CONTRA: Improving the performance of dynamic investigations in natural abundance organic solids by mirror-symmetric constant-time CODEX

REICHERT, Detlef; PASCUI, Ovidiu; BONAGAMBA, Tito José; BELTON, Peter; SCHMIDT, Asher; AZEVEDO, Eduardo Ribeiro de

Artículos de revistas

Fecha

2008

Registro en:

JOURNAL OF MAGNETIC RESONANCE, v.191, n.1, p.141-147, 2008

1090-7807

http://producao.usp.br/handle/BDPI/30051

10.1016/j.jmr.2007.11.003

http://dx.doi.org/10.1016/j.jmr.2007.11.003

http://repositorioslatinoamericanos.uchile.cl/handle/2250/1626691

Autor

REICHERT, Detlef

PASCUI, Ovidiu

BONAGAMBA, Tito José

BELTON, Peter

SCHMIDT, Asher

AZEVEDO, Eduardo Ribeiro de

Institución

Universidade de São Paulo (Brasil)

Resumen

We present a minor but essential modification to the CODEX 1D-MAS exchange experiment. The new CONTRA method, which requires minor changes of the original sequence only, has advantages over the previously introduced S-CODEX, since it is less sensitive to artefacts caused by finite pulse lengths. The performance of this variant, including the finite pulse effect, was confirmed by SIMPSON calculations and demonstrated on a number of dynamic systems. (C) 2007 Elsevier Inc. All rights reserved.

Materias

dynamic solid-state NMR

1D-MAS exchange

CODEX

SIMPSON

CONTRA

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