the cysteine (CYS) complex, and about 150 M −1 s − for the complexes at 25°C. A mechanism for these reactions is proposed which is consistent with the observed rate law ansd the known chemistry of Mo(V) in solution.
[Mo 2 O 4] 2+-[Mo 2 O 4(ED
TS)] 2−,[Mo 2 O 4(CYS)2] 2−,[Mo 2 O 4(HIS)2],[Mo 2 O 4(
CIT)2] 4--和[Mo 2 O 4(HP 3 O 10)2] 6--在
水溶液中与CN-混合,生成
钼酸盐和[Mo(O)(OH)(CN)4 ] 3−。这些反应的速率定律是速率= k [Mo 2 O 2+ 4-络合物] [OH-],其中对于
EDTA络合物,k = 0.020 M -1 s-,对于半胱
氨酸(CYS,77 M -1 s- )络合物,在25°C时约150 M -1 s-。提出了这些反应的机制,该机制与观察到的速率定律和溶液中Mo(V)的已知
化学性质相符。