The resonance Raman spectrum of the transient species (λmax = 475 nm, τ½ = 1.6 μs) formed by pulse radiolysis of aqueous solutions of thiocyanate, SCN2−, is reported. The spectrum is discussed in terms of the previous assignment of this transient to the radical anion, (SCN)−2. The observed vibrational frequencies of the radical anion are consistent with substantial weakening of the S---S and the Ctriple bond; length as m-dashN bonds are compared with neutral thiocyanogen.
Wilbrandt, R. W., Jensen, N. H., Pagsberg, P. B., Sillesen, A. H., Hansen, K. B., & Hester, R. E. (1979). Resonance Raman Spectrum of the Transient (SCN)2 Free Radical Anion. Chemical Physics Letters, 60(2), 315-319. https://doi.org/10.1016/0009-2614(79)80042-1