(133Cs) Cesium NMR
Use our NMR service that provides 133Cs NMR and many other
Cesium (Cs) has one medium sensitivity NMR active nucleus, 133Cs (fig. 1). It is quadrupolar but has a
very low quadrupole moment and is usually found in symmetric environments and yields narrow signals over a wide
chemical shift range. 133Cesium NMR is mostly used for studying cesium complexes and detecting
Fig. 1. 133Cs-NMR spectrum of CsCl (1 M) in
Each type of cesium its representative
chemical shift range (fig. 2).
Fig. 2. Chemical shift ranges for cesium NMR
Properties of 133Cs
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|Chemical shift range||160 ppm, from -30 to 130|
|Frequency ratio (Ξ)||13.116142%|
|Reference compound||0.1 M CsNO3 in D2O|
|Linewidth of reference||0.12 Hz|
|T1 of reference||5 s|
|Receptivity rel. to 1H at natural abundance||0.0484|
|Receptivity rel. to 1H when enriched||0.0484|
|Receptivity rel. to 13C at natural abundance||284|
|Receptivity rel. to 13C when enriched||284|
|Linewidth parameter||0.016 fm4|
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, cesium salts are toxic in large quantities besides any toxicity arising from the anion.
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