Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Fujiko Iwasaki"'
Autor:
Hiroshi Ikeda, Daisuke Hashizume, Haruki Niwa, Fujiko Iwasaki, Takashi Hirano, Yoshiharu Takamuki, Shunsuke Fujio, Masanori Yasui, Shojiro Maki
Publikováno v:
Tetrahedron Letters. 45:8531-8534
Phenyl-substitution to the C8 position of an imidazopyrazinone ring resulted in the significant bathochromic shift of the lowest energy band, while the substitution to the C6 position does not produce such a shift. This provides evidence that a color
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce7a87cf4cefd75942645774f6e88547
https://doi.org/10.1016/j.tetlet.2004.09.106
https://doi.org/10.1016/j.tetlet.2004.09.106
Autor:
Haruki Niwa, Shojiro Maki, Shunichiro Nakai, Fujiko Iwasaki, Mamoru Ohashi, Masanori Yasui, Takashi Hirano, Masaki Nakazato
Publikováno v:
Bulletin of the Chemical Society of Japan. 76:2361-2387
The fundamental physical properties of 2-methyl and 2-phenylimidazo[1,2-a]pyrazin-3(7H)-one 1 and 2, and their N- and O-alkylated derivatives 3–6 have been investigated by X-ray crystallography, UV/vis absorption spectroscopy, NMR, and AM1-COSMO ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3a45b42f2cc0b9d9445c35e30320958
https://doi.org/10.1246/bcsj.76.2361
https://doi.org/10.1246/bcsj.76.2361
Publikováno v:
Inorganic Chemistry. 42:6106-6113
We have exploited potential utility of 4,4,5,5-tetramethylimidazolin-1-oxyl (hin) and 4,4,5,5-tetramethylimidazolin-1-oxyl 3-oxide (hnn) as mu-1,4 and mu-1,5 bridging ligands, respectively, carrying an unpaired electron in development of metal-radica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec95b653e8425238979aae04d3864ca9
https://doi.org/10.1021/ic034392x
https://doi.org/10.1021/ic034392x
Autor:
Yosuke Aoyagi, Tadashi Endo, Fujiko Iwasaki, Hiroki Uchiyama, Tomokuni Arisato, Masanori Yasui, Naoko Miki, Toshiyuki Yamazaki, Daisuke Hashizume
Publikováno v:
Acta Crystallographica Section B Structural Science. 59:404-415
The process of the first-order solid-to-solid phase transition of 1-ethyl-3-(4-methylpentanoyl)urea (1) was observed by means of a detailed temperature-resolved single-crystal diffraction method, which resembles watching a series of stop-motion photo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::611d28f61090f9dc5037fe1a9dd9a096
https://doi.org/10.1107/s0108768103005792
https://doi.org/10.1107/s0108768103005792
Autor:
Tsunao Konishi, Kazuhiko Mizuno, Fujiko Iwasaki, Masanori Yasui, Noboru Matsumura, Hirokazu Hayashi
Publikováno v:
Journal of Heterocyclic Chemistry. 39:189-202
Macrocyclic compounds 5a-i bearing two tetraazathiapentalene frameworks were synthesized by the reaction of 10-S-3 tetraazathiapentalene derivatives 3a-f with compounds having various diisothiocyanate functions 4a-e. The reduction of the macrocyclic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b63fb9a4840948e8ddefd7efbd55cbac
https://doi.org/10.1002/jhet.5570390128
https://doi.org/10.1002/jhet.5570390128
Publikováno v:
ResearcherID
4-Pyrimidinyl nitronyl nitroxide (4PMNN) was synthesized and characterized, and four 4PMNN-metal(II) chloride complexes were investigated. Hexanuclear macrocyclic [CuCl 2 ·(4PMNN)] 6 shows intermolecular ferromagnetic interaction. MnCl 2 ·(4PMNN) e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0974cb3d2f501c62ca815a17771c9edd
https://doi.org/10.1080/713738394
https://doi.org/10.1080/713738394
Publikováno v:
Molecular Crystals and Liquid Crystals. 376:519-524
Experimental electron density distributions of [Cu(NO 3 ) 2 (H 2 O) 2 (pm) 2 ] ( 1 ) and [MCl 2 (pm) 2 ] ( 2 :M=Co, 3 :M=Fe) (pm=pyrimidine) showing antiferromagnetic interactions were determined by the X-ray diffraction method using the multipole ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15775f9cb5777b1d4c5da43877941015
https://doi.org/10.1080/713738465
https://doi.org/10.1080/713738465
Magnetic Phase Transition of FE II , CO II and NI II Complexes Bridged by Pyrimidine and Dicyanamide
Publikováno v:
Molecular Crystals and Liquid Crystals. 376:463-468
X-Ray diffraction study reveals that complexes M II [N(CN) 2 ] 2 -(pyrimidine) (M=Fe, Co, Ni) have an isomorphous 3-D network, in which N(CN) 2 − and pyrimidine contribute μ-1,5-bridged 2-D and μ-1,3-bridged 1-D structures, respectively. Magnetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c92edf8505d624df5ab0bd46e8163203
https://doi.org/10.1080/713738437
https://doi.org/10.1080/713738437
Publikováno v:
Acta Crystallographica Section B Structural Science. 57:772-779
Crystals of bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)bispyrimidinecopper(II) (1), bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)bis(4-methylpyrimidine)copper(II) (2), bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)bis(quinazoline)copper(II) (3) s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81e086d1662b059261be663a550e2675
https://doi.org/10.1107/s0108768101013568
https://doi.org/10.1107/s0108768101013568
Publikováno v:
Inorganic Chemistry. 40:3954-3958
Complexation of copper(II) bromide and chloride with 4-pyrimidinyl nitronyl nitroxide (4PMNN) as a bridging ligand gave discrete hexanuclear complexes carrying 12 spins, [CuX(2).(4PMNN)](6) [X = Br (1), Cl (2)], which crystallize in a trigonal space
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9d64b72d70434463ba8cda4f2de0c88
https://doi.org/10.1021/ic001462g
https://doi.org/10.1021/ic001462g