'Quenching of Excited States of Metal Complexes

Cr(bpy)₃³⁺

excited state quenched by trans-Co(cyclam)Cl₂⁺

Endicott, J.F.; Ramasami, T.; Gaswick, D.C.; Tamilarasan, R.; Heeg, M.J.; Brubaker, G.R.; Pyke, S.C.
J. Am. Chem. Soc. 105: 5301-10 (1983)

Cr(bpy)₃³⁺ quenched by trans-Co(cyclam)Cl₂⁺
Solvent : H₂O, 1 mol/L NaClO₄, 25ºC, pH 2

k_q = 2.5 x 10⁷(L mol^–1 s^–1)

Mechanism: energy transfer; reductive electron transfer
Experimental methods: conventional flash, absorption, single shot signal