Infrared and Raman spectra of the nonaaqua yttrium (III) bromate, Y (H2O)9 (BrO3)3, compound have been recorded. Force field calculations have been performed for YO93+ moiety, with a tricapped trigonal prismatic oxygen atom arrangement in D3h point group symmetry. The larger stretching force constant was found, 90.7 Nm-1, for the Y-O prism in comparison with the corresponding value in the capped Y-O, 56.5 Nm-1.