Cyclooctane
- Formula: C8H16
- Molecular weight: 112.2126
- IUPAC Standard InChIKey: WJTCGQSWYFHTAC-UHFFFAOYSA-N
- CAS Registry Number: 292-64-8
- 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: Octamethylene
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- 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.
Gas phase thermochemistry data
Go To: Top, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, 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:
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -30.14 ± 0.38 | kcal/mol | N/A | Spitzer and Huffman, 1947 | Value computed using ΔfHliquid° value of -169.4±1.6 kj/mol from Spitzer and Huffman, 1947 and ΔvapH° value of 43.35±0.21 kj/mol from missing citation.; DRB |
Quantity | Value | Units | Method | Reference | Comment |
S°gas | 87.66 ± 0.30 | cal/mol*K | N/A | Finke H.L., 1956 | GT |
Constant pressure heat capacity of gas
Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.230 | 50. | Dorofeeva O.V., 1986 | S(T) values calculated by [ Stull D.R., 1969] are in good agreement with those selected here; however, the discrepancy in Cp(298.15 K) amounts to 6.2 J/mol*K. S(T) values calculated by molecular mechanics method [ Chang S., 1970] are about 13 J/mol*K less than recommended ones; discrepancies in Cp(T) values amount to 1-2 J/mol*K.; GT |
15.48 | 100. | ||
19.88 | 150. | ||
23.90 | 200. | ||
31.804 | 273.15 | ||
34.9 ± 1.2 | 298.15 | ||
35.179 | 300. | ||
48.317 | 400. | ||
60.485 | 500. | ||
70.899 | 600. | ||
79.680 | 700. | ||
87.108 | 800. | ||
93.427 | 900. | ||
98.822 | 1000. | ||
103.44 | 1100. | ||
107.40 | 1200. | ||
110.81 | 1300. | ||
113.74 | 1400. | ||
116.28 | 1500. |
IR Spectrum
Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compiled by: Coblentz Society, Inc.
- LIQUID; Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
- SOLUTION (10% CCl4 FOR 4000-1330, 10% CS2 FOR 1330-450 CM-1) VS SOLVENT; CARY 90 (GRATING); 2 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, IR Spectrum, Gas Chromatography, 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-NW- 826 |
NIST MS number | 228916 |
Gas Chromatography
Go To: Top, Gas 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | C78, Branched paraffin | 130. | 965.8 | Dallos, Sisak, et al., 2000 | He; Column length: 3.3 m |
Packed | C78, Branched paraffin | 130. | 963.9 | Reddy, Dutoit, et al., 1992 | Chromosorb G HP; Column length: 3.3 m |
Capillary | HP-1 | 60. | 911. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | HP-1 | 60. | 912. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | HP-1 | 100. | 928. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Capillary | HP-1 | 100. | 929. | Zhang, Li, et al., 1992 | N2; Column length: 25. m; Column diameter: 0.20 mm |
Packed | Apolane | 130. | 965. | Dutoit, 1991 | Column length: 3.7 m |
Capillary | OV-1 | 100. | 927.2 | Engewald, Billing, et al., 1987 | Column length: 50. m; Column diameter: 0.3 mm |
Capillary | SE-30 | 130. | 941. | Bredael, 1982 | Column length: 100. m; Column diameter: 0.5 mm |
Capillary | SE-30 | 80. | 920. | Bredael, 1982 | Column length: 100. m; Column diameter: 0.5 mm |
Capillary | Squalane | 86. | 928.5 | Nabivach and Kirilenko, 1979 | N2; Column length: 50. m |
Capillary | Squalane | 42.5 | 908. | Engewald, Epsch, et al., 1974 | N2; Column length: 100. m; Column diameter: 0.23 mm |
Capillary | Squalane | 80. | 925. | Engewald, Epsch, et al., 1974 | N2; Column length: 100. m; Column diameter: 0.23 mm |
Capillary | Squalane | 100. | 933. | Besson and Gäumann, 1973 | Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Apiezon L | 100. | 957. | Besson and Gäumann, 1973 | Column length: 50. m; Column diameter: 0.25 mm |
Capillary | Squalane | 120. | 927. | Agrawal, Tesarík, et al., 1972 | N2, Celite 545; Column length: 50. m; Column diameter: 0.3 mm |
Capillary | Squalane | 86. | 925. | Agrawal, Tesarík, et al., 1972 | N2, Celite 545; Column length: 50. m; Column diameter: 0.3 mm |
Capillary | Vacuum Grease Oil (VM-4) | 35. | 916. | Sidorov, Petrova, et al., 1972 | |
Capillary | Vacuum Grease Oil (VM-4) | 45. | 920. | Sidorov, Petrova, et al., 1972 | |
Capillary | Vacuum Grease Oil (VM-4) | 50. | 923. | Sidorov, Petrova, et al., 1972 | |
Capillary | Vacuum Grease Oil (VM-4) | 58. | 926. | Sidorov, Petrova, et al., 1972 | |
Capillary | Vacuum Grease Oil (VM-4) | 68. | 930. | Sidorov, Petrova, et al., 1972 | |
Packed | Squalane | 49. | 912. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 67. | 920. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 86. | 928. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Capillary | Squalane | 100. | 934. | Schomburg, 1967 | Ar; Column length: 100. m |
Capillary | Squalane | 120. | 946. | Schomburg, 1966 | |
Capillary | Squalane | 70. | 920. | Schomburg, 1966 | |
Capillary | Squalane | 80. | 925. | Schomburg, 1966 | |
Packed | Squalane | 150. | 946. | Schomburg, 1964 |
Kovats' RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Apiezon L | 948. | Louis, 1971 | N2, 1. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tstart: 60. C |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Petrocol DH | 911. | White, Hackett, et al., 1992 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Packed | SE-30 | 932. | Buchman, Cao, et al., 1984 | He, Chromosorb AW, 40. C @ 10. min, 10. K/min, 210. C @ 30. min; Column length: 3.05 m |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-1 | 910. | Peng, 2000 | 15. m/0.53 mm/1. μm, He; Program: 40C(3min) => 8C/min => 200(1min) => 5C/min => 300C(25min) |
Packed | SE-30 | 932. | Peng, Ding, et al., 1988 | Supelcoport; Chromosorb; Column length: 3.05 m; Program: 40C(5min) => 10C/min => 200C or 250C (60min) |
Packed | SE-30 | 932. | Peng, Ding, et al., 1988 | Supelcoport; Chromosorb; Column length: 3.05 m; Program: 40C(5min) => 10C/min => 200C or 250C (60min) |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 1036. | Peng, 2000 | 15. m/0.53 mm/1. μm, He, 40. C @ 3. min, 5. K/min, 220. C @ 30. min |
Capillary | HP-Wax | 1023. | Peng, 2000 | 15. m/0.53 mm/1. μm, He, 40. C @ 3. min, 5. K/min, 220. C @ 30. min |
Packed | Carbowax 20M | 1043. | Buchman, Cao, et al., 1984 | He, Supelcoport, 40. C @ 10. min, 10. K/min, 210. C @ 30. min; Column length: 3.05 m |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Petrocol DH | 918. | Supelco, 2012 | 100. m/0.25 mm/0.50 μm, Helium, 20. C @ 15. min, 15. K/min, 220. C @ 30. min |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Squalane | 920. | Chen, 2008 | Program: not specified |
Packed | SE-30 | 947. | Robinson and Odell, 1971 | N2, Chromosorb W; Column length: 6.1 m; Program: 50C910min) => 20C/min => 90(6min) => 10C/min => 150C(hold) |
Packed | Squalane | 927. | Robinson and Odell, 1971 | N2, Embacel; Column length: 3.0 m; Program: 25C(5min) => 2C/min => 35 => 4C/min => 95C(hold) |
Packed | SE-30 | 947. | Robinson and Odell, 1971, 2 | Chrom W; Column length: 6.1 m; Program: 50C(10min) => 20C/min(2min) => 90C(6min) => 10C/min(6min) => (hold at 150C) |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 1014. | Peng, Yang, et al., 1991 | Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spitzer and Huffman, 1947
Spitzer, R.; Huffman, H.M.,
The heats of combustion of cyclopentane, cyclohexane, cycloheptane and cyclooctane,
J. Am. Chem. Soc., 1947, 69, 211-213. [all data]
Finke H.L., 1956
Finke H.L.,
Cycloheptane, cyclooctane, and 1,3,5-cycloheptatriene. Low-temperature thermal properties, vapor pressure, and derived chemical thermodynamic properties,
J. Am. Chem. Soc., 1956, 78, 5469-5476. [all data]
Dorofeeva O.V., 1986
Dorofeeva O.V.,
Thermodynamic properties of twenty-one monocyclic hydrocarbons,
J. Phys. Chem. Ref. Data, 1986, 15, 437-464. [all data]
Stull D.R., 1969
Stull D.R., Jr.,
The Chemical Thermodynamics of Organic Compounds. Wiley, New York, 1969. [all data]
Chang S., 1970
Chang S.,
The heats of combustion and strain energies of bicyclo[n.m.0]alkanes,
J. Am. Chem. Soc., 1970, 92, 3109-3118. [all data]
Dallos, Sisak, et al., 2000
Dallos, A.; Sisak, A.; Kulcsár, Z.; Kováts, E.,
Pair-wise interactions by gas chromatography VII. Interaction free enthalpies of solutes with secondary alcohol groups,
J. Chromatogr. A, 2000, 904, 2, 211-242, https://doi.org/10.1016/S0021-9673(00)00908-0
. [all data]
Reddy, Dutoit, et al., 1992
Reddy, K.S.; Dutoit, J.-Cl.; Kovats, E. sz.,
Pair-wise interactions by gas chromatography. I. Interaction free enthalpies of solutes with non-associated primary alcohol groups,
J. Chromatogr., 1992, 609, 1-2, 229-259, https://doi.org/10.1016/0021-9673(92)80167-S
. [all data]
Zhang, Li, et al., 1992
Zhang, M.J.; Li, S.D.; Chen, B.J.,
Compositional studies of high-temperature coal tar by GC/FTIR analysis of light oil fractions,
Chromatographia, 1992, 33, 3/4, 138-146, https://doi.org/10.1007/BF02275894
. [all data]
Dutoit, 1991
Dutoit, J.,
Gas chromatographic retention behaviour of some solutes on structurally similar polar and non-polar stationary phases,
J. Chromatogr., 1991, 555, 1-2, 191-204, https://doi.org/10.1016/S0021-9673(01)87179-X
. [all data]
Engewald, Billing, et al., 1987
Engewald, W.; Billing, U.; Welsch, T.; Haufe, G.,
Structure-retention correlations of hydrocarbons in gas-liquid and gas-solid chromatography. Cycloalkenes and cycloalkadienes,
Chromatographia, 1987, 23, 8, 590-594, https://doi.org/10.1007/BF02324870
. [all data]
Bredael, 1982
Bredael, P.,
Retention indices of hydrocarbons on SE-30,
J. Hi. Res. Chromatogr. Chromatogr. Comm., 1982, 5, 6, 325-328, https://doi.org/10.1002/jhrc.1240050610
. [all data]
Nabivach and Kirilenko, 1979
Nabivach, V.M.; Kirilenko, A.V.,
The use of retention indices for identifying the components of crude benzene,
Solid Fuel Chem. (Engl. Transl.), 1979, 13, 3, 82-87. [all data]
Engewald, Epsch, et al., 1974
Engewald, W.; Epsch, K.; Graefe, J.; Welsch, Th.,
Molekülstruktur und retentionsverhalten. II. Retentionsverhalten cycloaliphatischer kohlenwasser-stoffe bei der gas-adsorptions- und gas-verteilungschromatographie,
J. Chromatogr., 1974, 91, 623-631, https://doi.org/10.1016/S0021-9673(01)97943-9
. [all data]
Besson and Gäumann, 1973
Besson, R.; Gäumann, T.,
Indices de rétention de cycloalcanes, cycloalcènes, bicycloalkyles, cycloalkyl-cycloalcényles et bicycloalcényles en chromatographie en phase gazeuse,
Helv. Chim. Acta, 1973, 56, 3, 1159-1164, https://doi.org/10.1002/hlca.19730560339
. [all data]
Agrawal, Tesarík, et al., 1972
Agrawal, B.B.; Tesarík, K.; Janák, J.,
Gas chromatographic characterization of sulphur compounds in the 93-162° gasoline cut from Romashkino crude oil using Kováts retention indices,
J. Chromatogr., 1972, 65, 1, 207-215, https://doi.org/10.1016/S0021-9673(00)86933-2
. [all data]
Sidorov, Petrova, et al., 1972
Sidorov, R.I.; Petrova, V.I.; Ivanova, M.P.,
Qualitative analysis of wide-boiling fraction C5-C10 with capillary chromatography
in Processes in chromatographic columns. Vol.17, 1972, 14-25. [all data]
Hively and Hinton, 1968
Hively, R.A.; Hinton, R.E.,
Variation of the retention index with temperature on squalane substrates,
J. Gas Chromatogr., 1968, 6, 4, 203-217, https://doi.org/10.1093/chromsci/6.4.203
. [all data]
Schomburg, 1967
Schomburg, G.,
Struktur und Retentionsverhalten von Offenkettigen und Cyclischen Kohlenwasserstoffen und Deren Einfacher Substitutionsprodukte,
Anal. Chim. Acta., 1967, 38, 45-64, https://doi.org/10.1016/S0003-2670(01)80560-2
. [all data]
Schomburg, 1966
Schomburg, G.,
Gaschromatographische Retentionsdaten und struktur chemischer verbindungen. III. Alkylverzweigte und ungesättigte cyclische Kohlenwasserstoffe,
J. Chromatogr., 1966, 23, 18-41, https://doi.org/10.1016/S0021-9673(01)98653-4
. [all data]
Schomburg, 1964
Schomburg, G.,
Gas-Chromatographische Retentionsdaten und Struktur Chemischer Verbindungen. I. Verzweigte Aliphatische und Alicyclische Carbonsäure-Methylester,
J. Chromatogr., 1964, 14, 157-177, https://doi.org/10.1016/S0021-9673(00)86608-X
. [all data]
Louis, 1971
Louis, R.,
Kovats-index-tafeln zur gaschromatographischen analyse von kohlenwasserstoffgemischen,
Erdoel Kohle Erdgas Petrochem., 1971, 24, 2, 88-94. [all data]
White, Hackett, et al., 1992
White, C.M.; Hackett, J.; Anderson, R.R.; Kail, S.; Spock, P.S.,
Linear temperature programmed retention indices of gasoline range hydrocarbons and chlorinated hydrocarbons on cross-linked polydimethylsiloxane,
J. Hi. Res. Chromatogr., 1992, 15, 2, 105-120, https://doi.org/10.1002/jhrc.1240150211
. [all data]
Buchman, Cao, et al., 1984
Buchman, O.; Cao, G.-Y.; Peng, C.T.,
Structure assignment by retention index in gas-liquid radiochromatography of substituted cyclohexenes,
J. Chromatogr., 1984, 312, 75-90, https://doi.org/10.1016/S0021-9673(01)92765-7
. [all data]
Peng, 2000
Peng, C.T.,
Prediction of retention indices. V. Influence of electronic effects and column polarity on retention index,
J. Chromatogr. A, 2000, 903, 1-2, 117-143, https://doi.org/10.1016/S0021-9673(00)00901-8
. [all data]
Peng, Ding, et al., 1988
Peng, C.T.; Ding, S.F.; Hua, R.L.; Yang, Z.C.,
Prediction of Retention Indexes I. Structure-Retention Index Relationship on Apolar Columns,
J. Chromatogr., 1988, 436, 137-172, https://doi.org/10.1016/S0021-9673(00)94575-8
. [all data]
Supelco, 2012
Supelco, CatalogNo. 24160-U,
Petrocol DH Columns. Catalog No. 24160-U, 2012, retrieved from http://www.sigmaaldrich.com/etc/medialib/docs/Supelco/Datasheet/1/w97949.Par.0001.File.tmp/w97949.pdf. [all data]
Chen, 2008
Chen, H.-F.,
Quantitative prediction of gas chromatography retention indices with support vector machines, radial basis neutral networks and multiple linear regression,
Anal. Chim. Acta, 2008, 609, 1, 24-36, https://doi.org/10.1016/j.aca.2008.01.003
. [all data]
Robinson and Odell, 1971
Robinson, P.G.; Odell, A.L.,
A system of standard retention indices and its uses. The characterisation of stationary phases and the prediction of retention indices,
J. Chromatogr., 1971, 57, 1-10, https://doi.org/10.1016/0021-9673(71)80001-8
. [all data]
Robinson and Odell, 1971, 2
Robinson, P.G.; Odell, A.L.,
Comparison of isothermal and non-linear temperature programmed gas chromatography. The temperature dependence of the retention indices of a number of hydrocarbons on squalane and SE-30,
J. Chromatogr., 1971, 57, 11-17, https://doi.org/10.1016/0021-9673(71)80002-X
. [all data]
Peng, Yang, et al., 1991
Peng, C.T.; Yang, Z.C.; Ding, S.F.,
Prediction of rentention idexes. II. Structure-retention index relationship on polar columns,
J. Chromatogr., 1991, 586, 1, 85-112, https://doi.org/10.1016/0021-9673(91)80028-F
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas S°gas Entropy of gas at standard conditions ΔfH°gas Enthalpy of formation of gas 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.