Cyclohexane-d12
- Formula: C6D12
- Molecular weight: 96.2334
- IUPAC Standard InChIKey: XDTMQSROBMDMFD-LBTWDOQPSA-N
- CAS Registry Number: 1735-17-7
- 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. - Species with the same structure:
- Isotopologues:
- Other names: [2H12]cyclohexane
- Information on this page:
- Other data available:
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Condensed phase 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: Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°liquid | 54.54 | cal/mol*K | N/A | Mraw and Naas-O'Rourke, 1980 |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
45.10 | 298.15 | Mraw and Naas-O'Rourke, 1980 | T = 120 to 323.15 K. |
43.939 | 298. | Nikolaev, Rabinovich, et al., 1966 | T = 10 to 50°C. |
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:
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 7.91 | kcal/mol | N/A | Davis and Schiessler, 1953 | Based on data from 283. to 353. K.; AC |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
1.628 | 186.0 | crystaline, II | crystaline, I | Mraw and Naas-O'Rourke, 1980 | DH |
0.6262 | 277.2 | crystaline, I | liquid | Mraw and Naas-O'Rourke, 1980 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
8.750 | 186.0 | crystaline, II | crystaline, I | Mraw and Naas-O'Rourke, 1980 | DH |
2.259 | 277.2 | crystaline, I | liquid | Mraw and Naas-O'Rourke, 1980 | DH |
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 as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.90 ± 0.10 | EQ | Lias, 1982 | LBLHLM |
9.93 ± 0.15 | EQ | Mautner(Meot-Ner), Sieck, et al., 1981 | LLK |
9.88 | EQ | Lias, Ausloos, et al., 1976 | LLK |
9.91 ± 0.01 | S | Raymonda, 1972 | LLK |
Mass spectrum (electron ionization)
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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: 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, 1990. |
NIST MS number | 118596 |
Vibrational and/or electronic energy levels
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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: Takehiko Shimanouchi
Symmetry: D3d Symmetry Number σ = 6
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
a1g | 1 | CD2 a-str | 2152 | C | ia | 2152 VS p | liq. | |||
a1g | 2 | CD2 s-str | 2082 | C | ia | 2082 VS p | liq. | |||
a1g | 3 | CD2 scis | 1117 | C | ia | 1117 M p | liq. | |||
a1g | 4 | CD2 rock | 1012 | C | ia | 1012 W p | liq. | |||
a1g | 5 | CC str | 723 | C | ia | 723 VS p | liq. | |||
a1g | 6 | CCC deform + CC torsion | 298 | C | ia | 298 W p | liq. | |||
a1u | 7 | CD2 twist | 864 | E | ia | ia | CF | |||
a1u | 8 | CD2 wag | 842 | E | ia | ia | CF | |||
a1u | 9 | CC str + CC torsion | 1187 | E | ia | ia | CF | |||
a2g | 10 | CD2 wag | 1126 | E | ia | ia | CF | |||
a2g | 11 | CD2 twist | 778 | E | ia | ia | CF | |||
a2u | 12 | CD2 a-str | 2206 | C | 2206 VS | gas | ia | OV(ν25) | ||
a2u | 13 | CD2 s-str | 2108 | C | 2108 VS | gas | ia | OV(ν26) | ||
a2u | 14 | CD2 scis | 1091 | B | 1091 VS | gas | ia | |||
a2u | 15 | CD2 rock | 917 | A | 917 VS | gas | ia | |||
a2u | 16 | CCC deform | 395 | B | 395 S | gas | ia | |||
eg | 17 | CD2 a-str | 2199 | C | ia | 2199 VS dp | liq. | |||
eg | 18 | CD s-str | 2104 | C | ia | 2104 VS dp | liq. | |||
eg | 19 | CD2 scis | 1071 | C | ia | 1071 M dp | liq. | |||
eg | 20 | CD2 wag | 1212 | C | ia | 1212 M dp | liq. | |||
eg | 21 | CD2 twist | 937 | C | ia | 937 S dp | liq. | |||
eg | 22 | CC str | 795 | C | ia | 795 S dp | liq. | |||
eg | 23 | CD2 rock | 637 | C | ia | 637 W dp | liq. | |||
eg | 24 | CCC deform + CC torsion | 373 | C | ia | 373 M dp | liq. | |||
eu | 25 | CD2 a-str | 2206 | C | 2206 VS | gas | ia | OV(ν12) | ||
eu | 26 | CD2 s-str | 2108 | C | 2108 VS | gas | ia | OV(ν13) | ||
eu | 27 | CD2 scis | 1069 | C | 1069 M | liq. | ia | |||
eu | 28 | CD2 wag | 1165 | A | 1165 VS | gas | ia | |||
eu | 29 | CD2 twist | 991 | A | 991 VS | gas | ia | |||
eu | 30 | CD2 rock | 687 | B | 687 S | gas | ia | |||
eu | 31 | CC str | 720 | A | 720 S | gas | ia | |||
eu | 32 | CCC deform + CC torsion | 203 | C | ia | CF | ||||
Source: Shimanouchi, 1972
Notes
VS | Very strong |
S | Strong |
M | Medium |
W | Weak |
ia | Inactive |
p | Polarized |
dp | Depolarized |
CF | Calculated frequency |
OV | Overlapped by band indicated in parentheses. |
A | 0~1 cm-1 uncertainty |
B | 1~3 cm-1 uncertainty |
C | 3~6 cm-1 uncertainty |
E | 15~30 cm-1 uncertainty |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), 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.
Mraw and Naas-O'Rourke, 1980
Mraw, S.C.; Naas-O'Rourke, D.F.,
Thermodyanamic properties of cyclohexane-d12: low-temperature heat capacity and enthalpies of transition and fusion from accurate differential scanning calorimetry, and the entropy from spectroscopic results,
J. Chem. Thermodynam., 1980, 12, 691-704. [all data]
Nikolaev, Rabinovich, et al., 1966
Nikolaev, P.N.; Rabinovich, I.B.; Gal'perin, V.A.; Tsvetkov, V.G.,
Isotopic effect on the specific heat and compressibility of deuterocyclohexane,
Zhur. Fiz. Khim., 1966, 40, 1091-1097. [all data]
Davis and Schiessler, 1953
Davis, Raymond T.; Schiessler, Robert W.,
Vapor Pressures of Perdeuterobenzene and of Perdeuterocyclohex ane,
J. Phys. Chem., 1953, 57, 9, 966-968, https://doi.org/10.1021/j150510a027
. [all data]
Lias, 1982
Lias, S.G.,
Thermochemical information from ion-molecule rate constants,
Ion Cyclotron Reson. Spectrom. 1982, 1982, 409. [all data]
Mautner(Meot-Ner), Sieck, et al., 1981
Mautner(Meot-Ner), M.; Sieck, L.W.; Ausloos, P.,
Ionization of normal alkanes: Enthalpy, entropy, structural, and isotope effects,
J. Am. Chem. Soc., 1981, 103, 5342. [all data]
Lias, Ausloos, et al., 1976
Lias, S.G.; Ausloos, P.; Horvath, Z.,
Charge transfer reactions in alkane and cycloalkane systems. Estimated ionization potentials,
Int. J. Chem. Kinet., 1976, 8, 725. [all data]
Raymonda, 1972
Raymonda, J.W.,
Rydberg states in cyclic alkanes,
J. Chem. Phys., 1972, 56, 3912. [all data]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]
Notes
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- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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