Autor:
Shoichi Sato, Minoru Kinoshita, Fred Wudl, Tadashi Sugano, Kiyokazu Nozawa, G. Saito, Hideki Yamochi, Toshikazu Nakamura, T. Kikuchi
Publikováno v:
Synthetic Metals. 42:1741-1744
The electrocrystallization of BEDO-TTF using the supporting electrolytes containing CuCl2, HgCl2, HgBr2, HgI2, Hg(SCN)2, ReO4, SbF6, and HCTNN anions gave conducting ion radical salts. Except the ‘CuBr2’ salt, these newly prepared materials exhib
Autor:
N. Iwasawa, Daisuke Shiomi, Masafumi Tamura, T. Goto, H. Aruga Katori, Minoru Kinoshita, Yuko Hosokoshi, Kiyokazu Nozawa
Publikováno v:
Physica B: Condensed Matter. 201:497-499
Studies of intermolecular antiferromagnetic interactions in the crystals of several derivatives of α -nitronyl nitroxide radical by magnetization (up to 400 kOe) and susceptibility (1.8–300 K) measurements are presented. The estimated exchange cou