2D-EXSY NMR methods were used to explore diffusion between different domains in zeolites on two very different length scales. Measurements were made on xenon-containing samples consisting of a mixture of NaX and NaY zeolite particles which give distinct resonance lines. The cross peaks observed were...
1) 2D-EXSY NMR 二维核磁共振交换谱1. The isomer conversion of formanilide was investigated by ~(13)C 2D-EXSY NMR,and the conversion rate was obtained by approximation method proposed by ourselves~([5]). 自Ernst1979年创立的二维核磁共振交换谱(2D-EXSY)以来,人们可以仅从一张谱获得复杂体系的...