(²⁰⁷Pb) Lead NMR

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Lead (Pb) has one medium sensitivity NMR spin-½ nucleus, ²⁰⁷Pb (fig. 1) that yields narrow signals over an extremely wide chemical shift range (fig. 2). In liquid-state NMR spectroscpy, Lead NMR is used for studying organo lead compounds. In solid state NMR, the chemical shift of Pb(NO₃)₂ is used as an NMR thermometer.

Fig. 1. ²⁰⁷Pb-NMR spectrum of Pb(NO₃)₂ in D₂O

Fig. 2. Chemical shift ranges for lead NMR

Lead shows couplings with other nuclei, ¹H of approximately 2500 Hz and ¹³C up to 16600 Hz.

Properties of ²⁰⁷Pb

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Safety note

Some of the materials mentioned here are very dangerous. Ask a qualified chemist for advice before handling them. Qualified chemists should check the relevant safety literature before handling or giving advice about unfamiliar substances. NMR solvents are toxic and most are flammable. Specifically, lead is very toxic: wear protective clothing.

References

• J. E. H. Buston, T. D. W. Claridge, R. G. Compton, M. G. Moloney, "²⁰⁷Pb NMR chemical shifts of aryllead tricarboxylates" Magn. Reson. Chem. 36, 140-144 (1998).
• V. Sharma, S. Agarwal, R. Bohra, V. K. Jain, "Triethyl-germanium, -tin and -lead complexes derived from internally functionalised oximes" J. Chem. Res. 273-275 (2004).
• H. C. Marsmann, F. Uhlig, Frank, "Further advances in germanium, tin and lead NMR" Ed. Z. Rappoport, "Chemistry of Organic Germanium, Tin and Lead Compounds" 2, 399-459 (2002).
• B. Wrackmeyer, "Application of ²⁰⁷Pb NMR parameters" Ann. Rep. NMR Spectrosc. 47, 1-37, (2002).