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Resonance enhanced Raman scattering from dihalide radical anions $(Cl2-,Br2-,I2-)$ produced by the pulse radiolysis of aqueous solutions of alkali halides has been investigated by time-resolved Raman technique. Raman excitation was at 359 nm and 370 nm for $Cl2-$ and $Br2-$ (absorption peaks at 340 and 360 nm respectively) and at 380 nm for $I2-$ (absorption peak at 380 nm). The fundamental vibrations and a number of overtones were observed. Anharmonicity in the radical vibrations was observed to be small. Spectral line-widths were found to increase with vibrational quantum number. In the pulse radiolysis of NaCl (0.1 to 1M) mixed with KBr (0.01 to 0.2 M) a weak Raman signal from a transient species, tentatively assigned to $BrCl-$ has also been observed. These radicals are observed to decay at microsecond times by diffusion controlled second order reactions.