Benzene, 1-bromo-4-ethyl-
- Formula: C8H9Br
- Molecular weight: 185.061
- IUPAC Standard InChIKey: URFPRAHGGBYNPW-UHFFFAOYSA-N
- CAS Registry Number: 1585-07-5
- 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: p-Bromoethylbenzene; p-Ethylbromobenzene; 1-Bromo-4-ethylbenzene; 4-Ethylbromobenzene
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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 477.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 478.22 | K | N/A | Dreisbach and Martin, 1949 | Uncertainty assigned by TRC = 0.07 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 229.68 | K | N/A | Dreisbach and Martin, 1949 | Uncertainty assigned by TRC = 0.05 K; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
11.0 | 362. | N/A | Dykyj, Svoboda, et al., 1999 | Based on data from 347. to 479. K.; AC |
11.8 | 393. | A | Stephenson and Malanowski, 1987 | Based on data from 378. to 533. K. See also Dykyj and Vanko, 1970.; AC |
12.4 | 318. | N/A | Stull, 1947 | Based on data from 303. to 479. K.; AC |
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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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
= C8H9Br
By formula: C8H9Br = C8H9Br
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -0.19 ± 0.0029 | kcal/mol | Eqk | Merdzhanov, Alenin, et al., 1982 | gas phase; Heat of isomerization at 330 K |
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 by: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C7H6Br+ | 10.75 | CH3 | EI | Howe and Williams, 1969 | |
C8H9+ | 10.80 | Br | EI | Howe and Williams, 1969 |
IR Spectrum
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes
Data compiled by: Coblentz Society, Inc.
- SOLUTION (10% CCl4 FOR 2.5-7.5, 10% CS2 FOR 7.5-16 MICRON); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
- SOLUTION (10% IN CCl4 FOR 3800-1333 AND 10% IN CS2 FOR 1333-450 CM-1); DOW KBr FOREPRISM-GRATING; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
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.
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Dreisbach and Martin, 1949
Dreisbach, R.R.; Martin, R.A.,
Physical Data on Some Organic Compounds,
Ind. Eng. Chem., 1949, 41, 2875-8. [all data]
Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R.,
Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [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]
Dykyj and Vanko, 1970
Dykyj, J.; Vanko, A.,
Petrochemica, 1970, 10, 1, 3. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Merdzhanov, Alenin, et al., 1982
Merdzhanov, V.R.; Alenin, V.I.; Nesterova, T.N.; Rozhnov, A.M.,
Study of equilibrium transformation of ethylbromobenzenes,
Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1982, 25, 1047-1049. [all data]
Howe and Williams, 1969
Howe, I.; Williams, D.H.,
Calculation and qualitative predictions of mass spectra. Mono- and paradisubstituted benzenes,
J. Am. Chem. Soc., 1969, 91, 7137. [all data]
Notes
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- Symbols used in this document:
AE Appearance energy Tboil Boiling point Tfus Fusion (melting) point ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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