波谱学杂志 ›› 1993, Vol. 10 ›› Issue (2): 117-122.

• 研究论文 • 上一篇    下一篇

二维旋转边带分解实验

丁克洋, 杜有如, 叶朝辉   

  1. 中国科学院武汉物理所波谱与原子分子物理国家重点实验室, 武汉 430071
  • 收稿日期:1992-03-10 修回日期:1992-05-13 出版日期:1993-06-05 发布日期:2018-01-20
  • 基金资助:
    国家自然科学基金

TWO-DIMENSIONAL ROTATIONAL SIDEBANDS RESOLVED EXPERIMENTS

Ding Keyang, Du Youru, Ye Chaohui   

  1. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, The Chinese Academy of Sciences, Wuhan 430071
  • Received:1992-03-10 Revised:1992-05-13 Online:1993-06-05 Published:2018-01-20

摘要: 描述了一类新的二维旋转边带分解实验,准备期包括交叉极化、若干个以TOSS序列的延迟加上的π脉冲和一个π/2脉冲,混合期包括一个π/2脉冲和一个TOSS序列,在演化期内,磁化矢量位于z方向。本实验能给出完全分解的各向同性化学位移与各向异性化学位移,它与Kolbert等人[5]的实验方法相互补充。

关键词: 旋转边带, 二维谱, 分解实验

Abstract: In this paper, we describe a new type of two-dimensional resolved MAS experiments involving a preparation period utilizing cross polarization, several π pulses applied at the TOSS timings and a π/2 pulse, an evolution period in which the magnetization vector is in the z axis and a mixing period composed of a π/2 pulse and a TOSS sequence. The experimental schemes proposed in this paper can yield a complete separation of isotropic and anisotropic chemical shifts, which is a complementary method to the Kolbert's experiment[5].

Key words: Rotational sidebands, 2D spectrum, Resolved experiment