Cyclohexane-d12

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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
liquid54.54cal/mol*KN/AMraw and Naas-O'Rourke, 1980 

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
45.10298.15Mraw and Naas-O'Rourke, 1980T = 120 to 323.15 K.
43.939298.Nikolaev, Rabinovich, et al., 1966T = 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
Δvap7.91kcal/molN/ADavis and Schiessler, 1953Based on data from 283. to 353. K.; AC

Enthalpy of phase transition

ΔHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.628186.0crystaline, IIcrystaline, IMraw and Naas-O'Rourke, 1980DH
0.6262277.2crystaline, IliquidMraw and Naas-O'Rourke, 1980DH

Entropy of phase transition

ΔStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
8.750186.0crystaline, IIcrystaline, IMraw and Naas-O'Rourke, 1980DH
2.259277.2crystaline, IliquidMraw and Naas-O'Rourke, 1980DH

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 ± 0.10EQLias, 1982LBLHLM
9.93 ± 0.15EQMautner(Meot-Ner), Sieck, et al., 1981LLK
9.88EQLias, Ausloos, et al., 1976LLK
9.91 ± 0.01SRaymonda, 1972LLK

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

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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 OV25)
a2u 13 CD2 s-str 2108  C 2108 VS gas  ia OV26)
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 OV12)
eu 26 CD2 s-str 2108  C 2108 VS gas  ia OV13)
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

VSVery strong
SStrong
MMedium
WWeak
iaInactive
pPolarized
dpDepolarized
CFCalculated frequency
OVOverlapped by band indicated in parentheses.
A0~1 cm-1 uncertainty
B1~3 cm-1 uncertainty
C3~6 cm-1 uncertainty
E15~30 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

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, References