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Solution NMR spectroscopy of single-molecule magnets

Solution NMR spectroscopy provides access to important structural, electronic, and magnetic properties of single molecule magnets (SMMs), although such data are recorded well above the temperature at which permanent magnetization is maintained. The magnetic anisotropy, an essential requirement for S...

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1. Verfasser: Enders, Markus (VerfasserIn)
Dokumenttyp: Kapitel/Artikel
Sprache:Englisch
Veröffentlicht: 2023
In: Reference module in chemistry, molecular sciences and chemical engineering
Year: 2023, Pages: 209-229
DOI:10.1016/B978-0-12-823144-9.00038-8
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/B978-0-12-823144-9.00038-8
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/B9780128231449000388
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Verfasserangaben:Markus Enders

MARC

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520 |a Solution NMR spectroscopy provides access to important structural, electronic, and magnetic properties of single molecule magnets (SMMs), although such data are recorded well above the temperature at which permanent magnetization is maintained. The magnetic anisotropy, an essential requirement for SMMs, is expressed in the NMR spectra and can therefore be determined experimentally by NMR. Delocalization of unpaired electron density onto the ligand framework is another important aspect, which is obtainable from NMR spectroscopy. From the temperature dependence of the NMR chemical shift, the ligand field energy splitting in lanthanide-based SMMs can be obtained and can thus predict the occurrence and quality of SMMs. In SMMs based on transition metals, the splitting energy of the zero field can sometimes be determined. In this overview, equations are presented which are necessary for the interpretation of NMR spectra of paramagnetic compounds, with particular relevance for SMM research. Current solution NMR studies of soluble lanthanide and transition metal SMMs are then discussed. 
650 4 |a Fermi-contact shift 
650 4 |a Lanthanides 
650 4 |a Magnetic anisotropy 
650 4 |a Magnetism 
650 4 |a Nuclear magnetic resonance 
650 4 |a Paramagnetic NMR 
650 4 |a Paramagnetic relaxation enhancement 
650 4 |a Phthalocyanine 
650 4 |a Pseudocontact shift 
650 4 |a Single ion magnets 
650 4 |a Single molecule magnets 
650 4 |a Zero field splitting 
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