Propanal, 2,2-dimethyl-

• Formula: C₅H₁₀O
• Molecular weight: 86.1323
• IUPAC Standard InChI: InChI=1S/C5H10O/c1-5(2,3)4-6/h4H,1-3H3 Copy

  
• IUPAC Standard InChIKey: FJJYHTVHBVXEEQ-UHFFFAOYSA-N Copy
• CAS Registry Number: 630-19-3
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Pivalaldehyde; α,α-Dimethylpropionaldehyde; Neopentanal; Pivalic aldehyde; Trimethylacetaldehyde; 2,2-Dimethylpropanal; 2,2-Dimethylpropionaldehyde; tert-C4H9CHO; Pivaldehyde; NSC 22043; tert-Valeraldehyde
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
• 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.

Condensed phase thermochemistry data

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

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

Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

Phase change data

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy of vaporization

Enthalpy of fusion

Entropy of fusion

Temperature of phase transition

Enthalpy of phase transition

Entropy of phase transition

Reaction thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Ion clustering data, 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

 +  = ( • )

By formula: F^- + C₅H₁₀O = (F^- • C₅H₁₀O)

 +  = ( • )

By formula: Cl^- + C₅H₁₀O = (Cl^- • C₅H₁₀O)

C₅H₉O^- +  =

By formula: C₅H₉O^- + H⁺ = C₅H₁₀O

(CAS Reg. No. 55091-58-2 • 4294967295) +  = CAS Reg. No. 55091-58-2

By formula: (CAS Reg. No. 55091-58-2 • 4294967295C₅H₁₀O) + C₅H₁₀O = CAS Reg. No. 55091-58-2

 +  =  + 2

By formula: C₇H₁₆O₂ + H₂O = C₅H₁₀O + 2CH₄O

Gas phase ion energetics data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Ion clustering data, References, Notes

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

Data evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C₅H₁₀O⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

C₅H₉O^- +  =

By formula: C₅H₉O^- + H⁺ = C₅H₁₀O

Ion clustering data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

 +  = ( • )

By formula: Cl^- + C₅H₁₀O = (Cl^- • C₅H₁₀O)

 +  = ( • )

By formula: F^- + C₅H₁₀O = (F^- • C₅H₁₀O)

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes

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

Korkhov, D'yakova, et al., 1983
Korkhov, A.D.; D'yakova, G.N.; Vasil'ev, I.A., Heat capacity of pivalaldehyde and valeraldehyde, Fiz.-khim. Aspekty Razrab. Neftekhim. Protsessov, 1983, M. [all data]

White and Perrott, 1988
White, M.A.; Perrott, A., The thermodynamics of orientational disorder in a molecular solid: (CH₃)₃CCHO, Can. J. Chem., 1988, 66, 729-733. [all data]

Anonymous, 1957
Anonymous, R., , Am. Pet. Inst. Res. Proj. 6, Carnegie-Mellon Univ., 1957. [all data]

Meunier, 1936
Meunier, V.C., , Ph.D. Thesis, Penn. State Univ., Univ. Park, 1936. [all data]

Pringsheim and Leibowitz, 1923
Pringsheim; Leibowitz, Chem. Ber., 1923, 56, 2034. [all data]

Richard, 1910
Richard, A., Ann. Chim. Phys., 1910, 21, 323. [all data]

Sommelet, 1893
Sommelet, M., Ann. Chim. Phys., 1893, 29, 321. [all data]

White and Perrott, 1988, 2
White, M.A.; Perrott, A., The thermodynamics of orientational disorder in a molecular solid: (CH, Can. J. Chem., 1988, 66, 4, 729, https://doi.org/10.1139/v88-127 . [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Varughese and Sommerfeld, 1989
Varughese, Babu; Sommerfeld, Jude T., Vapor pressure of pivalaldehyde, J. Chem. Eng. Data, 1989, 34, 1, 25-26, https://doi.org/10.1021/je00055a008 . [all data]

Larson and McMahon, 1983
Larson, J.W.; McMahon, T.B., Strong hydrogen bonding in gas-phase anions. An ion cyclotron resonance determination of fluoride binding energetics to bronsted acids from gas-phase fluoride exchange equilibria measurements, J. Am. Chem. Soc., 1983, 105, 2944. [all data]

Arshadi, Yamdagni, et al., 1970
Arshadi, M.; Yamdagni, R.; Kebarle, P., Hydration of Halide Negative Ions in the Gas Phase. II. Comparison of Hydration Energies for the Alkali Positive and Halide Negative Ions, J. Phys. Chem., 1970, 74, 7, 1475, https://doi.org/10.1021/j100702a014 . [all data]

Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. An experimental investigation of the interaction between chloride ion and bronsted acids from ICR chloride exchange equilibria, J. Am. Chem. Soc., 1984, 106, 517. [all data]

Larson and McMahon, 1984, 2
Larson, J.W.; McMahon, T.B., Gas phase negative ion chemistry of alkylchloroformates, Can. J. Chem., 1984, 62, 675. [all data]

Noest and Nibbering, 1980
Noest, A.J.; Nibbering, N.M.M., Homoconjugation vs. charge dipole stabilization interaction effects in the stabilization of carbanions in the gas phase, J. Am. Chem. Soc., 1980, 102, 6427. [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Wiberg and Squires, 1981
Wiberg, K.B.; Squires, R.R., Thermochemical studies of carbonyl reactions. 2. Steric effects in acetal and ketal hydrolysis, J. Am. Chem. Soc., 1981, 103, 4473-4478. [all data]

Desfrancois, Abdoul-Carime, et al., 1994
Desfrancois, C.; Abdoul-Carime, H.; Khelifa, N.; Schermann, J.P., Fork 1/r to 1/r2 Potentials: Electron Exchange between Rydberg Atoms and Polar Molecules, Phys. Rev. Lett., 1994, 73, 18, 2436, https://doi.org/10.1103/PhysRevLett.73.2436 . [all data]

Traeger, 1985
Traeger, J.C., Heat of formation for the propanoyl cation by photoionization mass spectrometry, Org. Mass Spectrom., 1985, 20, 223. [all data]

Hernandez, Masclet, et al., 1977
Hernandez, R.; Masclet, P.; Mouvier, G., Spectroscopie de photoelectrons d'aldehydes et de cetones aliphatiques, J. Electron Spectrosc. Relat. Phenom., 1977, 10, 333. [all data]

Cocksey, Eland, et al., 1971
Cocksey, B.J.; Eland, J.H.D.; Danby, C.J., The effect of alkyl substitution on ionisation potential, J. Chem. Soc., 1971, (B), 790. [all data]

Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References

• Symbols used in this document:
  

  AE	Appearance energy
  Cp,liquid	Constant pressure heat capacity of liquid
  EA	Electron affinity
  IE (evaluated)	Recommended ionization energy
  S°liquid	Entropy of liquid at standard conditions
  Tboil	Boiling point
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  Ttrs	Temperature of phase transition
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions
  ΔvapH	Enthalpy of vaporization

• 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.