Author/Authors :
Song، نويسنده , , R. and Zhong، نويسنده , , Y.C. and Noble، نويسنده , , C.J. and Pilbrow، نويسنده , , J.R. and Hutton، نويسنده , , D.R.، نويسنده ,
Abstract :
A new six-pulse two-dimensional electron spin echo envelope modulation (2D ESEEM) method is introduced. It is based on augmenting the five-pulse sequence proposed by Gemperle, Schweiger and Ernst with an additional π pulse. It is shown that the intensity ratio of cross peaks to diagonal peaks is significantly enhanced compared with the four-pulse 2D ESEEM method of Höfer, Grupp, Nebenführ and Mehring. A single crystal of KCl doped with Fe(CN)63− is used to demonstrate this new 2D ESEEM spectroscopy together with an effective phase cycling scheme.
