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Dynamics of ferrocene molecules enclathrated in β-cyclodextrin as studied by variable-temperature one-dimensional SASS (switching-angle sample spinning) NMR spectroscopy

✍ Scribed by Daisuke Kuwahara; Fumio Imashiro; Takehiko Terao

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 369 KB
Volume: 204
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)89199-r

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✦ Synopsis

The four guest ferrocene molecules in the unit cell of the j3-cyclodextrin/ferrocene inclusion compound crystal were found to have three different configurations among the five possible sites and exchange among the three; the enthalpy (m) and entropy (ds) differences between two degenerate configurations and the other were obtained to be 4.8f2.5 kcal/mol and 19 +9 eu, respectively.

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Study of the dynamics of ferrocene enclathrated in β- and γ-cyclodextrins by one-dimensional switching-angle sample spinning NMR spectroscopy

✍ Fumio Imashiro; Daisuke Kuwahara; Nobuyuki Kitazaki; Takehiko Terao 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 188 KB

## Abstract ^13^C chemical shift powder patterns of ferrocene enclathrated in β‐ and γ‐cyclodextrins were measured by one‐dimensional switching‐angle sample spinning NMR spectroscopy. The ferrocene molecules were found to precess with a precession angle of 69° in γ‐cyclodextrin. In β‐cyclodextrin t