Optical Properties of Three Differently Colored Crystal Modifications of a 2,3-Dicyanopyrazine Dye

• Okada, Naoya

• Eto, Ryohei

• Babamoto-Horiguchi, Emi

• Kobayashi, Takashi

• Naito, Hiroyoshi

• Shiro, Motoo

• Takahashi, Hiromi

• Matsumoto, Shinya

抄録

Optical properties of three crystal modifications of 5-t-butyl-2,3-dicyano-6-[4-(dimethylamino)styryl]pyrazine having different color appearances were measured and interpreted on the basis of crystal structure analysis. Two of the three modifications exhibited a bathochromic spectral shift both in absorption and fluorescence compared with those in a toluene solution of the dye. The crystal structure analysis revealed that a two-dimensional brick-wall structure is formed in both modifications. In contrast, the third modification showed a hypsochromic absorption shift with a large bathochromic fluorescence shift. The crystal structure of this modification was characterized by a one-dimensional stacked molecular column. The optical characteristics of the three modifications were qualitatively interpreted in terms of excitonic intermolecular interaction on the basis of their crystal structures.

収録刊行物

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 88 (5), 716-721, 2015

  Chemical Society of Japan

キーワード

• General Chemistry

詳細情報

• CRID: 1050282812779524096
• NII論文ID: 130005069500
• NII書誌ID: AA00580132
• ISSN: 00092673
• ISSN: 13480634
• DOI: 10.1246/bcsj.20140409
• NDL書誌ID: 026383322
• Web Site: http://hdl.handle.net/10131/00011983
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026383322
• Web Site: https://academic.oup.com/bcsj/article-pdf/88/5/716/56277856/bcsj.20140409.pdf
• 本文言語コード: en
• 資料種別: journal article
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