21H,23H-Porphine, 5,10,15,20-tetrakis(4-methoxyphenyl)-

• Formula: C₄₈H₃₈N₄O₄
• Molecular weight: 734.8397
• CAS Registry Number: 22112-78-3
• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
• Options:
  • Switch to calorie-based units

Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Phase change data

Go To: Top, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

References

Go To: Top, Phase change data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Wu, Xu, et al., 1989
Wu, D.; Xu, G.; Qu, S.; Xue, R.; Gu, C.; Zhang, F., Standard enthalpies of combustion and formation of porphyrin derivatives, Thermochim. Acta, 1989, 154, 233-245. [all data]

Xu, Wu, et al., 1989
Xu, H.; Wu, D.; Qu, S., Thermochemistry of porphyrins. VI. Standard energies of combusiton and standard enthalpies of formation of tetramethoxyphenylporphyrin and tetradimethylaminophenylporphyrin, Wuli Huaxue Xuebao, 1989, 5, 745-749. [all data]

Li, Luo, et al., 1992
Li, L.; Luo, M.; Qu, S.; Huang, S.; Yan, X., Studies on structure and properties of tetraphenylporphyrin and its derivatives. (III). Standard molar enthalpies of sublimation and formation, enthalpies of strain and resonance energy, Gaodeng Xuexiao Huaxue Xuebao, 1992, 13, 509-512. [all data]

Torres, Campos, et al., 2002
Torres, Luis Alfonso; Campos, Myriam; Enriquez, Esteban; Patiño, Rodrigo, The enthalpy of sublimation of 5,10,15,20-tetraphenylporphine and 5,10,15,20-tetrakis(4-methoxyphenyl)porphine, The Journal of Chemical Thermodynamics, 2002, 34, 3, 293-302, https://doi.org/10.1006/jcht.2001.0920 . [all data]

Notes

Go To: Top, Phase change data, References

• Symbols used in this document:
  

  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.