Pt(CN)42– excited state quenched by IO3–

Pt(CN)₄^2– quenched by IO₃^– at conc. 0.0091 mol L^–1
Solvent : H₂O, 24ºC

k_q = 1.4 x 10⁸(L mol^–1 s^–1)

Experimental methods: steady state irradiation, luminescence
Lifetime in the absence of quencher, air free = 0.64 micro sec. (laser flash, luminescence, single shot signal)
Comments: [S] = 0.40 mol/L, as K⁺ salt; forms oligomers