The heat capacity, the temperature of fusion (160.962°±0.002°K), the heat of fusion (1290.9±0.4 cal/mole), the vapor pressures, the heat of vaporization, and the entropy of the ideal gas at 1 atm, 230°K 62.12±0.15 cal/deg·mole) have been determined for carbon suboxide. The known structure and the six known fundamental vibrations lead to a calculated entropy of 54.33 cal/deg·mole, exclusive of the unknown seventh fundamental. The unobserved, doubly degenerate bending mode must have a frequency of about 61.6±2.6 cm−1.
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© 1965 American Institute of Physics.
1965
American Institute of Physics
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