Table 2 Equilibrium constants \(K_{{{\text{O}}_{2} }}\) of dioxygen uptake in the Co(II)–l-α-amino acid–imidazole–O2 systems
Amac | Co(II):amac:Himid (mmole ratio) | Log \(K_{{{\text{O}}_{2} }}\) |
|---|---|---|
Alanine | 0.3:0.5:0.3 | 9.442 10.957 10.216 |
0.3:0.6:0.3 | 8.348 9.200 8.650 | |
0.3:0.75:0.3 | 10.061 10.107 10.100 | |
Mean: 9.7 ± 0.8 | ||
Asparagine | 0.3:0.45:0.3 | 7.377 8.739 7.996 |
0.3:0.6:0.3 | 7.520 8.246 7.959 | |
0.3:0.75:0.3 | 7.609 7.831 7.743 | |
0.3:0.9:0.3 | 7.371 7.593 7.439 | |
0.3:1.2:0.3 | 7.952 7.997 7.978 | |
Mean: 7.8 ± 0.4 | ||
Histidine | 0.3:0.15:0.3 | 15.050 15.422 15.425 |
0.3:0.375:0.3 | 14.002 14.175 14.179 | |
0.3:0.45:0.3 | 15.585 15.712 15.714 | |
0.3:0.6:0.3 | 14.537 14.471 14.475 | |
Mean: 14.9 ± 0.7 | ||