C9H8O4 - The NIST WebBook

C9H8O4

• Formula: C9H8O4
• Molecular weight: 180.1574
• CAS Registry Number: 501-16-6
• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
• Options:
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Gas phase ion energetics data

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

Data compiled by: John E. Bartmess

De-protonation reactions

C9H7O4- + = C9H8O4

By formula: C9H7O4- + H+ = C9H8O4

Quantity	Value	Units	Method	Reference	Comment
ΔrH°	1353. ± 9.6	kJ/mol	G+TS	Guerrero, Baer, et al., 2013	gas phase
Quantity	Value	Units	Method	Reference	Comment
ΔrG°	1328. ± 9.2	kJ/mol	CIDC	Guerrero, Baer, et al., 2013	gas phase

References

Go To: Top, Gas phase ion energetics data, Notes

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

Guerrero, Baer, et al., 2013 Guerrero, A.; Baer, T.; Chana, A.; Gonzalez, J.; Davalos, J.Z., Gas Phase Acidity Measurement of Local Acidic Groups in Multifunctional Species: Controlling the Binding Sites in Hydroxycinnamic Acids, J. Am. Chem. Soc., 2013, 135, 26, 9681-9690, https://doi.org/10.1021/ja400571r . [all data]

Notes

Go To: Top, Gas phase ion energetics data, References

• Symbols used in this document:

  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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