2-Methyladamantane
- Formula: C11H18
- Molecular weight: 150.2606
- IUPAC Standard InChIKey: VMODAALDMAYACB-UHFFFAOYSA-N
- CAS Registry Number: 700-56-1
- 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: Tricyclo[3.3.1.13,7]decane, 2-methyl-
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Gas phase thermochemistry data
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -152.0 ± 4.4 | kJ/mol | Ccb | Clark, Knox, et al., 1979 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -149.2 ± 2.6 kJ/mol; Gas flow technique for Hs, see Clark, Knox, et al., 1975 |
ΔfH°gas | -151.4 ± 4.0 | kJ/mol | Ccb | Steele and Watt, 1977 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -156. ± 2. kJ/mol |
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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 414.0 | K | N/A | Clark, Knox, et al., 1977 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.5 K; sealed tube melting point; compound too volatile to perform calorimetric run on fusion.; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 67.53 | kJ/mol | V | Clark, Knox, et al., 1979 | Gas flow technique for Hs, see Clark, Knox, et al., 1975; ALS |
ΔsubH° | 64.7 | kJ/mol | N/A | Clark, Knox, et al., 1979 | DRB |
ΔsubH° | 68. ± 1. | kJ/mol | V | Steele and Watt, 1977 | ALS |
ΔsubH° | 73.6 | kJ/mol | N/A | Steele and Watt, 1977 | DRB |
ΔsubH° | 68.2 ± 1.3 | kJ/mol | N/A | Steele and Watt, 1977 | Based on data from 300. to 340. K.; AC |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
67.5 ± 2.1 | 320. | Clark, Knox, et al., 1975, 2 | Based on data from 310. to 330. K.; AC |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, 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 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
By formula: C11H18 = C11H18
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -14.1 ± 0.46 | kJ/mol | Eqk | Engler, Blanchard, et al., 1972 | liquid phase; GLC |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, 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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.24 | PE | Bodor, Dewar, et al., 1970 | RDSH |
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 | Chemical Concepts |
NIST MS number | 187018 |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, 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 | SE-30 | 150. | 1200. | Yashkin, Kurbatova, et al., 2001 | CHromaton N-AW; Column length: 1. m |
Capillary | Squalane | 110. | 1176.2 | Bender, Said, et al., 1986 | He; Column length: 100. m; Column diameter: 0.25 mm |
Capillary | SE-30 | 110. | 1166. | Bogoslovsky, Anvaer, et al., 1978 | |
Capillary | SE-30 | 120. | 1175. | Bogoslovsky, Anvaer, et al., 1978 | |
Capillary | SE-30 | 130. | 1182. | Bogoslovsky, Anvaer, et al., 1978 | |
Capillary | SE-30 | 140. | 1192. | Bogoslovsky, Anvaer, et al., 1978 | |
Capillary | SE-30 | 145. | 1192. | Bogoslovsky, Anvaer, et al., 1978 | |
Capillary | SE-30 | 150. | 1200. | Bogoslovsky, Anvaer, et al., 1978 | |
Capillary | Squalane | 100. | 1168. | Bogoslovsky, Anvaer, et al., 1978 | |
Capillary | Squalane | 110. | 1175. | Bogoslovsky, Anvaer, et al., 1978 | |
Capillary | Squalane | 125. | 1182. | Bogoslovsky, Anvaer, et al., 1978 | |
Capillary | Squalane | 140. | 1192. | Bogoslovsky, Anvaer, et al., 1978 | |
Packed | SE-30 | 120. | 1175. | Mitra, Mohan, et al., 1974 | N2, Chrom W; Column length: 6.1 m |
Packed | SE-30 | 130. | 1182. | Mitra, Mohan, et al., 1974 | N2, Chrom W; Column length: 6.1 m |
Capillary | SE-30 | 130. | 1187. | Mitra, Mohan, et al., 1974, 2 | H2; Column length: 6.1 m; Column diameter: 3.18 mm |
Capillary | SE-30 | 140. | 1192. | Mitra, Mohan, et al., 1974, 2 | H2; Column length: 6.1 m; Column diameter: 3.18 mm |
Capillary | SE-30 | 150. | 1200. | Mitra, Mohan, et al., 1974, 2 | H2; Column length: 6.1 m; Column diameter: 3.18 mm |
Capillary | Squalane | 100. | 1162. | Mitra, Mohan, et al., 1974, 2 | H2; Column length: 50. m; Column diameter: 0.2 mm |
Capillary | Squalane | 100. | 1168. | Mitra, Mohan, et al., 1974, 2 | H2; Column length: 50. m; Column diameter: 0.2 mm |
Capillary | Squalane | 110. | 1175. | Hála, Eyem, et al., 1970 | N2; Column length: 50. m; Column diameter: 0.2 mm |
Capillary | Squalane | 125. | 1182. | Hála, Eyem, et al., 1970 | N2; Column length: 50. m; Column diameter: 0.2 mm |
Capillary | Squalane | 140. | 1192. | Hála, Eyem, et al., 1970 | N2; Column length: 50. m; Column diameter: 0.2 mm |
Capillary | SE-30 | 145. | 1196. | Burkhard, Vais, et al., 1969 | N2; Column length: 50. m; Column diameter: 0.27 mm |
Capillary | SE-30 | 160. | 1209. | Burkhard, Vais, et al., 1969 | N2; Column length: 50. m; Column diameter: 0.27 mm |
Kovats' RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5MS | 1168. | Yang, Wang, et al., 2006 | 30. m/0.25 mm/0.25 μm, 50. C @ 2. min, 6. K/min; Tend: 300. C |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Carbowax 20M | 150. | 1407. | Yashkin, Kurbatova, et al., 2001 | Column length: 1. m |
Capillary | Carbowax 20M | 145. | 1400. | Burkhard, Vais, et al., 1969 | N2; Column length: 50. m; Column diameter: 0.27 mm |
Capillary | Carbowax 20M | 160. | 1420. | Burkhard, Vais, et al., 1969 | N2; Column length: 50. m; Column diameter: 0.27 mm |
Capillary | Carbowax 20M | 175. | 1442. | Burkhard, Vais, et al., 1969 | N2; Column length: 50. m; Column diameter: 0.27 mm |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polydimethyl siloxane | 1196. | Bayat and Abad, 2011 | Program: not specified |
Capillary | Polydimethyl siloxane | 1196. | Bayat and Abad M.F.Y., 2011 | Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, 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.
Clark, Knox, et al., 1979
Clark, T.; Knox, T.M.O.; McKervey, M.A.; Mackle, H.; Rooney, J.J.,
Thermochemistry of bridged-ring substances. Enthalpies of formation of some diamondoid hydrocarbons and of perhydroquinacene. Comparisons with data from empirical force field calculations,
J. Am. Chem. Soc., 1979, 101, 2404-2410. [all data]
Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P.,
Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]
Clark, Knox, et al., 1975
Clark, T.; Knox, T.M.; Mackle, H.; McKervey, M.A.; Rooney, J.J.,
Calorimetric evaluation of enthalpies of formation of some bridged-ring hydrocarbons. Comparison with data from empirical force field calculations.,
J. Am. Chem. Soc., 1975, 97, 3835-3836. [all data]
Steele and Watt, 1977
Steele, W.V.; Watt, I.,
The standard enthalpies of formation of adamantanoid compounds 4. Methyladamantanes,
J. Chem. Thermodyn., 1977, 9, 843-849. [all data]
Clark, Knox, et al., 1977
Clark, Timothy; Knox, Trevor Mc.O.; Mackle, Henry; McKervey, M. Anthony,
Order--disorder transitions in substituted adamantanes,
J. Chem. Soc., Faraday Trans. 1, 1977, 73, 0, 1224, https://doi.org/10.1039/f19777301224
. [all data]
Clark, Knox, et al., 1975, 2
Clark, Timothy; Knox, Trevor; Mackle, Henry; McKervey, M. Anthony; Rooney, John J.,
Heats of sublimation of some cage hydrocarbons by a temperature scanning technique,
J. Chem. Soc., Faraday Trans. 1, 1975, 71, 0, 2107, https://doi.org/10.1039/f19757102107
. [all data]
Engler, Blanchard, et al., 1972
Engler, E.M.; Blanchard, K.R.; Schleyer, P.v.R.,
Enhanced axial-equatorial enthalpy differences in the methyl adamantanes,
J. Chem. Soc. Chem. Commun., 1972, 1210-1212. [all data]
Bodor, Dewar, et al., 1970
Bodor, N.; Dewar, M.J.S.; Worley, S.D.,
Photoelectron spectra of molecules. III. Ionization potentials of some cyclic hydrocarbons and their derivatives, and heats of formation and ionization potentials calculated by the MINDO SCF MO method,
J. Am. Chem. Soc., 1970, 92, 19. [all data]
Yashkin, Kurbatova, et al., 2001
Yashkin, S.N.; Kurbatova, S.V.; Buryak, A.K.,
Gas chromatography of halogenated adamantanes,
Russ. Chem. Bull. (Engl. Transl.), 2001, 50, 5, 828-832, https://doi.org/10.1023/A:1011350908009
. [all data]
Bender, Said, et al., 1986
Bender, A.O.; Said, E.Z.; Abdulsada, A.K.,
Gas chromatographic identification of adamantanes in some Iraqi crude oils,
Analyst, 1986, 111, 5, 575-576, https://doi.org/10.1039/an9861100575
. [all data]
Bogoslovsky, Anvaer, et al., 1978
Bogoslovsky, Yu.N.; Anvaer, B.I.; Vigdergauz, M.S.,
Chromatographic constants in gas chromatography (in Russian), Standards Publ. House, Moscow, 1978, 192. [all data]
Mitra, Mohan, et al., 1974
Mitra, G.D.; Mohan, G.; Sinha, A.,
Advances in the utilization of the retention index system for characterizing hydrocarbons in complex mixtures by gas chromatography,
J. Chromatogr., 1974, 99, 215-230, https://doi.org/10.1016/S0021-9673(00)90857-4
. [all data]
Mitra, Mohan, et al., 1974, 2
Mitra, G.D.; Mohan, G.; Sinha, A.,
Gas chromatographic analysis of complex hydrocarbon mixtures,
J. Chromatogr. A, 1974, 91, 633-648, https://doi.org/10.1016/S0021-9673(01)97944-0
. [all data]
Hála, Eyem, et al., 1970
Hála, S.; Eyem, J.; Burkhard, J.; Landa, S.,
Retention indices of adamantanes,
J. Chromatogr. Sci., 1970, 8, 4, 203-209, https://doi.org/10.1093/chromsci/8.4.203
. [all data]
Burkhard, Vais, et al., 1969
Burkhard, J.; Vais, J.; Vodicka, L.; Landa, S.,
Adamantane and its derivatives. XVI. The gas chromatographic characterization of adamantane derivatives,
J. Chromatogr., 1969, 42, 207-218, https://doi.org/10.1016/S0021-9673(01)80617-8
. [all data]
Yang, Wang, et al., 2006
Yang, C.; Wang, Z.D.; Hollebone, B.P.; Peng, X.; Fingas, M.; Landriault, M.,
GC/MS Quantitation of diamondoid compounds in crude oils and petroleum products,
Environmental Forensics, 2006, 7, 4, 377-390, https://doi.org/10.1080/15275920600996396
. [all data]
Bayat and Abad, 2011
Bayat, Z.; Abad, M.F.Y.,
Quantitative structure-property relationship (QSPR) study of Kovats retention indices of some of adamantane derivatives by the genetic algorithm amd nultiply linear regression (GA-MLR) method,
Petroleum Coal, 2011, 53, 2, 132-140. [all data]
Bayat and Abad M.F.Y., 2011
Bayat, Z.; Abad M.F.Y.,
Computational approaches to the prediction of the Kovats retention index (RI) for adamantane derivatives (AD) as a drug,
J. Chem. Pharm. Res., 2011, 3, 1, 48-55. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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