Chinese Journal of Magnetic Resonance ›› 2001, Vol. 18 ›› Issue (3): 281-289.

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THE OPTIMIZATION OF EXPERIMENTAL PARAMETER AND PROCESSING METHOD OF EXPERIMENTAL DATA FOR MEASUREMENT OF TRANSVERSE RELAXATION TIME (AND SELF-DIFFUSION COEFFICIENT) OF INTERMOLECULAR MULTIPLE QUANTUM COHERENCES IN NMR

ZHENG Shao-kuan1,2, CHEN Zhong1,2*, CHEN Zhi-wei2, LIAO Xin-li2
  

  1. 1.Dept. of Phys.; 2.Dept of Chem., Xiamen Univ., Xiamen  361005, China
  • Received:2001-05-25 Revised:2001-06-21 Published:2001-09-05 Online:2001-09-05
  • About author:*Corresponding author.
  • Supported by:

    国家自然科学基金资助项目(10005006和19975038)和福建省自然 科学基金资助项目(C9910001).

Abstract:

In light of   the CPMG pulse sequence , which is used to measure the transverse rel axation time T2, and of  modified CRAZED pulse sequence, which is designe d to simultan eously measure the transverse relaxation time, T2,n and self-diffusi on coefficient , Dn, of intermolecular multiple quantum coherences (iMQCs) for a highly p olarized  spin system with only one type of spin species, all kinds of factors, which will   affect the measurement of T2T2,n(or Dn), are analyzed. T he processing method of the expe rimental data and the optimization of the experimental parameter for the accurat e measurement of  T2,n and Dn of iMQCs are discussed from the point of view of technique.

Key words: Nuclear magnetic resonance, Intermolecular multiple quantum coherences, Transverse relaxation time, Self-diffusion coefficient, Data manipulation, Optimization of experimental parameter

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