Na NMR Spectra of Sodium Compounds

The Na MAS NMR spectra of a number of simple sodium compounds show narrow resonances resulting from the very symmetrical Na environments with xq values which are virtually zero (Table 7.1). Other compounds with less symmetrical Na environments show well-defined Na second-order quadrupolar lineshapes which can readily be simulated to give the quadrupolar interaction parameters (Table 7.1). The 

5H2O site 1 0 1.3 0.6 Hanaya Harris (1997) 

2 ppm with respect to aqueous NaCl, while a tetrahedral Na compound (Na2S) had a 8iso value of 49.8 ppm. The five-fold coordinated sodium in NaOH has a 8iso value of 

3 Relationships between the chemical shift and structural parameters 

An objective of several Na NMR studies has been to derive useful relationships between a measured NMR parameter (chemical shift or xq) and some parameter related to the structure. Such relationships can potentially provide unique information about the local bonding environment of the sodium. 

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Na NMR Spectra of Sodium Compounds Relationships between the Na Chemical Shift and Structural Parameters Na NMR of Crystalline Materials Na NMR Studies of Thermal Reactions Na NMR of Glasses... 

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