29Si and 1H NMR of Expandable Mica Ion-exchanged by NH4+

• Hiroaki Noma

  Kyushu National Industrial Research InstituteShuku, Tosu, Saga

• Hiroshi Tateyama

  Kyushu National Industrial Research InstituteShuku, Tosu, Saga

• Satoshi Nishimura

  Kyushu National Industrial Research InstituteShuku, Tosu, Saga

• Kouzou Inoue

  Kyushu National Industrial Research InstituteShuku, Tosu, Saga

Abstract

The 29Si-NMR chemical shift of expandable mica ion-exchanged by NH4+ changes from −95 to −99.5 ppm after heat-treatment at 600 °C, which indicates a change from the mica to a talc structure. The 1H static NMR spectrum of protons remaining in the structure after heating showed a sharp signal with a full width at half maximum of 0.8 kHz at 1.0 ppm, which suggests a rapid proton motion in the structure.

Journal

• Chemistry Letters

  Chemistry Letters 26 (3), 199-200, 1997-03-01

  Oxford University Press (OUP)

Keywords

• General Chemistry

Details

• CRID: 1360565169062742528
• NII Article ID: 10002610089
• NII Book ID: AA00603318
• DOI: 10.1246/cl.1997.199
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/26/3/199/56074349/cl.1997.199.pdf
• Data Source:
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  • CiNii Articles