NMR Characterization of Sidewall Functionalized SWNT. By Heather Rhoads. Abstract.
Since the discovery of SWNT (Single walled carbon nanotubes) there has been an intense effort to characterize, understand, and exploit their properties.1, 2 To achieve the full potential of SWNT, they must be debundled into individual SWNTs. Debundling is achieve through several techniques including sidewall functionalization. The functionalization must be proven but currently utilized techniques give little information about the functionalization. More recently nuclear magnetic resonance (NMR) has been utilized to prove functionalization and the structure of the functionalized SWNT. This paper gives background, theory, review of the literature, and future directions.
Ch = n (a1) + m (a2)
Figure 1. The n and m coordinates of SWNT structure.
Figure 2. Top) armchair SWNT, Middle) zigzag SWNT, Bottom) chiral SWNT. 43-44
E = - m B cos q
Mz = Mo (1 - e-t/T1)
1/T2* = 1/T2 + 1/T2inhomo