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Chapter 16. Q-space singlet NMR

Chapter 16. Q-space singlet NMR
Chapter 16. Q-space singlet NMR
Long-lived singlet spin states can be used to characterise the structures of microscopic pores in a liquid environment using NMR q-space diffusion imaging. The longer lifetimes of singlet states compared to conventional NMR spin coherences allow the extension of the measurements to larger pores. Two different pulsed gradient NMR q-space diffusion methods for singlet states can be utilised depending on the type of probe molecule and the dimension of the porous system. The first method, which incorporates a spin-locking pulse, is specifically designed for molecules with two spins that are weakly coupled, while the second method, that includes a series of spin-echo trains, is intended for molecules with nearly equivalent spins that are strongly coupled. These advances involving singlet states have allowed the investigation of macroscopic pores (e.g., capillaries and rectangular pores) with dimensions up to 2 mm to be studied by q-space NMR. This chapter covers the theory of q-space diffusion imaging using singlet states together with recent experimental examples from the literature.
2044-2548
302-319
Royal Society of Chemistry
Torres, Allan M.
82fde34e-9571-4db9-ac7a-7b622444dff3
Pileio, Giuseppe
13f78e66-0707-4438-b9c9-6dbd3eb7d4e8
Price, William S.
b7888f47-e3fc-46f4-9fb9-7839052ff17c
Pileio, Giuseppe
Torres, Allan M.
82fde34e-9571-4db9-ac7a-7b622444dff3
Pileio, Giuseppe
13f78e66-0707-4438-b9c9-6dbd3eb7d4e8
Price, William S.
b7888f47-e3fc-46f4-9fb9-7839052ff17c
Pileio, Giuseppe

Torres, Allan M., Pileio, Giuseppe and Price, William S. (2020) Chapter 16. Q-space singlet NMR. In, Pileio, Giuseppe (ed.) Long-lived Nuclear Spin Order: Theory and Applications. (New Developments in NMR, , (doi:10.1039/9781788019972-00302)) London. Royal Society of Chemistry, pp. 302-319. (doi:10.1039/9781788019972-00302).

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Abstract

Long-lived singlet spin states can be used to characterise the structures of microscopic pores in a liquid environment using NMR q-space diffusion imaging. The longer lifetimes of singlet states compared to conventional NMR spin coherences allow the extension of the measurements to larger pores. Two different pulsed gradient NMR q-space diffusion methods for singlet states can be utilised depending on the type of probe molecule and the dimension of the porous system. The first method, which incorporates a spin-locking pulse, is specifically designed for molecules with two spins that are weakly coupled, while the second method, that includes a series of spin-echo trains, is intended for molecules with nearly equivalent spins that are strongly coupled. These advances involving singlet states have allowed the investigation of macroscopic pores (e.g., capillaries and rectangular pores) with dimensions up to 2 mm to be studied by q-space NMR. This chapter covers the theory of q-space diffusion imaging using singlet states together with recent experimental examples from the literature.

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Published date: 15 April 2020

Identifiers

Local EPrints ID: 442423
URI: http://eprints.soton.ac.uk/id/eprint/442423
ISSN: 2044-2548
PURE UUID: 408ea53c-474c-4ff4-8b58-acba59bc8068
ORCID for Giuseppe Pileio: ORCID iD orcid.org/0000-0001-9223-3896

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Date deposited: 15 Jul 2020 16:31
Last modified: 18 Feb 2021 17:06

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Contributors

Author: Allan M. Torres
Author: Giuseppe Pileio ORCID iD
Editor: Giuseppe Pileio

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