Research Article
Polyethylene Glycol Mediated Kinetic Study of Nitro Decarboxylation of α,β-Unsaturated Acids by Blau’s Fe(III) Phen Complex
Table 3
Activation parameters involving rate constant
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| Substrate | PEG | | | | | dm3 mol−1 s−1 at 310 K | kJ/mol | J/K/mol |
| Cinnamic acid | 200 | 2318 | 21.7 | 56.2 | −111 | 300 | 5925 | 58.8 | 62.0 | −10.2 | 400 | 1975 | 23.8 | 56.2 | −104 | 600 | 2857 | 36.5 | 55.7 | −62.0 |
| Crotonic acid | 200 | 3404 | 30.2 | 54.6 | −78.6 | 300 | 5925 | 37.2 | 54.0 | −54.0 | 400 | 2000 | 38.4 | 56.0 | −56.6 | 600 | 2857 | 43.9 | 54.5 | −34.2 |
| Acrylic acid | 200 | 1975 | 23.8 | 56.2 | −104 | 300 | 3636 | 46.9 | 54.0 | −23.1 | 400 | 3404 | 44.0 | 54.2 | −33.2 | 600 | 2857 | 46.5 | 57.7 | −28.6 |
| Methoxy cinnamic acid | 200 | 1584 | 18.3 | 56.6 | −122 | 300 | 5333 | 34.5 | 66.6 | 4.0 | 400 | 3018 | 75.2 | 72.9 | 7.5 | 600 | 2857 | 36.5 | 38.8 | −7.4 |
| Nitro cinnamic acid | 200 | 2318 | 21.0 | 56.2 | −113 | 300 | 5925 | 54.8 | 55.1 | −1.1 | 400 | 3404 | 41.3 | 54.3 | −41.7 | 600 | 3809 | 38.2 | 54.4 | −52.5 |
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