2-Butene, 2-methyl-

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Gas 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-9.92 ± 0.21kcal/molEqkWiberg and Hao, 1991Heat of hydration; ALS
Δfgas-9.80kcal/molN/AGood and Smith, 1979Value computed using ΔfHliquid° value of -68.1±1.3 kj/mol from Good and Smith, 1979 and ΔvapH° value of 27.1 kj/mol from Wiberg and Hao, 1991.; DRB

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
26.530 ± 0.079319.04Scott D.W., 1949GT
29.391 ± 0.088362.37
32.010 ± 0.096402.26
34.19 ± 0.10436.18
36.34 ± 0.11471.09

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
25.100298.15Scott D.W., 1949Recommended results of statistical thermodynamics calculation are in good agreement with experimental data.; GT
25.220300.
31.931400.
38.069500.
43.420600.
48.040700.
52.051800.
55.521900.
58.5491000.
61.1591100.
63.4491200.
65.4181300.
67.1391400.
68.6301500.

Reaction 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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

2-Methyl-1-butene = 2-Butene, 2-methyl-

By formula: C5H10 = C5H10

Quantity Value Units Method Reference Comment
Δr-1.6 ± 0.72kcal/molEqkRihko, Linnekoski, et al., 1994liquid phase; solvent: Methanol/H+; ALS
Δr-1.9 ± 0.33kcal/molEqkRihko, Linnekoski, et al., 1994liquid phase; solvent: Ethanol/H+; ALS

C3H9Si+ + 2-Butene, 2-methyl- = (C3H9Si+ • 2-Butene, 2-methyl-)

By formula: C3H9Si+ + C5H10 = (C3H9Si+ • C5H10)

Quantity Value Units Method Reference Comment
Δr38.2kcal/molPHPMSLi and Stone, 1989gas phase; condesation; M
Quantity Value Units Method Reference Comment
Δr48.0cal/mol*KPHPMSLi and Stone, 1989gas phase; condesation; M

2-Butene, 2-methyl- + Methyl Alcohol = Butane, 2-methoxy-2-methyl-

By formula: C5H10 + CH4O = C6H14O

Quantity Value Units Method Reference Comment
Δr-7.84kcal/molEqkSerda, Izquierdo, et al., 1995liquid phase; ALS
Δr-6.41 ± 0.55kcal/molEqkRihko, Linnekoski, et al., 1994liquid phase; solvent: Alcohol/alkane mixture; ALS

2-Butene, 2-methyl- + Hydrogen chloride = Butane, 2-chloro-2-methyl-

By formula: C5H10 + HCl = C5H11Cl

Quantity Value Units Method Reference Comment
Δr-14.12 ± 0.22kcal/molCmArnett and Pienta, 1980liquid phase; solvent: Methylene chloride; Hydrochloroination; ALS

2-Butene, 2-methyl- + Ethanol = Butane, 2-ethoxy-2-methyl-

By formula: C5H10 + C2H6O = C7H16O

Quantity Value Units Method Reference Comment
Δr-6.5 ± 1.6kcal/molEqkRihko, Linnekoski, et al., 1994liquid phase; solvent: Alcohol/alkane mixture; ALS

2-Butene, 2-methyl- + Trifluoroacetic acid = Acetic acid, trifluoro-, 2,2-dimethylpropyl ester

By formula: C5H10 + C2HF3O2 = C7H11F3O2

Quantity Value Units Method Reference Comment
Δr-9.11 ± 0.04kcal/molCmWiberg and Hao, 1991liquid phase; Trifluoroacetolysis; ALS

2-Butene, 2-methyl- = 1-Butene, 3-methyl-

By formula: C5H10 = C5H10

Quantity Value Units Method Reference Comment
Δr3.40 ± 0.35kcal/molEqkRadyuk, Kabo, et al., 1973gas phase; Heat of isomerization at 622 K; ALS

2-Butene, 2-methyl- = 2-Methyl-1-butene

By formula: C5H10 = C5H10

Quantity Value Units Method Reference Comment
Δr1.93 ± 0.12kcal/molEqkRadyuk, Kabo, et al., 1973gas phase; Heat of isomerization at 562 K; ALS

2-Butene, 2-methyl- + Bromine = 2,3-dibromo-2-methylbutane

By formula: C5H10 + Br2 = C5H10Br2

Quantity Value Units Method Reference Comment
Δr-30.40 ± 0.20kcal/molCmConn, Kistiakowsky, et al., 1938gas phase; At 355 °K; ALS

Hydrogen + 2-Butene, 2-methyl- = Butane, 2-methyl-

By formula: H2 + C5H10 = C5H12

Quantity Value Units Method Reference Comment
Δr-26.68 ± 0.06kcal/molChydKistiakowsky, Ruhoff, et al., 1936gas phase; ALS

2-Butene, 2-methyl- + Methyl Alcohol = Butane, 1-methoxy-2-methyl-

By formula: C5H10 + CH4O = C6H14O

Quantity Value Units Method Reference Comment
Δr-7.84 ± 0.33kcal/molEqkSerda, Izquierdo, et al., 1995liquid phase; ALS

Butane, 2-ethoxy-2-methyl- = 2-Butene, 2-methyl- + Ethanol

By formula: C7H16O = C5H10 + C2H6O

Quantity Value Units Method Reference Comment
Δr8.16 ± 0.19kcal/molEqkSharonov, Rozhnov, et al., 1995liquid phase; ALS

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Ion clustering 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C5H10+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)8.69 ± 0.01eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)193.3kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity186.4kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
8.69PITraeger, 1986LBLHLM
8.68 ± 0.02PEBieri, Burger, et al., 1977LLK
8.682 ± 0.003PEMasclet, Grosjean, et al., 1973LLK
8.70EILossing, 1972LLK
8.83 ± 0.11EIGross and Wilkins, 1971LLK
8.72PEFrost and Sandhu, 1971LLK
8.85 ± 0.04EIBock and Seidl, 1968RDSH
8.67 ± 0.02PIWatanabe, Nakayama, et al., 1962RDSH
8.68PIBralsford, Harris, et al., 1960RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H6+11.70 ± 0.11C2H4EIGross and Wilkins, 1971LLK
C4H7+10.80CH3PITraeger, 1986LBLHLM
C4H7+10.84CH3EIBrand and Baer, 1984LBLHLM
C4H7+10.84CH3EILossing, 1972LLK
C4H7+11.33 ± 0.12CH3EIGross and Wilkins, 1971LLK

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, 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 by: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

C3H9Si+ + 2-Butene, 2-methyl- = (C3H9Si+ • 2-Butene, 2-methyl-)

By formula: C3H9Si+ + C5H10 = (C3H9Si+ • C5H10)

Quantity Value Units Method Reference Comment
Δr38.2kcal/molPHPMSLi and Stone, 1989gas phase; condesation
Quantity Value Units Method Reference Comment
Δr48.0cal/mol*KPHPMSLi and Stone, 1989gas phase; condesation

Gas Chromatography

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering 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

View large format table.

Column type Active phase Temperature (C) I Reference Comment
CapillaryMethyl Silicone30.520.2Soják, Addová, et al., 2002He; Column length: 150. m; Column diameter: 0.250 mm
CapillarySqualane30.513.8Soják, Addová, et al., 2002He; Column length: 93. m; Column diameter: 0.250 mm
CapillaryOV-170.515.Annino and Villalobos, 199922.6 m/0.53 mm/2.78 μm
CapillaryCP Sil 5 CB20.520.1Do and Raulin, 199225. m/0.15 mm/2. μm, H2
CapillaryPoraPLOT Q100.504.Do and Raulin, 198910. m/0.32 mm/10. μm, H2
CapillaryPoraPLOT Q160.504.Do and Raulin, 198910. m/0.32 mm/10. μm, H2
CapillaryOV-145.520.Guan, Kiraly, et al., 198920. m/0.32 mm/1.2 μm, He
CapillaryOV-165.519.8Guan, Kiraly, et al., 198920. m/0.32 mm/1.2 μm, He
CapillaryOV-145.520.Guan, Kiraly, et al., 198925. m/0.31 mm/0.52 μm, He
CapillaryOV-165.519.8Guan, Kiraly, et al., 198925. m/0.31 mm/0.52 μm, He
CapillarySqualane50.514.3Guan, Kiraly, et al., 198950. m/0.22 mm/0.21 μm, He
CapillarySqualane70.514.4Guan, Kiraly, et al., 198950. m/0.22 mm/0.21 μm, He
CapillarySE-5465.523.Guan, Kiraly, et al., 198925. m/0.31 mm/0.52 μm, He
CapillaryHP-160.519.Bangjie, Yijian, et al., 1988N2; Column length: 25. m; Column diameter: 0.20 mm
CapillaryHP-160.519.Bangjie, Yijian, et al., 1988N2; Column length: 25. m; Column diameter: 0.20 mm
CapillaryOV-10140.520.Laub and Purnell, 1988 
CapillaryOV-10160.520.Laub and Purnell, 1988 
CapillaryOV-10180.520.Laub and Purnell, 1988 
CapillarySqualane50.514.5Papazova, Milina, et al., 1988Column length: 50. m; Column diameter: 0.25 mm
CapillaryOV-10150.519.9Boneva and Dimov, 1986100. m/0.27 mm/0.9 μm, N2
CapillaryOV-10170.520.3Boneva and Dimov, 1986100. m/0.27 mm/0.9 μm, N2
CapillarySqualane50.514.5Boneva and Dimov, 1986N2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane70.514.7Boneva and Dimov, 1986N2; Column length: 100. m; Column diameter: 0.25 mm
PackedSE-3042.514.Rudenko, Mal'tsev, et al., 1985Column length: 3. m
CapillaryDB-140.520.Lubeck and Sutton, 198460. m/0.264 mm/0.25 μm, H2
CapillaryHP-PONA40.520.Lubeck and Sutton, 198450. m/0.21 mm/0.5 μm, H2
CapillaryOV-150.520.Anders, Scheller, et al., 1982Column length: 55. m; Column diameter: 0.21 mm
CapillaryOV-140.519.Nijs and Jacobs, 1981He; Column length: 150. m; Column diameter: 0.50 mm
CapillarySqualane50.514.33Pacáková and Koslík, 197850. m/0.2 mm/0.5 μm, N2
PackedSqualane80.514.Chrétien and Dubois, 1977 
CapillarySqualane50.514.Chretien and Dubois, 1976 
CapillarySqualane100.526.Lulova, Leont'eva, et al., 1976He; Column length: 120. m; Column diameter: 0.25 mm
CapillarySqualane50.514.Rijks and Cramers, 1974N2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane70.514.Rijks and Cramers, 1974N2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane27.513.75Schomburg and Dielmann, 1973Column length: 100. m; Column diameter: 0.25 mm
PackedSqualane50.514.0Takács, Tálas, et al., 1972N2, Chromosorb W; Column length: 3. m
CapillarySqualane40.507.Matukuma, 1969N2; Column length: 91.4 m; Column diameter: 0.25 mm
PackedSqualane27.514.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane49.514.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane67.515.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane86.515.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane30.515.Tourres, 1967H2; Column length: 10. m
PackedSqualane50.515.Tourres, 1967H2; Column length: 10. m
PackedSE-3070.522.Widmer, 1967Diatoport S; Column length: 7.9 m
PackedSqualane26.514.Zulaïca and Guiochon, 1966Column length: 10. m
PackedApiezon L130.526.Wehrli and Kováts, 1959Celite; Column length: 2.25 m
PackedApiezon L70.527.Wehrli and Kováts, 1959Celite; Column length: 2.25 m

Kovats' RI, non-polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillaryPetrocol DH-100525.Haagen-Smit Laboratory, 1997He; Column length: 100. m; Column diameter: 0.2 mm; Program: 5C(10min) => 5C/min => 50C(48min) => 1.5C/min => 195C(91min)
CapillaryDB-1523.Hoekman, 199360. m/0.32 mm/1.0 μm, He; Program: -40 C for 12 min; -40 - 125 C at 3 deg.min; 125-185 C at 6 deg/min; 185 - 220 C at 20 deg/min; hold 220 C for 2 min

Kovats' RI, polar column, isothermal

View large format table.

Column type Active phase Temperature (C) I Reference Comment
CapillaryCarbowax 20M70.614.Annino and Villalobos, 199931.3 m/0.53 mm/0.54 μm
PackedCarbowax 20M130.573.Widmer, 1967Diatoport P; Column length: 7.9 m
PackedCarbowax 20M70.561.Widmer, 1967Diatoport P; Column length: 7.9 m

Van Den Dool and Kratz RI, non-polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-5515.8Xu, van Stee, et al., 200330. m/0.25 mm/1. μm, He, 2.5 K/min; Tstart: 50. C; Tend: 200. C
CapillaryMethyl Silicone518.6Soják, Addová, et al., 2002He, 1. K/min; Column length: 150. m; Column diameter: 0.250 mm; Tstart: 30. C; Tend: 200. C
CapillaryUltra-1520.Olson, Sinkevitch, et al., 19924. K/min; Tstart: -40. C; Tend: 230. C
CapillaryPetrocol DH513.84White, Douglas, et al., 1992100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C
CapillaryPetrocol DH514.38White, Douglas, et al., 1992100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C
CapillaryPetrocol DH514.White, Hackett, et al., 1992100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C
CapillaryHP-1520.3Bangjie, Xijian, et al., 1987N2, 10. K/min; Column length: 25. m; Column diameter: 0.2 mm; Tstart: 30. C
CapillaryHP-1519.5Bangjie, Xijian, et al., 1987N2, 2. K/min; Column length: 25. m; Column diameter: 0.2 mm; Tstart: 30. C
CapillaryHP-1520.4Bangjie, Xijian, et al., 1987N2, 30. C @ 5. min, 5. K/min; Column length: 25. m; Column diameter: 0.2 mm

Normal alkane RI, non-polar column, isothermal

View large format table.

Column type Active phase Temperature (C) I Reference Comment
CapillarySqualane40.514.2Sojak, Addova, et al., 2000He; Column length: 93. m; Column diameter: 0.25 mm
CapillarySE-5450.530.Xieyun, Maoqi, et al., 1996N2; Column length: 40. m; Column diameter: 0.25 mm
CapillaryMethyl Silicone50.514.N/AN2; Column length: 74.6 m; Column diameter: 0.28 mm
CapillarySqualane70.515.Schomburg, 1966 
PackedMethyl Silicone50.531.Huguet, 1961Nitrogen, Celite C-22; Column length: 2.5 m

Normal alkane RI, non-polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryPolydimethyl siloxane: CP-Sil 5 CB519.Bramston-Cook, 201360. m/0.25 mm/1.0 μm, Helium, 45. C @ 1.45 min, 3.6 K/min, 210. C @ 2.72 min
CapillaryPetrocol DH521.Supelco, 2012100. m/0.25 mm/0.50 μm, Helium, 20. C @ 15. min, 15. K/min, 220. C @ 30. min
CapillaryDB-5 MS498.Su, Wang, et al., 200930. m/0.25 mm/0.25 μm, Helium, 40. C @ 2. min, 4. K/min, 250. C @ 2. min
CapillaryPONA514.Zhang, Ding, et al., 200950. m/0.20 mm/0.50 μm, Nitrogen, 35. C @ 15. min, 2. K/min, 200. C @ 10. min
CapillaryOV-101522.Orav, Kailas, et al., 199950. m/0.20 mm/0.50 μm, Helium, 30. C @ 6. min, 1. K/min; Tend: 100. C
CapillarySE-54514.Guan, Li, et al., 199560. C @ 2. min, 4. K/min; Column length: 50. m; Column diameter: 0.32 mm; Tend: 200. C
CapillaryDB-1519.Ramnas, Ostermark, et al., 199450. m/0.32 mm/1.0 μm, He, 2. K/min; Tstart: -20. C
CapillaryDB-1515.Ciccioli, Cecinato, et al., 199260. m/0.32 mm/1.2 μm, He, 30. C @ 10. min, 3. K/min; Tend: 240. C

Normal alkane RI, non-polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-5 MS502.Su, Wang, et al., 200930. m/0.25 mm/0.25 μm, Helium; Program: not specified
CapillaryMethyl Silicone515.Chen and Feng, 2007Program: not specified
CapillaryMethyl Silicone521.Blunden, Aneja, et al., 200560. m/0.32 mm/1.0 μm, Helium; Program: -50 0C (2 min) 8 0C/min -> 200 0C (7.75 min) 25 0C -> 225 0C (8 min)
CapillaryPolydimethyl siloxane514.Junkes, Castanho, et al., 2003Program: not specified
CapillaryCP-Sil5 CB MS515.Tirillini, Verdelli, et al., 200050. m/0.32 mm/0.4 μm; Program: 0C (3min) => 3C/min => 50C => 5C/min => 220C (30min)
CapillaryMethyl Silicone522.Spieksma, 1999Program: not specified
CapillaryMethyl Silicone517.Zenkevich, 1999Program: not specified
CapillaryOV-1520.Zhu and He, 1999Program: not specified
CapillaryOV-1520.Zhu and He, 1999Program: not specified
CapillarySE-54523.Zhu and He, 1999Program: not specified
CapillarySE-54524.Zhu and He, 1999Program: not specified
CapillaryPolydimethyl siloxanes517.Zenkevich, 1997Program: not specified
CapillaryPolydimethyl siloxanes517.Zenkevich, Chupalov, et al., 1996Program: not specified
CapillaryMethyl Silicone517.Zenkevich, 1996Program: not specified
CapillaryDB-1514.Ciccioli, Cecinato, et al., 199460. m/0.32 mm/0.25 μm; Program: not specified
PackedSE-30525.Robinson and Odell, 1971N2, Chromosorb W; Column length: 6.1 m; Program: 50C910min) => 20C/min => 90(6min) => 10C/min => 150C(hold)

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Wiberg and Hao, 1991
Wiberg, K.B.; Hao, S., Enthalpies of hydration of alkenes. 4. Formation of acyclic tert-alcohols, J. Org. Chem., 1991, 56, 5108-5110. [all data]

Good and Smith, 1979
Good, W.D.; Smith, N.K., The enthalpies of combustion of the isomeric pentenes in the liquid state. A warning to combustion calorimetrists about sample drying, J. Chem. Thermodyn., 1979, 11, 111-118. [all data]

Scott D.W., 1949
Scott D.W., Thermodynamic properties of three isomeric pentenes, J. Am. Chem. Soc., 1949, 71, 2767-2773. [all data]

Rihko, Linnekoski, et al., 1994
Rihko, L.K.; Linnekoski, J.A.; Krause, A.O., Reaction equilibria in the synthesis of 2-methoxy-2-methylbutane and 2-ethyoxy-2-methylbutane in the liquid phase, J. Chem. Eng. Data, 1994, 39, 700-704. [all data]

Li and Stone, 1989
Li, X.; Stone, J.A., Determination of the beta silicon effect from a mass spectrometric study of the association of trimethylsilylium ion with alkenes, J. Am. Chem. Soc., 1989, 111, 15, 5586, https://doi.org/10.1021/ja00197a013 . [all data]

Serda, Izquierdo, et al., 1995
Serda, J.A.; Izquierdo, J.F.; Tejero, J.; Cunill, F.; Iborra, M., Equilibrium and thermodynamics for 2-methyl-2-methoxybutane liquid-phase decomposition, Thermochim. Acta, 1995, 259, 111-120. [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]

Radyuk, Kabo, et al., 1973
Radyuk, Z.A.; Kabo, G.Ya.; Andreevskii, D.N., Isomerization equilibrium and thermodynamic properties of methylbutenes, Neftekhimiya, 1973, 13, 356-360. [all data]

Conn, Kistiakowsky, et al., 1938
Conn, J.B.; Kistiakowsky, G.B.; Smith, E.A., Heats of organic reactions. VII. Addition of halogens to olefins, J. Am. Chem. Soc., 1938, 60, 2764-2771. [all data]

Kistiakowsky, Ruhoff, et al., 1936
Kistiakowsky, G.B.; Ruhoff, J.R.; Smith, H.A.; Vaughan, W.E., Heats of organic reactions. III. Hydrogenation of some higher olefins, J. Am. Chem. Soc., 1936, 58, 137-145. [all data]

Sharonov, Rozhnov, et al., 1995
Sharonov, K.G.; Rozhnov, A.M.; Korol'kov, A.V.; Karaseva, S.Y., Enthalpies of formation of 2-methyl-2-ethoxypropane and 2-ethyl-2-ethoxypropane from equilibrium measurements, J. Chem. Thermodyn., 1995, 27, 751-753. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Traeger, 1986
Traeger, J.C., Heat of formation for the 1-methylallyl cation by photoionization mass spectrometry, J. Phys. Chem., 1986, 90, 4114. [all data]

Bieri, Burger, et al., 1977
Bieri, G.; Burger, F.; Heilbronner, E.; Maier, J.P., Valence ionization enrgies of hydrocarbons, Helv. Chim. Acta, 1977, 60, 2213. [all data]

Masclet, Grosjean, et al., 1973
Masclet, P.; Grosjean, D.; Mouvier, G., Alkene ionization potentials. Part I. Quantitative determination of alkyl group structural effects, J. Electron Spectrosc. Relat. Phenom., 1973, 2, 225. [all data]

Lossing, 1972
Lossing, F.P., Free radicals by mass spectrometry. XLV. Ionization potentials and heats of formation of C3H3, C3H5, and C4H7 radicals and ions, Can. J. Chem., 1972, 50, 3973. [all data]

Gross and Wilkins, 1971
Gross, M.L.; Wilkins, C.L., Computer-assisted ion cyclotron resonance appearance potential measurements for C5H10 isomers, Anal. Chem., 1971, 43, 1624. [all data]

Frost and Sandhu, 1971
Frost, D.C.; Sandhu, J.S., Ionization potentials of ethylene and some methyl-substituted ethylenes as determined by photoelectron spectroscopy, Indian J. Chem., 1971, 9, 1105. [all data]

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Notes

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