Fluorescence and Phosphorescence Properties of Naphthalene in Aqueous D-Glucose Solutions Containing 6-Deoxy-6-iodo-β-cyclodextrin at Room Temperature

• Sanyo Hamai

Bibliographic Information

Other Title

• Fluorescence and Phosphorescence Proper

Abstract

In aqueous solutions, 6-deoxy-6-iodo-β-cyclodextrin (β-CDI) forms a 1 : 1 inclusion complex with naphthalene. The naphthalene fluorescence is quenched upon the formation of the inclusion complex with β-CDI. The room-temperature phosphorescence of naphthalene has been observed from aqueous naphthalene solutions containing both d-glucose and β-CDI. Although the room-temperature phosphorescence has also been observed from aqueous naphthalene solutions containing both d-glucose (5.0 g/5.0 mL) and β-cyclodextrin (1.0 × 10−2 mol dm−3), its intensity amounts to at most 9% of that containing d-glucose (5.0 g/5.0 mL) and β-CDI (1.0 × 10−3mol dm−3). In addition to the high viscosities of d-glucose solutions, the external heavy atom effects of β-CDI cause the appearance of the room-temperature phosphorescence. The room-temperature phosphorescence quantum yield of naphthalene in d-glucose (5.0 g/5.0 mL) solution containing β-CDI (1.0 × 10−3 mol dm−3) has been estimated to be 2.2 × 10−3, which is around 1.8% of the intrinsic phosphorescence quantum yield of naphthalene in ethanol at 77 K.

Journal

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 71 (7), 1549-1554, 1998-07

  Tokyo : Chemical Society of Japan

Keywords

• General Chemistry

Details

• CRID: 1520291854951609728
• NII Article ID: 10008933943
• NII Book ID: AA00580132
• ISSN: 00092673
• ISSN: 13480634
• DOI: 10.1246/bcsj.71.1549
• NDL BIB ID: 4525708
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4525708
• Web Site: https://academic.oup.com/bcsj/article-pdf/71/7/1549/56198893/bcsj.71.1549.pdf
• Text Lang: en
• NDL Source Classification:
  • ZP1(科学技術--化学・化学工業)
• Data Source:
  • NDL
  • Crossref
  • CiNii Articles