Fullerene as a standard sample for adjusting the NMR spectral resolution in multiple-quantum magic-angle-spinning experiments

Yuichi Shimoikeda; Hiroaki Utsumi; Koji Saito; Tadashi Shimizu; Toshihito Nakai

doi:10.2116/analsci.23.1007

Fullerene as a standard sample for adjusting the NMR spectral resolution in multiple-quantum magic-angle-spinning experiments

Anal Sci. 2007 Aug;23(8):1007-9. doi: 10.2116/analsci.23.1007.

Authors

Yuichi Shimoikeda¹, Hiroaki Utsumi, Koji Saito, Tadashi Shimizu, Toshihito Nakai

Affiliation

¹ JEOL Ltd., Masashino, Akishima, Tokyo, Japan.

PMID: 17690437
DOI: 10.2116/analsci.23.1007

Abstract

A method using fullerene for adjusting the NMR spectral resolution for multiple quantum magic angle spinning (MQMAS) experiments is proposed. To observe its (13)C MAS signal, it is not necessary to apply (1)H decoupling, unavailable with single-resonance MQMAS probes. Although (13)C T(1) of fullerene is rather long, a recycle time of 5 s in shimming yields its signal with sufficiently high sensitivity if setting the appropriate Ernst angles corresponding to magnetic fields. It is demonstrated that so-adjusted high resolution is reflected in the (87)Rb MQMAS spectra of RbNO(3).