Pulse radiolysis studies on radiolytic behavior of ionic liquids of thiocyanate salts

Nagaishi, Ryuji ; Aoyagi, Noboru   ; Shinha, Yusuke; Taguchi, Mitsumasa; Kondo, Takafumi*; Yang, J.*; Yoshida, Yoichi*

Radiolytic behavior of ionic liquids of thiocyanate salts was studied by using the ns-pulse radiolysis technique. The transient absorption of thiocyante dimer radical ion was observed in the liquids, and the rise was within the width of electron pulse. The maximum absorbance of dimer in the liquids was equivalent to that in aqueous solutions, where the dimer is formed from the reaction of thiocyanate ion with OH, and increased linearly with increasing the thiocyanate concentration in the liquids. These indicate that one of the ionization sites of liquids should be thiocyanate ion.