Compound |
Step |
Coats-Redfern equation |
Horowitz-Metzger equation |
r |
n |
E |
Z |
r |
n |
E |
Z |
1 |
1st |
0.9919 |
0.00 |
97.1 |
1.95 x 103 |
0.9983 |
0.00 |
105.1 |
5.19 x 104 |
0.9907 |
0.33 |
106.2 |
2.13 x 103 |
0.9987 |
0.33 |
114.1 |
1.07 x 105 |
0.9912 |
0.50 |
111.2 |
2.24 x 103 |
0.9988 |
0.50 |
118.6 |
1.57 x 105 |
0.9901 |
0.66 |
116.0 |
2.34 x 103 |
0.9990 |
0.66 |
123.5 |
2.32 x 105 |
0.9895 |
1.00 |
125.7 |
2.53 x 103 |
0.9992 |
1.00 |
133.4 |
5.11 x 105 |
0.9967 |
2.00 |
159.7 |
3.24 x 103 |
0.9997 |
2.00 |
166.7 |
6.39 x 106 |
4 |
1st |
0.9968 |
0.00 |
18.4 |
5.34 x 106 |
0.9996 |
0.00 |
29.6 |
1.57 x 105 |
0.9954 |
0.33 |
23.3 |
4.71 x 102 |
0.9998 |
0.33 |
34.9 |
2.42 x 105 |
0.9952 |
0.50 |
25.5 |
5.16 x 102 |
0.9999 |
0.50 |
37.8 |
7.07 x 105 |
0.9958 |
0.66 |
28.2 |
5.70 x 102 |
0.9999 |
0.66 |
40.7 |
8.05 x 105 |
0.9974 |
1.00 |
34.5 |
6.97 x 102 |
1.0000 |
1.00 |
47.1 |
2.25 x 106 |
0.9920 |
2.00 |
55.1 |
11.07 x 102 |
1.0000 |
2.00 |
69.8 |
11.53 x 106 |
5 |
1st |
0.9972 |
0.00 |
51.35 |
1.03 x 103 |
0.9992 |
0.00 |
53.06 |
3.32 x 106 |
0.9984 |
0.33 |
63.23 |
1.27 x 103 |
0.9996 |
0.33 |
64.15 |
6.65 x 106 |
0.9991 |
0.50 |
70.84 |
1.42 x 103 |
0.9998 |
0.50 |
70.75 |
7.04 x 105 |
0.9994 |
0.66 |
77.97 |
1.56 x 103 |
0.9824 |
0.66 |
89.34 |
5.87 x 106 |
0.9999 |
1.00 |
95.00 |
1.80 x 103 |
0.9998 |
1.00 |
94.13 |
8.83 x 106 |
0.9997 |
2.00 |
156.90 |
3.09 x 103 |
0.9995 |
2.00 |
147.50 |
3.78 x 104 |
E in kJ mol-1, underlined r in all tables represents the best fit values of n and E |