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Indirect detection of 10B (I = 3) overtone NMR at very fast magic angle spinning

Indirect detection of 10B (I = 3) overtone NMR at very fast magic angle spinning
Indirect detection of 10B (I = 3) overtone NMR at very fast magic angle spinning

The application of overtone nuclear magnetic resonance (OT NMR) to symmetric spin transitions of integer quadrupolar nuclei is of considerable interest since this transition is immune to the first-order quadrupolar interaction, thus resulting in narrow NMR lines. Owing to its roles in nature and its high natural abundance, 14N (I = 1) OT NMR has been explored, in which the indirect and/or direct acquisitions of 14N OT were experimentally demonstrated. However, other than 14N nucleus, no OT NMR observation of other integer quadrupolar nuclei has been reported in the literature. In this work, we extend the application of OT NMR to another integer quadrupolar nucleus, namely 10B (I = 3). However, this is not straightforward owing to the unfavorable characteristics of 10B isotope. Here, for the first time, we present the selective acquisition of 10B central (−1 ↔ +1) OT NMR via detection of 1H nuclei on perborate monohydrate sample. Numerical calculations are in a good agreement with the experimental results. Both show that the optimal sensitivity is achieved when the carrier frequency is applied at the second OT spinning sideband, i.e. an offset of twice of the spinning frequency from the center band.

Boron-10, Fast MAS, Indirect detection, Overtone transitions, Solid-state NMR
1090-7807
27-31
Duong, Nghia Tuan
fdea4427-6e28-480b-963e-a2250ef5bb3d
Kuprov, Ilya
bb07f28a-5038-4524-8146-e3fc8344c065
Nishiyama, Yusuke
51e0e6c9-57bd-4d2c-b030-2135c0899924
Duong, Nghia Tuan
fdea4427-6e28-480b-963e-a2250ef5bb3d
Kuprov, Ilya
bb07f28a-5038-4524-8146-e3fc8344c065
Nishiyama, Yusuke
51e0e6c9-57bd-4d2c-b030-2135c0899924

Duong, Nghia Tuan, Kuprov, Ilya and Nishiyama, Yusuke (2018) Indirect detection of 10B (I = 3) overtone NMR at very fast magic angle spinning. Journal of Magnetic Resonance, 291, 27-31. (doi:10.1016/j.jmr.2018.04.004).

Record type: Article

Abstract

The application of overtone nuclear magnetic resonance (OT NMR) to symmetric spin transitions of integer quadrupolar nuclei is of considerable interest since this transition is immune to the first-order quadrupolar interaction, thus resulting in narrow NMR lines. Owing to its roles in nature and its high natural abundance, 14N (I = 1) OT NMR has been explored, in which the indirect and/or direct acquisitions of 14N OT were experimentally demonstrated. However, other than 14N nucleus, no OT NMR observation of other integer quadrupolar nuclei has been reported in the literature. In this work, we extend the application of OT NMR to another integer quadrupolar nucleus, namely 10B (I = 3). However, this is not straightforward owing to the unfavorable characteristics of 10B isotope. Here, for the first time, we present the selective acquisition of 10B central (−1 ↔ +1) OT NMR via detection of 1H nuclei on perborate monohydrate sample. Numerical calculations are in a good agreement with the experimental results. Both show that the optimal sensitivity is achieved when the carrier frequency is applied at the second OT spinning sideband, i.e. an offset of twice of the spinning frequency from the center band.

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More information

Accepted/In Press date: 9 April 2018
e-pub ahead of print date: 11 April 2018
Published date: 1 June 2018
Keywords: Boron-10, Fast MAS, Indirect detection, Overtone transitions, Solid-state NMR

Identifiers

Local EPrints ID: 422420
URI: http://eprints.soton.ac.uk/id/eprint/422420
ISSN: 1090-7807
PURE UUID: d55acaff-4d35-47f7-8642-4f72a791fb9c
ORCID for Ilya Kuprov: ORCID iD orcid.org/0000-0003-0430-2682

Catalogue record

Date deposited: 23 Jul 2018 16:31
Last modified: 18 Mar 2024 03:22

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Contributors

Author: Nghia Tuan Duong
Author: Ilya Kuprov ORCID iD
Author: Yusuke Nishiyama

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