^<35>Cl NQR in 2,4,6,-Trichloronitrobenze

島根医科大学紀要 10 巻 31-39 頁 1987-12-01 発行
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タイトル
^<35>Cl NQR in 2,4,6,-Trichloronitrobenze
著者
収録物名
島根医科大学紀要
Bulletin of Shimane Medical University
10
開始ページ 31
終了ページ 39
収録物識別子
ISSN 03879097
内容記述
抄録・要旨
2,4,6-Trichloronitrobenzene (TCNB) was examined by means of ^<35>Cl NQR, and two modifications (α- and β-forms) were found. In the enform two resonance lines were observed at room temperature and 77 K, and in the β-form two resonance lines were also found. The lower frequency and the higher frequency lines in each of the modifications were assigned to the chlorine atoms at the para- and ortho-positions, respectively. Zeeman study of ^<35>Cl NQR lines was carried out at room temperature in a single crystal of β-TCNB. It was revealed that the crystal of β-TCNB belongs to a tetragonal system with D_<2d> or D_<4h> symmetry. The angles between the C-Cl bonds and the angles between the plane of the benzene ring and the crystal planes were determined on the basis of the directions of the principal efg axes. The values of the quadrupole coupling constants and the asymmetry parameters were determined. The bond characters of the C-Cl bonds were calculated from the NQR parameters.
主題
NQR
Zeeman effect
polychloronitrobenzene
言語
英語
資源タイプ 紀要論文
出版者
島根医科大学
発行日 1987-12-01
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
関連情報
[NCID] AN00107602