Zobrazeno 1 - 10 of 65 pro vyhledávání: '"Sei Tsuboyama"'
1
Theoretical study of chloro-α,β,γ,δ-tetraphenylporphyrinato cobalt(III) dimer reaction: A reaction path to form π cation radicals
Autor: Kiyoko Yamamoto, Yuji Kohno, Sei Tsuboyama, Kazuki Mori
Publikováno v: Chemical Physics. 523:28-33
Chloro-α,β,γ,δ-tetraphenylporphyrinato-cobalt(III) (Co(III)TPPCl) is a five-coordinate Co complex ([Co(III)(N)4Cl]) having square-pyramidal structure with chlorine atom at the apex. The compound is diamagnetic. Its 1H NMR spectra in inert solvent
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d701727b5f3eaf86541e17c9ebf6b05a
https://doi.org/10.1016/j.chemphys.2019.03.023
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3
The Aromatic CH/? Hydrogen Bond as an Important Factor in Determining the Relative Stability of Diastereomeric Salts Relevant to Enantiomeric Resolution ? A Crystallographic Database Study
Autor: Hiroko Suezawa, Shinji Ishihara, Motohiro Nishio, Sei Tsuboyama, Yoji Umezawa
Publikováno v: European Journal of Organic Chemistry. 2004:4816-4822
A systematic study was carried out to understand the principle underlying the process of enantiomeric resolution by the use of the Cambridge Structural Database. The crystal structures of fourteen pairs of diastereomeric salts, containing the mandela
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0ba089aa9b731c91ae9daf2e5f77a3f5
https://doi.org/10.1002/ejoc.200400373
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4
CH/π Interactions Implicated in the Crystal Structure of Transition Metal Compounds − A Database Study
Autor: Sei Tsuboyama, Takashi Yoshida, Yoji Umezawa, Hiroko Suezawa, Motohiro Nishio
Publikováno v: European Journal of Inorganic Chemistry. 2002:3148-3155
A statistical study was carried out to investigate the role of the CH/π interaction in the crystal structure of transition metal compounds. Thus, short CH/π distances were surveyed in crystal structures deposited in the Cambridge Structural Databas
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db6e3ec598c5583797de183ff0d16346
https://doi.org/10.1002/1099-0682(200212)2002:12<3148::aid-ejic3148>3.0.co
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5
Hydrogen-Bond-Like Nature of the CH/π Interaction as Evidenced by Crystallographic Database Analyses and Ab Initio Molecular Orbital Calculations
Autor: Shuji Tomoda, Yoji Umezawa, Osamu Takahashi, Michio Iwaoka, Ko Saito, Sei Tsuboyama, Yuji Kohno, Sachiyo Iwasaki, Motohiro Nishio
Publikováno v: Bulletin of the Chemical Society of Japan. 74:2421-2430
Spatial distribution of CH hydrogen atoms with reference to a six-membered carbon aromatic ring was analyzed in the crystal structures deposited in the Cambridge Structural Database (CSD). The crystal data showed the propensity that the CH hydrogen a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c22baa1ea27f72bc94260a01e089e86f
https://doi.org/10.1246/bcsj.74.2421
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6
The CH⋯π interaction as an important factor in the crystal packing and in determining the structure of clathratesA comprehensive literature list for the CH⋯π interaction is available on the following website: http://www.tim.hi-ho.ne.jp/dionisio
Autor: Takashi Yoshida, Kazumasa Honda, Hiroki Takahashi, Minoru Hirota, Sei Tsuboyama, Motohiro Nishio, Hiroko Suezawa, Yoji Umezawa
Publikováno v: Journal of the Chemical Society, Perkin Transactions 2. :2053-2058
Crystal structures in the Cambridge Structural Database (CSD) were examined to investigate the role of the CH⋯π interaction in the crystal packing and the structure of clathrates. More than 77% of organic crystals have been found to bear CH⋯π i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c7c6959f9f99c0a11db5bd5eee6e0389
https://doi.org/10.1039/b106052j
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7
Chiral Recognition of α-Amino Acids by an Optically Active (2S,5S,8S,11S)-2,5,8,11-Tetraethyl Cyclen Cobalt(III) Complex
Autor: Sei Tsuboyama, Yasuyo Ogura, Mitsuhiko Shionoya, Shohei Tashiro, Kaoru Tsuboyama
Publikováno v: Inorganic Chemistry. 50:4-6
The optically active cobalt(III) complex with chiral cyclen, (2S,5S,8S,11S)-2,5,8,11-tetraethyl-1,4,7,10-tetraazacyclododecane, preferentially binds to D-phenylglycine (D-Phg) or D-t-leucine (D-t-Leu) rather than L-Phg or L-t-Leu, respectively, with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdad3e2dda9381bdf3e4bd4642ff6f7d
https://doi.org/10.1021/ic101760k
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8
CH/π interaction in the conformation of peptides. A database study † †This paper is dedicated to the memory of the late Professor Sir Derek H. R. Barton, the founder of the concept of conformation. The authors sincerely regret the immeasurable loss of an outstanding figure in the world of science
Autor: Motohiro Nishio, Yoji Umezawa, Hiroki Takahashi, Jun Uzawa, Sei Tsuboyama
Publikováno v: Bioorganic & Medicinal Chemistry. 7:2021-2026
A study was carried out, with use of the Cambridge Structural Database, to examine the role of the CH/π interaction in the conformation of peptides. A number of short intramolecular CH/π distances have been shown in the crystal structure of peptide
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1b01c771ecf6a9d623a540cf5d2fd9b
https://doi.org/10.1016/s0968-0896(99)00123-6
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9
interaction in the conformation of organic compounds. A database study
Autor: Motohiro Nishio, Jun Uzawa, Sei Tsuboyama, Hiroki Takahashi, Yoji Umezawa
Publikováno v: Tetrahedron. 55:10047-10056
A study was carried out, with use of the Cambridge Structural Database, to examine the role of CH π interaction in the conformation of organic compounds. A number of short intramolecular CH π distances have been disclosed in the crystal structure o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d6eeb6ae3c2e01d74c858b5112917c6
https://doi.org/10.1016/s0040-4020(99)00539-6
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10
CH/πInteraction in the Crystal Structure of Organic Compounds. A Database Study
Autor: Sei Tsuboyama, Jun Uzawa, Yoji Umezawa, Motohiro Nishio, Kazumasa Honda
Publikováno v: Bulletin of the Chemical Society of Japan. 71:1207-1213
The CH/π interaction is a weak molecular force occurring between CH groups and π-groups. A study was carried out by use of the Cambridge Structural Database in order to obtain insights into the nature of the CH/π interaction and to examine its rol
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b93616df4e2b2427f6f253bcacab6c8b
https://doi.org/10.1246/bcsj.71.1207
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