Phosphine functionalized single-walled carbon nanotubes

Abstract

Ultrashort single-walled carbon nanotubes (US-SWNTs) were covalently derivatized with triaryl and trialkyl phosphines. The resulting US-SWNT-phosphine oxide derivatives were then reduced to the US-SWNT-phosphines. In addition, a triarylphosphine sulfide derivative was prepared. The products were characterized by ³¹P and ¹³C MAS NMR. The phosphorus NMR indicates a poor correlation between the chemical shifts of molecular phosphines and the chemical shifts of the related US-SWNT-P derivatives.

Keywords:

• phosphine
• single-walled carbon nanotube
• oxide
• ³¹P NMR

Acknowledgements

Financial support for this work is provided by the National Science Foundation (CMMI-0653505), the US Air Force Research Laboratory/Material Laboratory, and the Robert A. Welch Foundation.