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In solutions of H 2 SeO 3 , Na 2 SeO 3  , NaHSeO 3  and Na 2 SeO 4  in H 2 O NMR signals of  77 Se have been observed. In these solutions chemical shifts were determined. In a 4 molal solution of Na 2 SeO 3  the ratio of Larmor frequencies υ( 77 Se)/υ( 1 H) has been measured with a high-resolution probe. A value of the magnetic moment of  77 Se in Na 2 SeO 3  at infinite dilution in H 2 O is given: |μ( 77 Se)| = 0.533 299 6(7)μN. Relaxation times T 1  have been measured by the inversion-recovery method. In a 4 molal solution of Na 2 SeO 3  in H 2 O a NOE enhancement of 0.4(1) could be observed.

Fourier Transform NM R Investigations of 77 Se in Aqueous Solutions