https://scholars.lib.ntu.edu.tw/handle/123456789/625954
標題: | Solid-state heteronuclear multiple-quantum spectroscopy under a magic-angle spinning frequency of 150 kHz | 作者: | Yuan, ECY Chen, PW Huang, SJ Org, ML Samoson, A CHUN-CHUNG CHAN |
關鍵字: | dipolar order; MAS; shearing; NUCLEAR-MAGNETIC-RESONANCE; COHERENCE TRANSFER; NMR-SPECTROSCOPY; SENSITIVITY ENHANCEMENT; CROSS-POLARIZATION; ADIABATIC PASSAGE; SIDE-BAND; MAS NMR; SPECTRA; H-1-NMR | 公開日期: | 2022 | 出版社: | WILEY-V C H VERLAG GMBH | 卷: | 69 | 期: | 8 | 起(迄)頁: | 1449 | 來源出版物: | JOURNAL OF THE CHINESE CHEMICAL SOCIETY | 摘要: | We hereby demonstrate that 1H detected 15N-1H heteronuclear multiple-quantum spectroscopy can be carried out at a magic angle spinning frequency of 150 kHz. While the 15N-1H multiple-quantum coherences can be directly excited from the dipolar order created by the method of adiabatic demagnetization in the rotating frame, it is technically more advantageous to acquire the chemical shift evolution of the heteronuclear multiple-quantum coherence by two separate chemical shift evolution periods for 1H and 15N. We also show that the heteronuclear multiple-quantum correlation spectrum can be obtained by shearing the corresponding heteronuclear single-quantum correlation spectrum. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/625954 | ISSN: | 0009-4536 | DOI: | 10.1002/jccs.202200063 |
顯示於: | 化學系 |
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