STARTMAS: A MAS-based method for acquiring isotropic NMR spectra of spin I=3/2 nuclei in real time

Autor:	Michael J. Thrippleton, Thomas J. Ball, Stefan Steuernagel, Stephen Wimperis, Sharon E. Ashbrook
Rok vydání:	2006
Předmět:	NMR spectra database Sequence Data acquisition Chemistry Isotropy Analytical chemistry General Physics and Astronomy Physical and Theoretical Chemistry Atomic physics Spin (physics) Spinning Ultrashort pulse Spectral line
Zdroj:	Chemical Physics Letters. 431:390-396
ISSN:	0009-2614
DOI:	10.1016/j.cplett.2006.09.075
Popis:	We describe a novel method, which we call STARTMAS, that allows acquisition of high-resolution or ‘isotropic’ spin I = 3/2 NMR spectra in solids in real time. Unlike the DOR technique of Samoson et al. [Mol. Phys. 65 (1988) 1013], STARTMAS is performed on a standard MAS probe and fast spinning rates are possible. The method consists of a multiple-pulse sequence interleaved with real-time data acquisition and exploits satellite (mI = ±3/2 ↔ ±1/2) and double-quantum (±3/2 ↔ ∓1/2) transitions. We show that STARTMAS experiments can be used to obtain one-dimensional DOR-like spectra or provide an ‘ultrafast’ route to high-resolution two-dimensional spectra.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::69997cbd99feda2eaab17062a753a523 https://doi.org/10.1016/j.cplett.2006.09.075 Zobrazit plný text záznamu Full Text from ScienceDirect