Propane, 2-chloro-2-methyl-
- Formula: C4H9Cl
- Molecular weight: 92.567
- IUPAC Standard InChIKey: NBRKLOOSMBRFMH-UHFFFAOYSA-N
- CAS Registry Number: 507-20-0
- 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: tert-Butyl Chloride; Trimethylchloromethane; 2-Chloro-2-methylpropane; 2-Chloroisobutane; 2-Methyl-2-chloropropane; 2-Methyl-2-propyl chloride; tert-C4H9Cl; Chlorotrimethylmethane; Tertiary-butyl chloride; NSC 6527
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
RCD - Robert C. Dunbar
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: Cl- + C4H9Cl = (Cl- • C4H9Cl)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 69.5 ± 4.2 | kJ/mol | TDAs | Li, Ross, et al., 1996 | gas phase; B |
ΔrH° | 59.8 ± 8.4 | kJ/mol | IMRE | Larson and McMahon, 1984 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 88.7 | J/mol*K | N/A | Larson and McMahon, 1984 | gas phase; switching reaction(Cl-)t-C4H9F, Entropy change calculated or estimated; Larson and McMahon, 1984, 2; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 34.7 ± 0.84 | kJ/mol | TDAs | Li, Ross, et al., 1996 | gas phase; B |
ΔrG° | 33. ± 8.4 | kJ/mol | IMRE | Larson and McMahon, 1984 | gas phase; B,M |
By formula: C4H9Cl = C4H8 + HCl
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 74. ± 2. | kJ/mol | Eqk | Howlett, 1955 | gas phase; ALS |
ΔrH° | 74.06 | kJ/mol | Eqk | Howlett, 1951 | gas phase; Hf-gas-(390) -44.4 kcal/mol; ALS |
ΔrH° | 72. ± 2. | kJ/mol | Eqk | Kistiakowsky and Stauffer, 1937 | gas phase; ALS |
By formula: Br- + C4H9Cl = (Br- • C4H9Cl)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 58.2 ± 4.2 | kJ/mol | TDAs | Li, Ross, et al., 1996 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 27.6 ± 0.84 | kJ/mol | TDAs | Li, Ross, et al., 1996 | gas phase; B |
By formula: CN- + C4H9Cl = (CN- • C4H9Cl)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 66.5 ± 4.2 | kJ/mol | TDAs | Li, Ross, et al., 1996 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 31.6 ± 0.84 | kJ/mol | TDAs | Li, Ross, et al., 1996 | gas phase; B |
By formula: CH3+ + C4H9Cl = (CH3+ • C4H9Cl)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 340. | kJ/mol | PHPMS | Sharma, Meza de Hojer, et al., 1985 | gas phase; from t-C4H9+ + CH3Cl; Cox and Pilcher, 1970, Rosenstock, Buff, et al., 1982; M |
By formula: C4H8 + HCl = C4H9Cl
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -63.1 ± 1.8 | kJ/mol | Cm | Arnett and Pienta, 1980 | liquid phase; solvent: Methylene chloride; Hydrochloronation; ALS |
By formula: Na+ + C4H9Cl = (Na+ • C4H9Cl)
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
57.3 | 298. | IMRE | McMahon and Ohanessian, 2000 | Anchor alanine=39.89; RCD |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, 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:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.58 | EST | Luo and Pacey, 1992 | LL |
10.3 ± 0.1 | EI | Baldwin, Maccoll, et al., 1964 | RDSH |
10.61 ± 0.03 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
10.69 | PE | Kimura, Katsumata, et al., 1981 | Vertical value; LLK |
10.76 | PE | Flamini, Semprini, et al., 1976 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C4H8+ | 9.56 | HCl | EI | Baldwin, Maccoll, et al., 1966 | RDSH |
C4H9+ | 10.51 ± 0.01 | Cl | PI | McLoughlin and Traeger, 1979 | LLK |
C4H9+ | 10.80 ± 0.07 | Cl | EI | Baldwin, Maccoll, et al., 1966 | RDSH |
Gas Chromatography
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, 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 | Squalane | 110. | 524. | Engewald, Mai, et al., 1976 | N2, Chromosorb W (60-80 mesh); Column length: 3. m |
Packed | Squalane | 27. | 518. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 49. | 521. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 67. | 523. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Squalane | 86. | 525. | Hively and Hinton, 1968 | He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm |
Packed | Apiezon L | 130. | 533. | von Kováts, 1958 | Celite (40:60 Gewichtsverhaltnis) |
Packed | Apiezon L | 70. | 530. | von Kováts, 1958 | Celite (40:60 Gewichtsverhaltnis) |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Petrocol DH | 530.04 | White, Douglas, et al., 1992 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Capillary | Petrocol DH | 530.66 | White, Douglas, et al., 1992 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Capillary | Petrocol DH | 530. | White, Hackett, et al., 1992 | 100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Apiezon L | 130. | 551. | Arruda, Junkes, et al., 2008 |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polydimethyl siloxanes | 540. | Zenkevich, 2003 | Program: not specified |
Capillary | Methyl Silicone | 540. | Zenkevich and Marinichev, 2001 | Program: not specified |
Capillary | Methyl Silicone | 540. | Zenkevich, 2001 | Program: not specified |
Capillary | Methyl Silicone | 540. | Zenkevich, 1999 | Program: not specified |
Capillary | Methyl Silicone | 540. | Zenkevich, 1998 | Program: not specified |
Capillary | Polydimethyl siloxanes | 540. | Zenkevich and Chupalov, 1996 | Program: not specified |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Li, Ross, et al., 1996
Li, C.; Ross, P.; Szulejko, J.; McMahon, T.B.,
High-Pressure Mass Spectrometric Investigations of the Potential Energy Surfaces of Gas-Phase Sn2 Reactions.,
J. Am. Chem. Soc., 1996, 118, 39, 9360, https://doi.org/10.1021/ja960565o
. [all data]
Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B.,
Hydrogen bonding in gas phase anions. An experimental investigation of the interaction between chloride ion and bronsted acids from ICR chloride exchange equilibria,
J. Am. Chem. Soc., 1984, 106, 517. [all data]
Larson and McMahon, 1984, 2
Larson, J.W.; McMahon, T.B.,
Gas phase negative ion chemistry of alkylchloroformates,
Can. J. Chem., 1984, 62, 675. [all data]
Howlett, 1955
Howlett, K.E.,
The use of equilibrium constants to calculate thermodynamic quantities. Part II,
J. Chem. Soc., 1955, 1784-17. [all data]
Howlett, 1951
Howlett, K.E.,
The use of equilibrium constants to calculate thermodynamic quantities. Part I. Equilibria in the system tert.-butyl chloride, isobutene, hydrogen chloride,
J. Chem. Soc., 1951, 1409-1412. [all data]
Kistiakowsky and Stauffer, 1937
Kistiakowsky, G.B.; Stauffer, C.H.,
The kinetics of gaseous addition of halogen acids to isobutene, 1937, 165-170. [all data]
Sharma, Meza de Hojer, et al., 1985
Sharma, D.M.S.; Meza de Hojer, S.; Kebarle, P.,
Stabilities of halonium ions from a study of gas-phase equilibria R+ + XR' = (RXR')+,
J. Am. Chem. Soc., 1985, 107, 13, 3757, https://doi.org/10.1021/ja00299a002
. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds
in Academic Press, New York, 1970. [all data]
Rosenstock, Buff, et al., 1982
Rosenstock, H.M.; Buff, R.; Ferreira, M.A.A.; Lias, S.G.; Parr, A.C.; Stockbauer, R.L.; Holmes, J.L.,
Fragmentation mechanism and energetics of some alkyl halide ions,
J. Am. Chem. Soc., 1982, 104, 2337. [all data]
Arnett and Pienta, 1980
Arnett, E.M.; Pienta, N.J.,
Stabilities of carbonium ions in solution. 12. Heats of formation of alkyl chlorides as an entree to heats of solvation of aliphatic carbonium ions,
J. Am. Chem. Soc., 1980, 102, 3329-3334. [all data]
McMahon and Ohanessian, 2000
McMahon, T.B.; Ohanessian, G.,
An Experimental and Ab Initio Study of the Nature of the Binding in Gas-Phase Complexes of Sodium Ions,
Chem. Eur. J., 2000, 6, 16, 2931, https://doi.org/10.1002/1521-3765(20000818)6:16<2931::AID-CHEM2931>3.0.CO;2-7
. [all data]
Luo and Pacey, 1992
Luo, Y.-R.; Pacey, P.D.,
Effects of alkyl substitution on ionization energies of alkanes and haloalkanes and on heats of formation of their molecular cations. Part 2. Alkanes and chloro-, bromo- and iodoalkanes,
Int. J. Mass Spectrom. Ion Processes, 1992, 112, 63. [all data]
Baldwin, Maccoll, et al., 1964
Baldwin, M.; Maccoll, A.; Miller, S.I.,
Appearance potentials of the lower chloroalkanes,
J. Am. Chem. Soc., 1964, 86, 4498. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S.,
Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules
in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]
Flamini, Semprini, et al., 1976
Flamini, A.; Semprini, E.; Stefani, F.; Sorriso, S.; Cardaci, G.,
He(I) photoelectron spectra and semiempirical molecular-orbital calculations on methylmetal halides of group 4A elements,
J. Chem. Soc. Dalton Trans., 1976, 731. [all data]
Baldwin, Maccoll, et al., 1966
Baldwin, M.; Maccoll, A.; Miller, S.I.,
Ionization and appearance potentials from a study of alkyl chlorides,
Advan. Mass Spectrom., 1966, 3, 259. [all data]
McLoughlin and Traeger, 1979
McLoughlin, R.G.; Traeger, J.C.,
Heat of formation for tert-butyl cation in the gas phase,
J. Am. Chem. Soc., 1979, 101, 5791. [all data]
Engewald, Mai, et al., 1976
Engewald, V.W.; Mai, H.; Mühlstädt, M.,
Gaschromatographische Charakterisierung von Chlorierungs-produkten des Isobutens,
J. Prakt. Chem., 1976, 318, 4, 565-574, https://doi.org/10.1002/prac.19763180405
. [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]
von Kováts, 1958
von Kováts, E.,
206. Gas-chromatographische Charakterisierung organischer Verbindungen. Teil 1: Retentionsindices aliphatischer Halogenide, Alkohole, Aldehyde und Ketone,
Helv. Chim. Acta, 1958, 41, 7, 1915-1932, https://doi.org/10.1002/hlca.19580410703
. [all data]
White, Douglas, et al., 1992
White, C.M.; Douglas, L.J.; Hackett, J.P.; Anderson, R.R.,
Characterization of synthetic gasoline from the chloromethane-zeolite reaction,
Energy Fuels, 1992, 6, 1, 76-82, https://doi.org/10.1021/ef00031a012
. [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]
Arruda, Junkes, et al., 2008
Arruda, A.C.S.; Junkes, B. da.S.; Souza, E.S.; Yunes, R.A.; Heizen, V.E.F.,
Semi-Emlirical Topological Index to Predict Properties of Halogenated Aliphatic Compounds,
J. Chemometrics, 2008, 22, 3-4, 186-194, https://doi.org/10.1002/cem.1121
. [all data]
Zenkevich, 2003
Zenkevich, I.G.,
Criteria for Evaluation of Elution Order of Isomeric Organic Compounds,
Zh. Phys. Khim. (Rus.), 2003, 77, 1, 92-98. [all data]
Zenkevich and Marinichev, 2001
Zenkevich, I.G.; Marinichev, A.N.,
Comparison of Topological and Dynamics Molecular Characteristics for Precalculation of Chromatographic Retention Parameters of Organic Compounds (in Russian),
Zh. Struct. Khim., 2001, 42, 5, 893-902. [all data]
Zenkevich, 2001
Zenkevich, I.G.,
Interpretation of Gas Chromatographic Retention Indices in estimation of Structures of Isomeric Products of Radical Chlorinating of Alkyl Arenes,
Zh. Org. Khim., 2001, 37, 2, 283-293. [all data]
Zenkevich, 1999
Zenkevich, I.G.,
Mutual Correlation between Gas-Chromatographic Retention Indices of Organic Compounds from Different Series,
Zh. Anal. Khim., 1999, 54, 12, 1272-1279. [all data]
Zenkevich, 1998
Zenkevich, I.G.,
Reciprocally Unambiguous Conformity Between GC Retention Indices and Boiling Points within Two- and Multidimensional Taxonomic Groups of Organic Compounds,
J. Hi. Res. Chromatogr., 1998, 21, 10, 565-568, https://doi.org/10.1002/(SICI)1521-4168(19981001)21:10<565::AID-JHRC565>3.0.CO;2-6
. [all data]
Zenkevich and Chupalov, 1996
Zenkevich, I.G.; Chupalov, A.A.,
New Possibilities of Chromato Mass Pectrometric Identification of Organic Compounds Using Increments of Gas Chromatographic Retention Indices of Molecular Structural Fragments,
Zh. Org. Khim. (Rus.), 1996, 32, 5, 656-666. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy T Temperature ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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