From: Thermodynamic properties of 5(nitrophenyl) furan-2-carbaldehyde isomers
Sample | m(cpd),g | ΔT, V | ΔU Σ , J | ΔU fuse , J | ΔU ter , J | ΔU HNO3 , J | ΔU carbon , J | –∆ c U(cpd), J g−1 | m exp /m calc |
---|---|---|---|---|---|---|---|---|---|
5(2-nitrophenyl)furan-2-carbaldehyde; −∆ c U(cpd) average = 23,674 ± 31 J g−1 | |||||||||
A | 0.32424 | 0.5592 | 8542.9 | 100.4 | 795.4 | 8.3 | 17.6 | 23,701 | 0.9964 |
A | 0.30861 | 0.5368 | 8200.7 | 87.8 | 834.7 | 9.4 | 23.3 | 23,639 | 0.9996 |
A | 0.35576 | 0.6065 | 9265.5 | 94.1 | 800.2 | 10.6 | 40.8 | 23,683 | 0.9972 |
B | 0.27531 | 0.4826 | 7372.7 | 110.4 | 802.6 | 11.8 | 49.6 | 23,677 | 0.9968 |
C | 0.30758 | 0.5366 | 8197.6 | 108.1 | 834.0 | 11.8 | 21.5 | 23,635 | 0.9994 |
C | 0.35026 | 0.5968 | 9117.3 | 112.3 | 698.5 | 11.8 | 5.0 | 23,710 | 0.9994 |
5-(3-nitro phenyl)-furan-2-carbaldehyde; −∆ c U(cpd) average = 23,633 ± 37 J g−1 | |||||||||
A | 0.40261 | 0.6779 | 10,356.3 | 85.2 | 932.0 | 27.7 | 18.4 | 23,595 | 0.9901 |
A | 0.37500 | 0.6246 | 9542.0 | 94.5 | 899.8 | 17.7 | 29.5 | 23,645 | 0.9953 |
B | 0.29162 | 0.4984 | 7614.1 | 84.2 | 791.6 | 23.6 | 17.2 | 23,671 | 0.9952 |
B | 0.32049 | 0.5496 | 8396.2 | 89.6 | 842.5 | 17.7 | 12.8 | 23,581 | 0.9987 |
C | 0.35108 | 0.6020 | 9196.8 | 91.4 | 831.5 | 25.4 | 10.2 | 23,665 | 0.9940 |
C | 0.45773 | 0.7687 | 11,743.4 | 87.3 | 969.5 | 17.9 | 22.4 | 23,640 | 0.9922 |
5-(4-nitro phenyl)-furan-2-carbaldehyde; −∆ c U(cpd) average = 23,533 ± 31 J g−1 | |||||||||
A | 0.34298 | 0.5852 | 8940.1 | 74.3 | 818.3 | 12.9 | 16.9 | 23,507 | 0.9986 |
B | 0.35493 | 0.6003 | 9170.8 | 87.0 | 734.4 | 20.1 | 22.3 | 23,553 | 0.9990 |
B | 0.39564 | 0.6757 | 10,322.7 | 101.3 | 946.3 | 14.8 | 30.5 | 23,520 | 0.9984 |
B | 0.39158 | 0.6564 | 10,027.8 | 97.9 | 771.6 | 14.8 | 26.4 | 23,586 | 0.9929 |
C | 0.37234 | 0.6233 | 9522.2 | 91.6 | 721.7 | 14.8 | 44.8 | 23,510 | 0.9983 |
C | 0.41218 | 0.6907 | 10,551.8 | 100.5 | 782.4 | 14.8 | 31.3 | 23,522 | 0.9990 |