Crystallographic and Molecular Orbital Studies of 4-Oxopyrazole 1,2-Dioxides. An Exceptionally Elongted N-N Bond
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概要
- 論文の詳細を見る
An X-ray analysis of 3,5-dimethyl-4-oxopyrazole 1,2-dioxide (1) reveals that the N-N bond is considerably elongated [1.659(5) Å]. The bond lenght calculated by ab initio significantly varied with the change of the calculation level. The bond elongation is considered to arise from the dipole-dipole repulsion between the 〓N→O groups enhanced by the antiaromatic character of the unique ring system.
- 公益社団法人日本薬学会の論文
- 1999-05-15
著者
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HARANO Kazunobu
Faculty of Pharmaceutical Sciences, Sojo University
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Yoshitake Yasuyuki
Faculty of Pharmaceutical Sciences, Sojo University
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ETO Masashi
Faculty of Pharmaceutical Sciences, Kumamoto University
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Eto Masashi
Faculty Of Pharmaceutical Sciences Kumamoto University
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Harano K
Fac. Of Phamaceutical Sciences Sojo Univ.
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Harano Kazunobu
Faculty Of Pharmaceutical Sciences Kumamoto University
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Eto Masashi
Faculty of Pharmaceutical Sciences, Kumamotu University
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Yoshitake Yasuyuki
Faculty of Phamaceutical Sciences, Sojo University
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Harano Kazunobu
Faculty of Phamaceutical Sciences, Sojo University
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