Exercise in modern NMR pulse sequence design: INADEQUATE CR

Abstract

The details of the design and development for a modern NMR pulse sequence, INADEQUATE CR, for enhanced detection of 13C- 13C double-quantum coherence in natural abundance samples are investigated. With the phase shifting capabilities available on modern NMR spectrometers, one pulse can be eliminated from the originally proposed version of INADEQUATE CR, which is important for composite pulse versions designed to cope with large off-resonance effects. Such a compensated pulse sequence is presented. © 2002 Wiley Periodicals, Inc.