کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5407204 | 1393207 | 2008 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An analysis of phase-modulated heteronuclear dipolar decoupling sequences in solid-state nuclear magnetic resonance
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An analysis of phase-modulated heteronuclear dipolar decoupling sequences in solid-state nuclear magnetic resonance An analysis of phase-modulated heteronuclear dipolar decoupling sequences in solid-state nuclear magnetic resonance](/preview/png/5407204.png)
چکیده انگلیسی
The design of variants of the swept-frequency two-pulse phase modulation sequence for heteronuclear dipolar decoupling in solid-state NMR is reported, their performance evaluated, and compared with other established sequences like TPPM and SPINAL. Simulations performed to probe the role of the homonuclear 1H-1H bath show that the robustness of the decoupling schemes improves with the size of the bath. In addition, these simulations reveal that the homonuclear 1H-1H bath also leads to broad baselines at high MAS rates. Results from a study of the SPINAL decoupling scheme indicate that optimisation of the starting phase and phase increment improves its performance and efficiency at high MAS rates. Additionally, experiments performed on a liquid crystal display the role of the initial phase in SPINAL-64 and sequences in the SWf-TPPM family.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetic Resonance - Volume 193, Issue 1, July 2008, Pages 77-88
Journal: Journal of Magnetic Resonance - Volume 193, Issue 1, July 2008, Pages 77-88
نویسندگان
Rajendra Singh Thakur, Narayanan D. Kurur, P.K. Madhu,