The Solid State ¹³C-NMR and ¹⁹F-NMR Spectra of Some Graphite Fluorides

Authors

Charles A. Wilkie, Marquette UniversityFollow
Gong-Yu Lin, Marquette UniversityFollow
Daniel T. Haworth, Marquette UniversityFollow

Document Type

Article

Language

eng

Publication Date

11-1979

Publisher

Elsevier

Source Publication

Journal of Solid State Chemistry

Source ISSN

0022-4596

Abstract

The solid state ¹³C nuclear magnetic resonance spectra of fluorinated graphites show two resonances, one of which is assigned to aromatic carbon and the other to aliphatic carbon. The resonances are very broad with the high-field resonance centered at about 35 ppm below tetramethylsilane (TMS) and a low-field resonance centered at about 160 ppm below tetramethylsilane. The high-field resonance is typical of an sp³-like carbon and the low-field resonance is assigned to sp²-like carbons. It is found that the aromatic resonance in graphite decreases with an increase in fluorination of the graphite fluorides examined in this study. The ¹⁹F nuclear magnetic resonance spectra of C₄F and CF₁ each show one resonance. The fluorine resonance in C₄F is 180 ppm above CFCI₃ whereas the fluorine resonance in CF₁ is 55 ppm above CFCI₃. These peaks are in the range for fluorine bonded to aromatic and aliphatic carbons, respectively.

Comments

Accepted version. Journal of Solid State Chemistry, Vol. 30, No. 2 (November 1979): 197-201. DOI. © 1979 Elsevier. Used with permission.

Recommended Citation

Wilkie, Charles A.; Lin, Gong-Yu; and Haworth, Daniel T., "The Solid State ¹³C-NMR and ¹⁹F-NMR Spectra of Some Graphite Fluorides" (1979). Chemistry Faculty Research and Publications. 952.
https://epublications.marquette.edu/chem_fac/952