Trimethylamine, compd. with borane (1:1)

• Formula: C₃H₁₂BN
• Molecular weight: 72.945
• IUPAC Standard InChI: InChI=1S/C3H12BN/c1-5(2,3)4/h1-4H3 Copy

  
• IUPAC Standard InChIKey: KQVSXUGMDCAISO-UHFFFAOYSA-N Copy
• CAS Registry Number: 75-22-9
• Chemical structure:
  This structure is also available as a 2d Mol file
• Species with the same structure:
  • Trimethylamine borane
• Other names: Boron, (N,N-dimethylmethanamine)trihydro-, (T-4)-; Trimethylamine borane; (CH3)3NBH3; Borane-trimethylamine complex; Borane-trimethylamine (1:1); Methanamine, N,N-dimethyl-, compd. with borane (1:1); Borane, compd. with N,N-dimethylmethanamine (1:1); Borane, compd. with trimethylamine (1:1); TMAB; NSC 10220; trimethylamine--borane (1:1); Boron, (N,N-dimethylmethanamine)trihydro-
• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • References
  • Notes
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Condensed phase thermochemistry 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: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

Phase change 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Enthalpy of sublimation

Enthalpy of phase transition

Entropy of phase transition

Reaction thermochemistry 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

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

C₃H₁₁BN^- +  =

By formula: C₃H₁₁BN^- + H⁺ = C₃H₁₂BN

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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

De-protonation reactions

C₃H₁₁BN^- +  =

By formula: C₃H₁₁BN^- + H⁺ = C₃H₁₂BN

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

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

Finke, Todd, et al., 1970
Finke, H.L.; Todd, S.S.; Messerly, J.F., Trimethylamineborane and triethylamineborane: low-temperature thermodynamic properties, J. Chem. Thermodynam., 1970, 2, 129-138. [all data]

Finke, Todd, et al., 1970, 2
Finke, H.L.; Todd, S.S.; Messerly, J.F., Trimethylamineborane and Triethylamineborane: Low-temperature Thermodynamic Properties, J. Chem. Thermodyn., 1970, 2, 129. [all data]

Burg and Schlesinger, 1937
Burg, Anton B.; Schlesinger, H.I., Hydrides of Boron. VII. Evidence of the Transitory Existence of Borine (BH ₃ ): Borine Carbonyl and Borine Trimethylammine, J. Am. Chem. Soc., 1937, 59, 5, 780-787, https://doi.org/10.1021/ja01284a002 . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Alton, Brown, et al., 1959
Alton, E.R.; Brown, R.D.; Carter, J.C.; Taylor, R.C., Vapor Pressures of the Methylamine-Boranes and Ammonia-Triborane ¹, J. Am. Chem. Soc., 1959, 81, 14, 3550-3551, https://doi.org/10.1021/ja01523a016 . [all data]

Ren, Workman, et al., 1998
Ren, J.H.; Workman, D.B.; Squires, R.R., Gas-phase negative ion chemistry of Lewis acid-base complexes, J. Am. Chem. Soc., 1998, 120, 40, 10511-10522, https://doi.org/10.1021/ja9804518 . [all data]

Lloyd and Lynaugh, 1972
Lloyd, D.R.; Lynaugh, N., Photoelectron studies of boron compounds. Part 3. Complexes of borane with Lewis bases, J. Chem. Soc. Faraday Trans. 2, 1972, 68, 947. [all data]

Notes

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• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  S°solid,1 bar	Entropy of solid at standard conditions (1 bar)
  Ttriple	Triple point temperature
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔsubH	Enthalpy of sublimation

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