Exploring various modulation-sideband recoupling conditions of SHA+ sequence at fast MAS

Ming Shen; Qinghua Liu; Julien Trébosc; Oliver Lafon; Yuichi Masuda; K. Takegoshi; Jean Paul Amoureux; Bingwen Hu; Qun Chen

doi:10.1016/j.ssnmr.2013.07.001

Exploring various modulation-sideband recoupling conditions of SHA+ sequence at fast MAS

Ming Shen
, Qinghua Liu
, Julien Trébosc
, Oliver Lafon
, Yuichi Masuda
, K. Takegoshi
, Jean Paul Amoureux
, Bingwen Hu^*
, Qun Chen

^*Corresponding author for this work

School of Physics and Electronic Science

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We explore modulation-sideband recoupling conditions of the ¹³C-¹³C Second-order Hamiltonian among Analogous nuclei plus pulse sequence (SHA+), and found that this sequence can be used in two different recoupling regimes. The first regime, ν_R>Δν isomax, is recommended for broad-band recoupling to avoid any rotational resonance broadening. In this regime, the spinning speed should be only slightly larger than Δνisomax, to obtain the best transfer efficiency. The second regime, ν_R<Δνisomax, can be used to observe long-range constraints with lower spinning speed, which increases the transfer efficiency, and may allow using bigger rotors to increase the S/N ratio.

Original language	English
Pages (from-to)	42-47
Number of pages	6
Journal	Solid State Nuclear Magnetic Resonance
Volume	55-56
DOIs	https://doi.org/10.1016/j.ssnmr.2013.07.001
State	Published - Oct 2013

Keywords

Bio-molecules
Fast MAS
Homo-nuclear correlation
Modulation sidebands
Solid-state NMR

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10.1016/j.ssnmr.2013.07.001

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@article{6c81d4097d354b7a85eb367b473dab90,

title = "Exploring various modulation-sideband recoupling conditions of SHA+ sequence at fast MAS",

abstract = "We explore modulation-sideband recoupling conditions of the 13C-13C Second-order Hamiltonian among Analogous nuclei plus pulse sequence (SHA+), and found that this sequence can be used in two different recoupling regimes. The first regime, νR>Δν isomax, is recommended for broad-band recoupling to avoid any rotational resonance broadening. In this regime, the spinning speed should be only slightly larger than Δνisomax, to obtain the best transfer efficiency. The second regime, νR<Δνisomax, can be used to observe long-range constraints with lower spinning speed, which increases the transfer efficiency, and may allow using bigger rotors to increase the S/N ratio.",

keywords = "Bio-molecules, Fast MAS, Homo-nuclear correlation, Modulation sidebands, Solid-state NMR",

author = "Ming Shen and Qinghua Liu and Julien Tr{\'e}bosc and Oliver Lafon and Yuichi Masuda and K. Takegoshi and Amoureux, \{Jean Paul\} and Bingwen Hu and Qun Chen",

year = "2013",

month = oct,

doi = "10.1016/j.ssnmr.2013.07.001",

language = "英语",

volume = "55-56",

pages = "42--47",

journal = "Solid State Nuclear Magnetic Resonance",

issn = "0926-2040",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Exploring various modulation-sideband recoupling conditions of SHA+ sequence at fast MAS

AU - Shen, Ming

AU - Liu, Qinghua

AU - Trébosc, Julien

AU - Lafon, Oliver

AU - Masuda, Yuichi

AU - Takegoshi, K.

AU - Amoureux, Jean Paul

AU - Hu, Bingwen

AU - Chen, Qun

PY - 2013/10

Y1 - 2013/10

N2 - We explore modulation-sideband recoupling conditions of the 13C-13C Second-order Hamiltonian among Analogous nuclei plus pulse sequence (SHA+), and found that this sequence can be used in two different recoupling regimes. The first regime, νR>Δν isomax, is recommended for broad-band recoupling to avoid any rotational resonance broadening. In this regime, the spinning speed should be only slightly larger than Δνisomax, to obtain the best transfer efficiency. The second regime, νR<Δνisomax, can be used to observe long-range constraints with lower spinning speed, which increases the transfer efficiency, and may allow using bigger rotors to increase the S/N ratio.

AB - We explore modulation-sideband recoupling conditions of the 13C-13C Second-order Hamiltonian among Analogous nuclei plus pulse sequence (SHA+), and found that this sequence can be used in two different recoupling regimes. The first regime, νR>Δν isomax, is recommended for broad-band recoupling to avoid any rotational resonance broadening. In this regime, the spinning speed should be only slightly larger than Δνisomax, to obtain the best transfer efficiency. The second regime, νR<Δνisomax, can be used to observe long-range constraints with lower spinning speed, which increases the transfer efficiency, and may allow using bigger rotors to increase the S/N ratio.

KW - Bio-molecules

KW - Fast MAS

KW - Homo-nuclear correlation

KW - Modulation sidebands

KW - Solid-state NMR

UR - https://www.scopus.com/pages/publications/84888006128

U2 - 10.1016/j.ssnmr.2013.07.001

DO - 10.1016/j.ssnmr.2013.07.001

M3 - 文章

C2 - 23953427

AN - SCOPUS:84888006128

SN - 0926-2040

VL - 55-56

SP - 42

EP - 47

JO - Solid State Nuclear Magnetic Resonance

JF - Solid State Nuclear Magnetic Resonance

ER -

Exploring various modulation-sideband recoupling conditions of SHA+ sequence at fast MAS

Abstract

Keywords

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