Benzene, 1,1',1'',1'''-(1,2-ethanediylidene)tetrakis-
- Formula: C26H22
- Molecular weight: 334.4529
- IUPAC Standard InChIKey: RUGHUJBHQWALKM-UHFFFAOYSA-N
- CAS Registry Number: 632-50-8
- 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: Ethane, 1,1,2,2-tetraphenyl-; α,α,β,β-Tetraphenylethane; sym-Tetraphenylethane; Bibenzhydryl; 1,1,2,2-Tetraphenylethane
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
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, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | 52.7 ± 0.8 | kcal/mol | Ccb | Beckhaus, Dogan, et al., 1990 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -3249.5 ± 0.8 | kcal/mol | Ccb | Beckhaus, Dogan, et al., 1990 | Corresponding ΔfHºsolid = 52.7 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°solid | -3248.42 ± 0.31 | kcal/mol | Ccb | Coops, Mulder, et al., 1953 | Reanalyzed by Cox and Pilcher, 1970, Original value = -3249.3 ± 0.7 kcal/mol; See Coops, Mulder, et al., 1946; Corresponding ΔfHºsolid = 51.63 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
95.51 | 298.5 | Smith and Andrews, 1931 | T = 102 to 346 K. Value is unsmoothed experimental datum.; DH |
IR Spectrum
Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), UV/Visible spectrum, 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
Gas Phase Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
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 Standard Reference Data Program Collection (C) 2018 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 |
State | gas |
Instrument | HP-GC/MS/IRD |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, UV/Visible spectrum, 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.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
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-IW-6954 |
NIST MS number | 240878 |
UV/Visible spectrum
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, 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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina
Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
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.
Source | Kortum and Dreesen, 1951 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 5762 |
Instrument | 110C Fuess spectrograph, possible Zeiss spectrograph |
Melting point | 214.5 |
Boiling point | 360 |
References
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Beckhaus, Dogan, et al., 1990
Beckhaus, H.D.; Dogan, B.; Schaetzer, J.; Hellmann, S.; Ruchardt, C.,
Thermische stabilitat und bildungsenthalpie von 1,2,2,2- und 1,1,1,2- tetraphenylethan. - Die stabilisierungsenergien von benzhydryl- und triphenylmethyl-radikalen,
Chem. Ber., 1990, 123, 137-144. [all data]
Coops, Mulder, et al., 1953
Coops, J.; Mulder, D.; Dienske, J.W.; Smittenberg, J.,
Thermochemical investigations on arylethanes I. Heats of combustion of phenylethanes.,
Rec. Trav. Chim. Pays/Bas, 1953, 72, 785. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Coops, Mulder, et al., 1946
Coops, J.; Mulder, D.; Dienske, J.W.; Smittenberg, J.,
The heats of combustion of a number of hydrocarbons,
Rec. Trav. Chim. Pays/Bas, 1946, 65, 128. [all data]
Smith and Andrews, 1931
Smith, R.H.; Andrews, D.H.,
Thermal energy studies. I. Phenyl derivatives of methane,
ethane and some related compounds. J. Am. Chem. Soc., 1931, 53, 3644-3660. [all data]
Kortum and Dreesen, 1951
Kortum, G.; Dreesen, G.,
Uber die konstitutions-abhangigkeit der schwingungsstruktur im absoprtionsspektrum von aromatischen kohlenwasserstoffen,
Chem. Ber., 1951, 84, 2, 182-203. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - 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.