4,4'-di-tert-Butylbiphenyl
- Formula: C20H26
- Molecular weight: 266.4204
- IUPAC Standard InChIKey: CDKCEZNPAYWORX-UHFFFAOYSA-N
- CAS Registry Number: 1625-91-8
- 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: 4,4'-di-t-Butylbiphenyl; 1,1'-Biphenyl, 4,4'-bis(1,1-dimethylethyl)-; 4,4'-di-tert-butyl-1,1'-biphenyl
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Phase change data
Go To: Top, 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 392. | K | N/A | Romadane and Berga, 1958 | Uncertainty assigned by TRC = 6. K; TRC |
Tfus | 390. | K | N/A | Knauf and Adams, 1933 | Uncertainty assigned by TRC = 4. K; TRC |
Tfus | 402. | K | N/A | Chichibabin, Elgazin, et al., 1928 | Uncertainty assigned by TRC = 3. K; TRC |
Tfus | 395. | K | N/A | Schreiner, 1910 | Uncertainty assigned by TRC = 4. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 20.6 ± 0.76 | kcal/mol | S-V | Nti-Gyabaah, Chan, et al., 2009 | AC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 25.53 ± 0.76 | kcal/mol | C | Melkhanova, Pimenova, et al., 2009 | AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
4.78 | 400.8 | DSC | Melkhanova, Pimenova, et al., 2009 | AC |
4.49 | 402. | DSC | Näther, Jeß, et al., 2002 | AC |
Mass spectrum (electron ionization)
Go To: Top, Phase change 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 | NIST Mass Spectrometry Data Center |
NIST MS number | 340916 |
References
Go To: Top, Phase change 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.
Romadane and Berga, 1958
Romadane, I.A.; Berga, S.E.,
Alkylation of Biphenyl with Alcohols in the Presence of Boron Trifluoride- phosphoric Acid Catalyst,
Zh. Obshch. Khim., 1958, 28, 413-7. [all data]
Knauf and Adams, 1933
Knauf; Adams, J.S.,
J. Am. Chem. Soc., 1933, 55, 4704. [all data]
Chichibabin, Elgazin, et al., 1928
Chichibabin, A.E.; Elgazin; Lengold,
Zh. Russ. Fiz.-Khim. O-va., Chast Khim., 1928, 60, 347. [all data]
Schreiner, 1910
Schreiner, E.,
J. Prakt. Chem., 1910, 81, 422. [all data]
Nti-Gyabaah, Chan, et al., 2009
Nti-Gyabaah, J.; Chan, V.; Chiew, Y.C.,
Solubility and limiting activity coefficient of simvastatin in different organic solvents,
Fluid Phase Equilibria, 2009, 280, 1-2, 35-41, https://doi.org/10.1016/j.fluid.2009.03.006
. [all data]
Melkhanova, Pimenova, et al., 2009
Melkhanova, Svetlana V.; Pimenova, Svetlana M.; Chelovskaya, Nelly V.; Miroshnichenko, Eugenii A.; Pashchenko, Larisa L.; Nesterov, Igor A.; Naumkin, P.V.,
Thermochemical studies of 4-tert-butylbiphenyl and 4,4´-di-tert-butylbiphenyl,
The Journal of Chemical Thermodynamics, 2009, 41, 5, 651-653, https://doi.org/10.1016/j.jct.2008.12.015
. [all data]
Näther, Jeß, et al., 2002
Näther, Christian; Jeß, Inke; Havlas, Zdenek; Bolte, Michael; Nagel, Norbert; Nick, Sabine,
Trimorphism of 4,4´-Di(tert.-butyl)-biphenyl: structural, thermodynamic and kinetic aspects,
Solid State Sciences, 2002, 4, 6, 859-871, https://doi.org/10.1016/S1293-2558(02)01324-9
. [all data]
Notes
Go To: Top, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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