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Motions of Trimethylphosphine Oxide in Carbon Nanotubes as Revealed by Solid‐state NMR |
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| Abstract: | Trimethylphosphine (TMP) has been adsorbed in carbon nanotubes and oxidized to trimethylphosphine oxide (TMPO). 31P spin–lattice relaxation T 1 measurements at temperatures from 203 to 333 K have been employed to investigate the motions of TMPO. The 31P T 1 is found to be monoexponential and isotropic. The activation energy is measured as 4.4 ± 0.3 kcal•mol−1, which is comparable to that of TMP adsorbed on Lewis acid sites in zeolites. |
| Keywords: | motion trimethylphosphine oxide carbon nanotubes solid‐state NMR |