Table 4 Results of combustion energy determination for investigated compounds
From: Thermodynamic properties of some isomeric 5-(nitrophenyl)-furyl-2 derivatives
m(cpd), g | ΔT, V | ΔUfuse, J | ΔUHNO3, J | ΔUcarbon, J | ΔUter, J | − ∆cU(cpd), J g−1 | m exp /m cal |
|---|---|---|---|---|---|---|---|
5-(2-Nitrophenyl)-2-furaldehyde oxime | |||||||
0.13947 | 0.25347 | 106.7 | 7.7 | 22.3 | 412.4 | 23,464 | 0.9996 |
0.18548 | 0.33140 | 119.5 | 11.8 | 27.6 | 473.7 | 23,510 | 1.0002 |
0.16006 | 0.28787 | 106.2 | 4.1 | 20 | 434.6 | 23,520 | 0.9985 |
0.20085 | 0.35193 | 124.4 | 8.9 | 39.5 | 427.2 | 23,515 | 0.9961 |
0.17080 | 0.30603 | 118.1 | 8.9 | 23.6 | 441.8 | 23,507 | 0.9998 |
0.17019 | 0.30680 | 111.2 | 9.4 | 38.2 | 488 | 23,510 | 0.9987 |
0.19456 | 0.34651 | 121.3 | 11.2 | 43.5 | 505.5 | 23,483 | 0.9959 |
− ∆cU(cpd)average = 23,501 ± 17 J g−1 | |||||||
5-(3-Nitrophenyl)-2-furaldehyde oxime | |||||||
0.15358 | 0.31158 | 82.0 | 10.0 | 28.5 | 982.4 | 23,421 | 0.9968 |
0.26843 | 0.46052 | 94.5 | 14.8 | 28.2 | 499.8 | 23,400 | 0.9952 |
0.14936 | 0.27347 | 82.4 | 7.1 | 48.4 | 534.1 | 23,431 | 0.9998 |
0.14361 | 0.26148 | 121.2 | 7.1 | 25.1 | 424.5 | 23,456 | 1.0000 |
0.15737 | 0.28468 | 120.7 | 7.1 | 27.4 | 453.2 | 23,438 | 0.9987 |
0.18331 | 0.32799 | 99.5 | 8.9 | 28.2 | 510.2 | 23,400 | 0.9990 |
0.13068 | 0.24331 | 99.4 | 7.7 | 25.3 | 483.8 | 23,416 | 0.9991 |
− ∆cU(cpd)average = 23,429 ± 16 J g−1 | |||||||
5-(4-Nitrophenyl)-2-furaldehyde oxime | |||||||
0.20572 | 0.36079 | 106.5 | 14.2 | 27.7 | 486.0 | 23,319 | 1.0000 |
0.12488 | 0.23304 | 104.1 | 4.7 | 23.9 | 473.6 | 23,335 | 0.9989 |
0.17515 | 0.34180 | 117.1 | 8.3 | 32.3 | 902.4 | 23,395 | 0.9999 |
0.21358 | 0.40512 | 120.3 | 13.0 | 27.2 | 946.7 | 23,335 | 0.9992 |
0.18755 | 0.36144 | 136.0 | 9.4 | 21.3 | 884.7 | 23,338 | 0.9999 |
0.24203 | 0.44750 | 127.9 | 13.6 | 31.7 | 913.2 | 23,324 | 0.9987 |
0.16330 | 0.32067 | 120.1 | 8.9 | 23.6 | 858.2 | 23,360 | 0.9965 |
− ∆cU(cpd)average = 23,344 ± 22 J g−1 | |||||||
3-[5-(2-Nitrolphenyl)-2-furyl]acrylic acid | |||||||
0.31440 | 0.49265 | 82.0 | 3.5 | 29.9 | – | 23,172 | 0.9968 |
0.37839 | 0.59087 | 72.3 | 4.7 | 28.4 | – | 23,140 | 0.9992 |
0.33991 | 0.53119 | 85.7 | 8.9 | 53.3 | – | 23,165 | 0.9973 |
0.36358 | 0.56796 | 78.7 | 9.4 | 30.8 | – | 23,120 | 0.9965 |
0.41155 | 0.64234 | 74.8 | 9.4 | 30.8 | – | 23,127 | 0.9978 |
0.13428 | 0.21518 | 129.3 | 4.7 | 34.1 | – | 23,134 | 0.9995 |
0.12360 | 0.19809 | 113.3 | 4.1 | 28.2 | – | 23,160 | 0.9997 |
− ∆cU(cpd)average = 23,145 ± 20 J g−1 | |||||||
3-[5-(3-Nitrolphenyl)-2-furyl]acrylic acid | |||||||
0.21935 | 0.3439 | 97.3 | 7.1 | 46.9 | – | 23,100 | 0.9985 |
0.23066 | 0.36164 | 103.8 | 8.9 | 24.9 | – | 23,062 | 0.9962 |
0.19197 | 0.30458 | 110.9 | 7.7 | 21.3 | – | 23,135 | 1.0000 |
0.27004 | 0.42269 | 80.2 | 13.0 | 24.3 | – | 23,069 | 0.9998 |
0.24827 | 0.39045 | 97.7 | 10.6 | 22.8 | – | 23,090 | 0.9986 |
0.24804 | 0.38918 | 84.7 | 12.4 | 28.5 | – | 23,103 | 0.9991 |
0.24000 | 0.37684 | 91.5 | 10.0 | 24.4 | – | 23,076 | 0.9979 |
− ∆cU(cpd)average = 23,091 ± 22 J g−1 | |||||||
3-[5-(4-Nitrolphenyl)-2-furyl]acrylic acid | |||||||
0.16072 | 0.25432 | 106.7 | 5.9 | 22.8 | – | 23,020 | 0.9999 |
0.17773 | 0.27984 | 101.4 | 7.7 | 25.1 | – | 22,989 | 0.9999 |
0.23568 | 0.37014 | 115.7 | 10.0 | 27.2 | – | 22,985 | 0.9996 |
0.16126 | 0.25492 | 101.1 | 5.9 | 23.3 | – | 23,036 | 0.9998 |
0.19640 | 0.30968 | 99.9 | 8.3 | 23.0 | – | 23,062 | 0.9997 |
0.16949 | 0.26797 | 112.3 | 6.5 | 23.5 | – | 22,997 | 0.9999 |
0.16084 | 0.25462 | 102.3 | 4.7 | 20.3 | – | 23,050 | 0.9995 |
− ∆cU(cpd)average = 23,020 ± 26 J g−1 | |||||||