Cr(4,7-Me2phen)33+ excited state quenched by Cr(4,7-Me2phen)33+

Cr(4,7-Me₂phen)₃³⁺ quenched by Cr(4,7-Me₂phen)₃³⁺
Solvent : H₂O/Acetonitrile (24/1), 1 mol/L HCl, 22ºC

k_q = 1.0 x 10⁷(L mol^–1 s^–1)

Mechanism: collisional deactivation
Experimental methods: laser flash, luminescence, single shot signal
Lifetime in the absence of quencher, air free = 570 micro sec.
Comments: tau₀ extrap'd to [S] = 0

Cr(4,7-Me₂phen)₃³⁺ quenched by Cr(4,7-Me₂phen)₃³⁺
Solvent : H₂O/Acetonitrile (24/1), 1 mol/L NaCl, BRbuf, 22ºC, pH 9.5

k_q = 1.4 x 10⁷(L mol^–1 s^–1)

Mechanism: collisional deactivation
Experimental methods: laser flash, luminescence, single shot signal
Lifetime in the absence of quencher, air free = 420 micro sec.
Comments: tau₀ extrap'd to [S] = 0