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Citation: Gu Chun-Gang, Wu Ding-Quan, Qu Song-Sheng. Studies on Thermochemistry of Porphyrins III.The Stndard Energies of Combustion and Standard Enthalpies of Formation of Tetranitrophenylporphyrin and Tetrapyridinylporphyrin[J]. Acta Physico-Chimica Sinica, ;1989, 5(01): 95-98. doi: 10.3866/PKU.WHXB19890120 shu

Studies on Thermochemistry of Porphyrins III.The Stndard Energies of Combustion and Standard Enthalpies of Formation of Tetranitrophenylporphyrin and Tetrapyridinylporphyrin

1.
Department of Chemistry,　Wuhan University,　Wuhan

Received Date: 26 June 1987
Available Online: 15 February 1989

Using a precision static oxygen-bomb calorimeter, the standard energies of combustion at 298.15K of tetra-(p-nitrophenyl)-porphyrin, tetra-(3-pyridinyl)porphyrin were determined to be -27.412±0.012, -32.749±0.011 kJg~(-1), and the corresponding standard enthalpies of formation at 298.15 K were calculated to be 751.0±11.0, 811.8±8.6 kJ mol~(-1), respectively. The uncertainties of the results are given as twice of the final over-all standard deviation of the main.
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