Hydrogen atom Pentaammine(aqua)cobalt(III) ion

Halpern, J.; Rabani, J.
J. Am. Chem. Soc. 88, 699-704 (1966)

Reaction: H· + Co(NH₃)₅(H₂O)³⁺ ® Co(NH₃)₅(H₂O)²⁺
Reference Reaction: H· + EtOH ®
Solvent: H₂O

k = <7.0 × 10⁵(L mol^-1 s^-1), k_reference = 1.7 × 10⁷(L mol^-1 s^-1), pH = 1

Experimental method: Gamma-radiolysis
Analytical method: chemical analysis
Data type: Limiting value

Competition kinetics

Navon, G.; Stein, G.
J. Phys. Chem. 69, 1390-1394 (1965)

Reaction: H· + Co(NH₃)₅(H₂O)³⁺ ® Co(NH₃)₅(H₂O)²⁺
Solvent: H₂O

pH range 1.8 to 3.9
k = 4.5 × 10⁵(L mol^-1 s^-1)

Experimental method: Discharge
Analytical method: vis-UV absorption
Data type: Relative value measured by steady state method

Detd. from dose rate of H atoms and amount of redn. product. Unrecommended value because of deficiencies in the method.