Chapter 10: NMR Microcoils for On-line Reaction Monitoring

M.V. Gomez, A.H. Velders

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Nuclear Magnetic Resonance (NMR) spectroscopy is one of the most important and powerful analytical tools available to the scientific community, and to synthetic chemists in particular. Standard, commercially available, high-field NMR spectrometers (running from 4.7 to 23.5 T, corresponding to 200, respectively 1000 MHz 1H Larmor frequency) have their radiofrequency antennas incorporated in probe heads that allow measuring samples in 5 mm tubes. Commercial probe heads that allow on-flow monitoring of reactions are based on, typically 5 mm, saddle coil designs, but these require relatively large amounts of material and/or have poor filling factors and correspondingly poor mass sensitivity. In 1994 Sweedler and co-workers launched the field of microcoil NMR spectroscopy, and the past two decades have seen several groups starting to fabricate their own small-volume probe-heads. Here we provide an overview of the different types of NMR microcoils that haven been developed to measure volumes in the lower microliter and (sub-)nanoliter scale, and then focus on the main geometries of microcoils exploited for use in reaction monitoring as solenoids, planar spiral, and stripline coils. Several examples are presented of on-flow and stationary reaction monitoring with such microcoils. The rapid progress in the field promises that many more groups will enter the field of NMR microcoil reaction monitoring in the coming years.

Original languageEnglish
Title of host publicationFlow Chemistry: Integrated Approaches for Practical Applications
EditorsSantiago V. Luis, Eduardo Garcia-Verdugo
PublisherRoyal Society of Chemistry
Chapter10
Pages340-365
Number of pages26
Edition62
ISBN (Electronic)9781788014984
DOIs
Publication statusPublished - 27 Sep 2019

Publication series

NameRSC Green Chemistry
Number62
Volume2020-January
ISSN (Print)1757-7039
ISSN (Electronic)1757-7047

Fingerprint

nuclear magnetic resonance
Magnetic Resonance Spectroscopy
Nuclear magnetic resonance
Monitoring
monitoring
Nuclear magnetic resonance spectroscopy
Head
probe
Magnetic resonance spectrometers
spectroscopy
Solenoids
Health Personnel
antenna
Antennas
spectrometer
Geometry
geometry

Cite this

Gomez, M. V., & Velders, A. H. (2019). Chapter 10: NMR Microcoils for On-line Reaction Monitoring. In S. V. Luis, & E. Garcia-Verdugo (Eds.), Flow Chemistry: Integrated Approaches for Practical Applications (62 ed., pp. 340-365). (RSC Green Chemistry; Vol. 2020-January, No. 62). Royal Society of Chemistry. https://doi.org/10.1039/9781788016094-00340
Gomez, M.V. ; Velders, A.H. / Chapter 10: NMR Microcoils for On-line Reaction Monitoring. Flow Chemistry: Integrated Approaches for Practical Applications. editor / Santiago V. Luis ; Eduardo Garcia-Verdugo. 62. ed. Royal Society of Chemistry, 2019. pp. 340-365 (RSC Green Chemistry; 62).
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Gomez, MV & Velders, AH 2019, Chapter 10: NMR Microcoils for On-line Reaction Monitoring. in SV Luis & E Garcia-Verdugo (eds), Flow Chemistry: Integrated Approaches for Practical Applications. 62 edn, RSC Green Chemistry, no. 62, vol. 2020-January, Royal Society of Chemistry, pp. 340-365. https://doi.org/10.1039/9781788016094-00340

Chapter 10: NMR Microcoils for On-line Reaction Monitoring. / Gomez, M.V.; Velders, A.H.

Flow Chemistry: Integrated Approaches for Practical Applications. ed. / Santiago V. Luis; Eduardo Garcia-Verdugo. 62. ed. Royal Society of Chemistry, 2019. p. 340-365 (RSC Green Chemistry; Vol. 2020-January, No. 62).

Research output: Chapter in Book/Report/Conference proceedingChapter

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Gomez MV, Velders AH. Chapter 10: NMR Microcoils for On-line Reaction Monitoring. In Luis SV, Garcia-Verdugo E, editors, Flow Chemistry: Integrated Approaches for Practical Applications. 62 ed. Royal Society of Chemistry. 2019. p. 340-365. (RSC Green Chemistry; 62). https://doi.org/10.1039/9781788016094-00340