Organic Solutes in Aqueous Solutions

B32

B33

Cysteine

Barnabas, M.V. and Walker, D.C.
Can. J. Chem., 1991, 69, 1252.

Reaction: HS-CH2CHNH2COOH + Mu ® MuH + ?

          or 
HS-CH2CH(NH3+)COOH + Mu ® MuH + ?

Type of reaction: H – atom abstraction (proposed)

kM = 6 x 109 dm3mol-1s-1  

KIE = kM / kH = 6 x 109 / 1.8 x 109 = 3.3

kH = 1.8 x 1010 dm3mol-1s-1  at pH = 6.0  for conjugated acid

from: www.rcdc.nd.edu/compilations/HAtom/H.htm

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