Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Trimethylamine, compd. with borane (1:1)

Data at NIST subscription sites:

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, Mass spectrum (electron ionization), 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

Quantity Value Units Method Reference Comment
solid,1 bar40.531cal/mol*KN/AFinke, Todd, et al., 1970crystaline, III phase

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
41.530298.15Finke, Todd, et al., 1970crystaline, III phase; T = 12 to 390 K.

Phase change data

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Mass spectrum (electron ionization), 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
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Ttriple368.70KN/AFinke, Todd, et al., 1970, 2Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC

Antoine Equation Parameters

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

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) A B C Reference Comment
136. - 194.34.33304826.224-19.27Burg and Schlesinger, 1937Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Method Reference Comment
13.6311.AStephenson and Malanowski, 1987Based on data from 296. - 367. K. See also Burg and Schlesinger, 1937.; AC
13.6 ± 0.2273. - 363.MEAlton, Brown, et al., 1959AC

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.6059350.1crystaline, IIIcrystaline, IIFinke, Todd, et al., 1970DH
0.142360.4crystaline, IIcrystaline, IFinke, Todd, et al., 1970DH
1.1824368.70crystaline, IliquidFinke, Todd, et al., 1970DH

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
1.73350.1crystaline, IIIcrystaline, IIFinke, Todd, et al., 1970DH
3.939360.4crystaline, IIcrystaline, IFinke, Todd, et al., 1970DH
3.207368.70crystaline, IliquidFinke, Todd, et al., 1970DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Reaction thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), 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: 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- + Hydrogen cation = Trimethylamine, compd. with borane (1:1)

By formula: C3H11BN- + H+ = C3H12BN

Quantity Value Units Method Reference Comment
Deltar393.1 ± 2.1kcal/molG+TSRen, Workman, et al., 1998gas phase; Acid heat est. from B-N bond strength of "35-40 kcal/mol" in Ren, Workman, et al., 1998
Quantity Value Units Method Reference Comment
Deltar384.0 ± 2.0kcal/molIMRBRen, Workman, et al., 1998gas phase; Acid heat est. from B-N bond strength of "35-40 kcal/mol" in Ren, Workman, et al., 1998

Mass spectrum (electron ionization)

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

Mass spectrum
For Zoom
1.) Enter the desired X axis range (e.g., 100, 200)
2.) Check here for automatic Y scaling
3.) Press here to zoom

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

View spectrum image in SVG format.

Download spectrum in JCAMP-DX format.

Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Japan AIST/NIMC Database- Spectrum MS-NW-8856
NIST MS number 234921

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), Notes

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]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), References