Hydroxyl Pentaammine(pyridine)cobalt(III) ion

Hoffman, M.Z.; Kimmel, D.W.; Simic, M.G.
Inorg. Chem. 18, 2479-2485 (1979)

Reaction: ·OH + Co(NH₃)₅(py)³⁺ ® Co(NH₃)₅pyOH³⁺
Solvent: H₂O

k = 6.5 × 10⁸(L mol^-1 s^-1), pH = 5.2

Experimental method: Pulse radiolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly

Product buildup kinetics at 330 nm; independent of pH 3-9.

Cohen, H.; Meyerstein, D.
J. Chem. Soc., Dalton Trans., 1976-1979 (1976)

Reaction: ·OH + Co(NH₃)₅(py)³⁺ ® Co(NH₃)₅pyOH³⁺
Solvent: H₂O

k = 4.2 × 10⁸(L mol^-1 s^-1), pH = 5.9

Experimental method: Pulse radiolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly

Product buildup kinetics; also c.k. with SCN^-.