ラマン分光法による超臨界ＣＯ２中のアゾベンゼンおよびその誘導体の構造解析

• 池田 照樹

  埼玉大学理工学研究科

• 久保 佳子

  日本分光株式会社

• 山内 芳雄

  日本分光株式会社

• 斎藤 宗雄

  日本分光株式会社

• 豊田 浩一

  埼玉大学理工学研究科

書誌事項

タイトル別名

• Raman Spectroscopic Study of Molecular Structure of Azobenzene and Its Derivatives in Supercritical CO2 Slutions.
• ラマン ブンコウホウ ニヨル チョウリンカイ CO2チュウ ノ アゾベンゼン

抄録

The authors have studied the behavior of Raman shifts of azobenzene and its derivatives in super-critical and liquid CO₂ at 25 and 40°C with respect to the density of CO₂. It has been observed that the Raman peaks of the N = N vibrational mode shifted toward lower wavenumbers with decreasing density of supercritical CO₂. No significant Raman shift was recognized in liquid CO₂, even with changing the density.<BR>For the 1446 cm^-1 line of dimethylaminoazobenzene, the spectral line width increased remarkably at a reduced density of 1.1 by a factor of 4.5 compared with the minimum value (5 cm^-1). No, specific change of the linewidth of CO₂ molecules was observed in the density range applied in the experiment. Such specific spectral broadening suggests that fluctuation of solvation arising from clustering of CO₂ molecules around the solute is very large in the vicinity of the critical density of CO₂.<BR>For azoxybenzene, the density dependency of the peak shifts was negligiblly small as compared with other azobenzene derivatives. However, the peak shifted toward lower wavenumber by 2 cm^-1 with increasing temperature from 25 to 40°C.

収録刊行物

• 化学工学論文集

  化学工学論文集 22 (1), 76-83, 1996

  公益社団法人 化学工学会

キーワード

• Supercritical Fluid
• Raman Spectroscopy
• Azobenzene Derivatives
• Molecular Structure

詳細情報

• CRID: 1390282679484443904
• NII論文ID: 10002667966
• NII書誌ID: AN00037234
• DOI: 10.1252/kakoronbunshu.22.76
• ISSN: 13499203
• ISSN: 0386216X
• NDL書誌ID: 3918367
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3918367
• Web Site: http://www.jstage.jst.go.jp/article/kakoronbunshu1975/22/1/22_1_76/_pdf
• 本文言語コード: ja
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可