Benzene
- Formula: C6H6
- Molecular weight: 78.1118
- IUPAC Standard InChIKey: UHOVQNZJYSORNB-UHFFFAOYSA-N
- CAS Registry Number: 71-43-2
- 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. - Isotopologues:
- Other names: [6]Annulene; Benzol; Benzole; Coal naphtha; Cyclohexatriene; Phenyl hydride; Pyrobenzol; Pyrobenzole; Benzolene; Bicarburet of hydrogen; Carbon oil; Mineral naphtha; Motor benzol; Benzeen; Benzen; Benzin; Benzine; Benzolo; Fenzen; NCI-C55276; Phene; Rcra waste number U019; UN 1114; NSC 67315; 1,3,5-Cyclohexatriene
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IR Spectrum
Go To: Top, UV/Visible spectrum, Vibrational and/or electronic energy levels, References, Notes
Data compiled by: Coblentz Society, Inc.
- GAS (70 mmHg, N2 ADDED, TOTAL PRESSURE 600 mmHg); DOW KBr FOREPRISM-GRATING; DIGITIZED BY COBLENTZ SOCIETY (BATCH II) FROM HARD COPY; 2 cm-1 resolution
- SOLUTION (10% IN CCl4 FOR 3800-1300, 10% IN CS2 FOR 1300-625, AND 10% IN CCl4 FOR 625-240 CM-1) VS. SOLVENT; PERKIN-ELMER 521 (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
Data compiled by: Pamela M. Chu, Franklin R. Guenther, George C. Rhoderick, and Walter J. Lafferty
- gas; IFS66V (Bruker); 3-Term B-H Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Boxcar Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Happ Genzel Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); NB Strong Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Triangular Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution
UV/Visible spectrum
Go To: Top, IR Spectrum, Vibrational and/or electronic energy levels, 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
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Additional Data
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Source | Romand and Vodar, 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. 118 |
Instrument | n.i.g. |
Melting point | 5.5 |
Boiling point | 80.0 |
Vibrational and/or electronic energy levels
Go To: Top, 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: Takehiko Shimanouchi
Symmetry: D6h Symmetry Number σ = 12
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
a1g | 1 | CH str | 3062 | C | ia | 3061.9 VS p | liq. | |||
a1g | 2 | Ring str | 992 | C | ia | 991.6 VS p | liq. | |||
a2g | 3 | CH bend | 1326 | E | ia | 1326 VW | liq. | |||
a2u | 4 | CH bend | 673 | B | 673 S | gas | ia | |||
b1u | 5 | CH str | 3068 | C | 3067.57 VW | sln. | ia | |||
b1u | 6 | Ring deform | 1010 | C | 1010 W | sln. | ia | |||
b2g | 7 | CH bend | 995 | E | ia | ia | OC(ν19+ν7,ν20+ν7) | |||
b2g | 8 | Ring deform | 703 | E | ia | ia | OC(ν19+ν8, ν20+ν8) | |||
b2u | 9 | Ring str | 1310 | C | 1310 W | liq. | ia | |||
b2u | 10 | CH bend | 1150 | C | 1150 W | liq. | ia | |||
e1g | 11 | CH bend | 849 | C | ia | 848.9 M dp | liq. | |||
e1u | 12 | CH str | 3063 | E | 3080 S | liq. | ia | FR(ν13+ν16) | ||
e1u | 12 | CH str | 3063 | E | 3030 S | liq. | ia | FR(ν13+ν16) | ||
e1u | 13 | Ring str + deform | 1486 | B | 1486 S | gas | ia | |||
e1u | 14 | CH bend | 1038 | B | 1038 S | gas | ia | |||
e2g | 15 | CH str | 3047 | C | ia | 3046.8 S dp | liq. | |||
e2g | 16 | Ring str | 1596 | E | ia | 1606.4 S dp | liq. | FR(ν2+ν18) | ||
e2g | 16 | Ring str | 1596 | E | ia | 1584.6 S dp | liq. | FR(ν2+ν18) | ||
e2g | 17 | CH bend | 1178 | C | ia | 1178.0 S dp | liq. | |||
e2g | 18 | Ring deform | 606 | C | ia | 605.6 S dp | liq. | |||
e2u | 19 | CH bend | 975 | C | 975 W | liq. | ia | |||
e2u | 20 | Ring deform | 410 | C | 417.7 S | sln. | ia | |||
e2u | 20 | Ring deform | 410 | C | 403.0 S | sln. | ia | |||
Source: Shimanouchi, 1972
Notes
VS | Very strong |
S | Strong |
M | Medium |
W | Weak |
VW | Very weak |
ia | Inactive |
p | Polarized |
dp | Depolarized |
FR | Fermi resonance with an overtone or a combination tone indicated in the parentheses. |
OC | Frequency estimated from an overtone or a combination tone indicated in the parentheses. |
B | 1~3 cm-1 uncertainty |
C | 3~6 cm-1 uncertainty |
E | 15~30 cm-1 uncertainty |
References
Go To: Top, IR Spectrum, UV/Visible spectrum, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Romand and Vodar, 1951
Romand, J.; Vodar, B.,
Spectres d'absorption du benzene a l'etat vapeur et a l'etat condense dans l'ultraviolet lointain,
Compt. Rend., 1951, 233, 930-932. [all data]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]
Notes
Go To: Top, IR Spectrum, UV/Visible spectrum, Vibrational and/or electronic energy levels, References
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