2,8,9-Trioxa-5-aza-1-borabicyclo[3.3.3]undecane
- Formula: C6H12BNO3
- Molecular weight: 156.975
- IUPAC Standard InChIKey: NKPKVNRBHXOADG-UHFFFAOYSA-N
- CAS Registry Number: 283-56-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Boratran; Boratrane; Boric acid, tris(2-aminoethyl) ester; Boron, ((2,2',2''-nitrilotris(ethanolato))(3-))-; Ethanol, 2,2',2''-nitrilotri-, cyclic ester with boric acid (H3BO3) (1:1); Ethanol, 2,2',2''-nitrilotris-, cyclic ester with boric acid (H3BO3) (1:1); Triethanolamine borate; Atracor T; Ethanol, 2,2',2''-nitrilotri-, cyclic borate; NSC 5220
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Condensed phase thermochemistry data
Go To: Top, Phase change data, Gas phase ion energetics 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 |
---|---|---|---|---|---|
S°solid,1 bar | 183.2 | J/mol*K | N/A | Castle, Stoesser, et al., 1964 | |
S°solid,1 bar | 216.2 | J/mol*K | N/A | Clever, Wong, et al., 1964 |
Constant pressure heat capacity of solid
Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
187.2 | 298.15 | Castle, Stoesser, et al., 1964 | T = 5 to 350 K. |
226.4 | 320. | Clever, Wong, et al., 1964 | T = 320 to 525 K. |
Phase change data
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics 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 |
---|---|---|---|---|---|
Ttriple | 499.4 | K | N/A | Weinstein, Leffler, et al., 1984 | Crystal phase 1 phase; Uncertainty assigned by TRC = 1.5 K; TRC |
Ttriple | 511.86 | K | N/A | Clever, Wong, et al., 1964, 2 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
111.9 ± 0.9 | 418. | C | Vorob'eva, Miroshnichenko, et al., 1984 | AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
8.78 | 499.4 | DSC | Weinstein, Leffler, et al., 1984, 2 | AC |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
4.774 | 466.54 | crystaline, II | crystaline, I | Clever, Wong, et al., 1964 | DH |
24.100 | 511.86 | crystaline, I | liquid | Clever, Wong, et al., 1964 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
10.3 | 466.54 | crystaline, II | crystaline, I | Clever, Wong, et al., 1964 | DH |
47.11 | 511.86 | crystaline, I | liquid | Clever, Wong, et al., 1964 | DH |
Gas phase ion energetics 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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.8 | PE | Cradock, Ebsworth, et al., 1975 | Vertical value |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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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 | Chemical Concepts |
NIST MS number | 186984 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics 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.
Castle, Stoesser, et al., 1964
Castle, P.; Stoesser, R.; Westrum, E.F.,
Jr., Triethanolamine borate. The heat capacity and thermodynamic functions from 5 to 350 K,
J. Phys. Chem., 1964, 68, 49-51. [all data]
Clever, Wong, et al., 1964
Clever, H.L.; Wong, W.-K.; Wulff, C.A.; Westrum, E.F., Jr.,
Heat capacities and thermodynamic properties of globular molecules. III. Transition and fusion of triethanolamine borate,
J. Phys. Chem., 1964, 68, 1967-1969. [all data]
Weinstein, Leffler, et al., 1984
Weinstein, D.I.; Leffler, A.J.; Currie, J.A.,
Phase Transitions in Bicyclic Compounds,
Mol. Cryst. Liq. Cryst., 1984, 104, 95. [all data]
Clever, Wong, et al., 1964, 2
Clever, H.L.; Wong, W.-K.; Wulff, C.A.; Westrum, E.F.,
Heat capacities of globular molecules. III. Transition and fusion of triethanolamine borate,
J. Phys. Chem., 1964, 68, 1967. [all data]
Vorob'eva, Miroshnichenko, et al., 1984
Vorob'eva, V.P.; Miroshnichenko, E.A.; Solomennikova, I.I.; Zelchan, G.I.; Lukevits; Lebedev, Yu.A.,
Thermochemical investigation of trioxaazaboratricycloalkanes,
Russ Chem Bull, 1984, 33, 7, 1372-1376, https://doi.org/10.1007/BF00956509
. [all data]
Weinstein, Leffler, et al., 1984, 2
Weinstein, D.I.; Leffler, A.J.; Currie, J.A.,
Phase Transitions In Bicyclic Compounds,
Molecular Crystals and Liquid Crystals, 1984, 104, 1-2, 95-109, https://doi.org/10.1080/00268948408070401
. [all data]
Cradock, Ebsworth, et al., 1975
Cradock, S.; Ebsworth, E.A.V.; Muiry, I.B.,
Photoelectron spectra and bonding of (N-B) -2,8,9-trioxa-5-aza-1-bora-bicyclo[3.3.3]undecane (boratran) and some 2,8,9-trioxa-5-aza-1-sila- bicyclo[3.3.3]undecanes (silatrans),
J. Chem. Soc. Dalton Trans., 1975, 25. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- 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 ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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