• 作者： 張文宗 ; 黃良平 ; 王佩蓮
• 作者服務機構： 台灣大學化學系
• 中文摘要： The pulse sequence for generating coherence transfer(or polarization transfer) is invoked to enhance the signal of heteronuclear two spin order (e.g. 2I/sub Z/S/sub Z/) in a spin system with CH moiety. This allows the observation of selective conversion of Zeeman order, in a sample with natural abundant /sup 13/C nuclei, into two spin order for measuring cross-correlation of chemical shift anisotropy and dipole-dipole interactions. The molecular reorientational correlation time and the orientation of the C-H axis with respect to the principal axes of carboxyl CSA tensor may be determined simultaneously in the relaxation profile of two spin order.
• 英文摘要： --
• 中文關鍵字： Coherence Transfer; Dipole-Dipole Interaction; Spin Order; Multiple Quantum Relaxation; Chemical Shift Anisotropy Interaction
• 英文關鍵字： 多量子弛緩；化學位移異方性交互作用；內聚力轉移；偶極-偶極交互作用；自旋次數