Acetylene

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Reaction thermochemistry data

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, 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
RCD - Robert C. Dunbar
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
MS - José A. Martinho Simões

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

C2H- + Hydrogen cation = Acetylene

By formula: C2H- + H+ = C2H2

Quantity Value Units Method Reference Comment
Δr1580. ± 20.kJ/molAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Δr1550. ± 20.kJ/molAVGN/AAverage of 7 values; Individual data points

COS+ + Acetylene = (COS+ • Acetylene)

By formula: COS+ + C2H2 = (COS+ • C2H2)

Quantity Value Units Method Reference Comment
Δr116.kJ/molPD/KERDGraul S.T. and Bowers, 1991gas phase; ΔrH>=; M
Δr140.kJ/molPDissOrlando, Friedman, et al., 1990gas phase; M
Δr140.kJ/molPDissOrlando, Friedman, et al., 1990gas phase; M
Δr141. ± 22.kJ/molPDissOrlando, Friedman, et al., 1990gas phase; ΔrH<; M

Cobalt ion (1+) + Acetylene = (Cobalt ion (1+) • Acetylene)

By formula: Co+ + C2H2 = (Co+ • C2H2)

Quantity Value Units Method Reference Comment
Δr180. ± 7.9kJ/molIRMPDSurya, Ranatunga, et al., 1997RCD

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
27. (+13.,-0.) CIDArmentrout and Kickel, 1994gas phase; ΔrH >=, guided ion beam CID; M

Nickel ion (1+) + Acetylene = (Nickel ion (1+) • Acetylene)

By formula: Ni+ + C2H2 = (Ni+ • C2H2)

Quantity Value Units Method Reference Comment
Δr188. ± 7.9kJ/molIRMPDSurya, Ranatunga, et al., 1997RCD

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
7. (+18.,-0.) CIDArmentrout and Kickel, 1994gas phase; ΔrH>=, guided ion beam CID; M

2Hydrogen + Acetylene = Ethane

By formula: 2H2 + C2H2 = C2H6

Quantity Value Units Method Reference Comment
Δr-312.0 ± 0.63kJ/molChydConn, Kistiakowsky, et al., 1939gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -314.1 ± 2.8 kJ/mol; At 355 K; ALS

2,5-Norbornadiene = 1,3-Cyclopentadiene + Acetylene

By formula: C7H8 = C5H6 + C2H2

Quantity Value Units Method Reference Comment
Δr117.2 ± 2.1kJ/molKinWalsh and Wells, 1975gas phase; Reanalyzed by Pedley, Naylor, et al., 1986, Original value = 118.7 ± 1.3 kJ/mol; ALS

C2Na2 (cr) + 2Water (l) = 2(Sodium hydroxide • 1418Water) (solution) + Acetylene (g)

By formula: C2Na2 (cr) + 2H2O (l) = 2(HNaO • 1418H2O) (solution) + C2H2 (g)

Quantity Value Units Method Reference Comment
Δr-161.8 ± 1.5kJ/molRSCJohnson, van Deventer, et al., 1973Please also see Pedley and Rylance, 1977.; MS

C2HCs (cr) + Water (l) = (Cesium hydroxide • 1031Water) (solution) + Acetylene (g)

By formula: C2HCs (cr) + H2O (l) = (HCsO • 1031H2O) (solution) + C2H2 (g)

Quantity Value Units Method Reference Comment
Δr-54.0 ± 0.8kJ/molRSCAder and Hubbard, 1973Please also see Pedley and Rylance, 1977.; MS

C2HNa (cr) + Water (l) = (Sodium hydroxide • 1418Water) (solution) + Acetylene (g)

By formula: C2HNa (cr) + H2O (l) = (HNaO • 1418H2O) (solution) + C2H2 (g)

Quantity Value Units Method Reference Comment
Δr-54.2 ± 0.8kJ/molRSCJohnson, van Deventer, et al., 1973Please also see Pedley and Rylance, 1977.; MS

Copper ion (1+) + Acetylene = (Copper ion (1+) • Acetylene)

By formula: Cu+ + C2H2 = (Cu+ • C2H2)

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
10. (+10.,-0.) CIDArmentrout and Kickel, 1994gas phase; ΔrH>=, guided ion beam CID; M

2Acetylene = 1-Buten-3-yne

By formula: 2C2H2 = C4H4

Quantity Value Units Method Reference Comment
Δr233.kJ/molCmReppe, Schlichting, et al., 1948liquid phase; ALS
Δr208.kJ/molCmReppe, Schlichting, et al., 1948gas phase; ALS

Rh+ + Acetylene = (Rh+ • Acetylene)

By formula: Rh+ + C2H2 = (Rh+ • C2H2)

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
129. CIDChen and Armetrout, 1995gas phase; ΔrH>=, guided ion beam CID; M

Chromium ion (1+) + Acetylene = (Chromium ion (1+) • Acetylene)

By formula: Cr+ + C2H2 = (Cr+ • C2H2)

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
184. (+20.,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Titanium ion (1+) + Acetylene = (Titanium ion (1+) • Acetylene)

By formula: Ti+ + C2H2 = (Ti+ • C2H2)

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
253. (+20.,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Lanthanum ion (1+) + Acetylene = (Lanthanum ion (1+) • Acetylene)

By formula: La+ + C2H2 = (La+ • C2H2)

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
262. (+30.,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Scandium ion (1+) + Acetylene = (Scandium ion (1+) • Acetylene)

By formula: Sc+ + C2H2 = (Sc+ • C2H2)

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
240. (+20.,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Vanadium ion (1+) + Acetylene = (Vanadium ion (1+) • Acetylene)

By formula: V+ + C2H2 = (V+ • C2H2)

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
205. (+20.,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Yttrium ion (1+) + Acetylene = (Yttrium ion (1+) • Acetylene)

By formula: Y+ + C2H2 = (Y+ • C2H2)

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
253. (+30.,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Bromine anion + Acetylene = C2H2Br-

By formula: Br- + C2H2 = C2H2Br-

Quantity Value Units Method Reference Comment
Δr36.0kJ/molLPESWild, Milley, et al., 2000gas phase; Given: 8.635±0.009 kcal/mol(0 K); B

C2Ag2 (cr) + 2(Hydrogen chloride • 12.3Water) (solution) = Acetylene (aq) + 2Silver chloride (cr)

By formula: C2Ag2 (cr) + 2(HCl • 12.3H2O) (solution) = C2H2 (aq) + 2AgCl (cr)

Quantity Value Units Method Reference Comment
Δr-77.8 ± 0.6kJ/molRSCFinch, Gardner, et al., 1991MS

(CAS Reg. No. 25012-81-1 • 4294967295Acetylene) + Acetylene = CAS Reg. No. 25012-81-1

By formula: (CAS Reg. No. 25012-81-1 • 4294967295C2H2) + C2H2 = CAS Reg. No. 25012-81-1

Quantity Value Units Method Reference Comment
Δr138.2 ± 3.0kJ/molN/AErvin, Gronert, et al., 1990gas phase; B

Aluminum ion (1+) + Acetylene = (Aluminum ion (1+) • Acetylene)

By formula: Al+ + C2H2 = (Al+ • C2H2)

Quantity Value Units Method Reference Comment
Δr54.4 ± 8.4kJ/molCIDC,EqGStockigt, Schwarz, et al., 1996Anchored to theory; RCD

Ethylene, 1,2-dichloro-, (Z)- = Acetylene + Chlorine

By formula: C2H2Cl2 = C2H2 + Cl2

Quantity Value Units Method Reference Comment
Δr21.kJ/molKinLaursen and Pimentel, 1989gas phase; Photolyses; ALS

Ethene, chloro- = Acetylene + Hydrogen chloride

By formula: C2H3Cl = C2H2 + HCl

Quantity Value Units Method Reference Comment
Δr100.7 ± 1.2kJ/molCmLacher, Gottlieb, et al., 1962gas phase; ALS

1,3-Cyclopentadiene + Acetylene = 2,5-Norbornadiene

By formula: C5H6 + C2H2 = C7H8

Quantity Value Units Method Reference Comment
Δr-117. ± 2.kJ/molEqkWalsh and Wells, 1975gas phase; ALS

C2H2+ + Acetylene = (C2H2+ • Acetylene)

By formula: C2H2+ + C2H2 = (C2H2+ • C2H2)

Quantity Value Units Method Reference Comment
Δr94.6kJ/molPIOno and Ng, 1982gas phase; M

Iron ion (1+) + Acetylene = (Iron ion (1+) • Acetylene)

By formula: Fe+ + C2H2 = (Fe+ • C2H2)

Quantity Value Units Method Reference Comment
Δr151. ± 7.9kJ/molIRMPDSurya, Ranatunga, et al., 1997RCD

(Z)-1,2-Diiodoethylene = Acetylene + Iodine

By formula: C2H2I2 = C2H2 + I2

Quantity Value Units Method Reference Comment
Δr83.3kJ/molEqkFuruyama, Golden, et al., 1968gas phase; ALS

C2H2I2 = Acetylene + Iodine

By formula: C2H2I2 = C2H2 + I2

Quantity Value Units Method Reference Comment
Δr83.3kJ/molEqkFuruyama, Golden, et al., 1968gas phase; ALS

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry data, Vibrational and/or electronic energy levels, 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:
B - John E. Bartmess
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
LL - Sharon G. Lias and Joel F. Liebman

View reactions leading to C2H2+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)11.400 ± 0.002eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)641.4kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity616.7kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
11.41 ± 0.01EIPlessis and Marmet, 1986LBLHLM
11.40PIHayaishi, Iwata, et al., 1982LBLHLM
11.4EVALRosmus, Botschwina, et al., 1981LLK
11.40PEKimura, Katsumata, et al., 1981LLK
11.40PEBieri, Schmelzer, et al., 1980LLK
11.4 ± 0.1EISuzuki and Maeda, 1978LLK
11.4 ± 0.1EISuzuki and Maeda, 1977LLK
11.40 ± 0.02PEBieri, Burger, et al., 1977LLK
~11.3EIVan Veen and Plantenga, 1976LLK
11.37 ± 0.05EIReeher, Flesch, et al., 1976LLK
11.403 ± 0.0003PECarlier, Dubois, et al., 1975LLK
11.394 ± 0.005PIParr and Taylor, 1973LLK
11.398 ± 0.005PIDibeler and Walker, 1973LLK
11.40PEBrogli, Heilbronner, et al., 1973LLK
11.39 ± 0.02EILossing, 1970RDSH
11.395 ± 0.015PIOmura, Kaneko, et al., 1969RDSH
11.39 ± 0.05EIWilliams and Hamill, 1968RDSH
11.41 ± 0.01EICollins, Winters, et al., 1968RDSH
11.40 ± 0.01PEBaker and Turner, 1968RDSH
11.400 ± 0.005PIBrehm, 1966RDSH
11.396 ± 0.003PINicholson, 1965RDSH
11.40 ± 0.02EIMelton and Hamill, 1964RDSH
11.406 ± 0.006PIDibeler and Reese, 1964RDSH
11.41 ± 0.01PIWatanabe and Namioka, 1956RDSH
11.2 ± 0.1EIKusch, Hustrulid, et al., 1937RDSH
11.41SPrice, 1935RDSH
11.49PEBieri and Asbrink, 1980Vertical value; LLK
11.43PECavell and Allison, 1978Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C+21.20 ± 0.05CH2EILocht and Davister, 1995LL
C+24. ± 1.?PICooper, Ibuki, et al., 1988LL
C+20.43 ± 0.05CH2EIPlessis and Marmet, 1986LBLHLM
C+22.5 ± 0.3C+2HEISuzuki and Maeda, 1977LLK
C+23.6?EIBloch, 1963RDSH
C+24.5 ± 1.0C+2HEIKusch, Hustrulid, et al., 1937RDSH
CH+20.85 ± 0.05CHEIDavister and Locht, 1995LL
CH+20.54 ± 0.05CHEIPlessis and Marmet, 1986LBLHLM
CH+23.9 ± 0.2C+HEIPlessis and Marmet, 1986LBLHLM
CH+24.1C+HPIHayaishi, Iwata, et al., 1982LBLHLM
CH+20.7 ± 0.1CHPIHayaishi, Iwata, et al., 1982LBLHLM
CH+20.9 ± 0.2CHEISuzuki and Maeda, 1977LLK
CH+21.5 ± 0.2CHEIKloster-Jensen, Pascual, et al., 1970RDSH
CH+21.9CHEIHaney and Franklin, 1968RDSH
CH+22.2 ± 0.5CHEIKusch, Hustrulid, et al., 1937RDSH
CH2+19.74 ± 0.20CEILocht and Davister, 1995LL
CH2+18.17 ± 0.09C-EIPlessis and Marmet, 1986LBLHLM
CH2+19.40 ± 0.12CEIPlessis and Marmet, 1986LBLHLM
CH2+19.4 ± 0.1CPIHayaishi, Iwata, et al., 1982LBLHLM
CH2+20.5 ± 0.2?EISuzuki and Maeda, 1977LLK
CH2+21.CEIFranklin and Munson, 1965RDSH
C2+19. ± 1.H2CIELReid, Ballantine, et al., 1995LL
C2+18.44 ± 0.07H2EILocht and Davister, 1995LL
C2+22.60 ± 0.122HEIPlessis and Marmet, 1986LBLHLM
C2+18.16 ± 0.05H2EIPlessis and Marmet, 1986LBLHLM
C2+18.1 ± 0.1H2PIHayaishi, Iwata, et al., 1982LBLHLM
C2+22.7 ± 0.12HPIHayaishi, Iwata, et al., 1982LBLHLM
C2+19.2 ± 0.2?EISuzuki and Maeda, 1977LLK
C2+23.62H?EIMomigny and Derouane, 1968RDSH
C2+19.5H2EIBloch, 1963RDSH
C2+23.82H?EIBloch, 1963RDSH
C2+22.72H?EIField, Franklin, et al., 1957RDSH
C2+18.2H2EIField, Franklin, et al., 1957RDSH
C2+23.3 ± 0.52H?EICoats and Anderson, 1957RDSH
C2+23.8 ± 0.32HEIKusch, Hustrulid, et al., 1937RDSH
C2H+17.35 ± 0.04HPIPECOServais and Locht, 1995LL
C2H+17.360HPIPECOWeitzel, Mahnert, et al., 1994LL
C2H+17.30 ± 0.08HEIDavister and Locht, 1994LL
C2H+17.33 ± 0.05HPIPECONorwood and Ng, 1989LL
C2H+16.70 ± 0.10HEIPlessis and Marmet, 1986LBLHLM
C2H+16.8 ± 0.1HPIHayaishi, Iwata, et al., 1982LBLHLM
C2H+16.79 ± 0.03HPIOno and Ng, 1981LLK
C2H+17.3HPIPECOEland, 1979LLK
C2H+17.5 ± 0.1HEISuzuki and Maeda, 1977LLK
C2H+17.36 ± 0.01HPIDibeler, Walker, et al., 1973LLK
C2H+17.22HPIBotter, Dibeler, et al., 1966RDSH
C2H+17.3HEIField, Franklin, et al., 1957RDSH
C2H+17.8 ± 0.2HEIKusch, Hustrulid, et al., 1937RDSH
H+18.83 ± 0.23C2HEIDavister and Locht, 1994LL
H+23. ± 1.?PICooper, Ibuki, et al., 1988LL
H+19.35 ± 0.05C2HPIShiromaru, Achiba, et al., 1987LBLHLM
H+20.6 ± 0.3?EISuzuki and Maeda, 1977LLK
H+21.7 ± 1.0C2+HEIKusch, Hustrulid, et al., 1937RDSH
H+25.6 ± 1.0CH+CEIKusch, Hustrulid, et al., 1937RDSH

De-protonation reactions

C2H- + Hydrogen cation = Acetylene

By formula: C2H- + H+ = C2H2

Quantity Value Units Method Reference Comment
Δr1580. ± 20.kJ/molAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Δr1550. ± 20.kJ/molAVGN/AAverage of 7 values; Individual data points

Vibrational and/or electronic energy levels

Go To: Top, 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: Takehiko Shimanouchi

Symmetry:   D∞h     Symmetry Number σ = 2


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

σg+ 1 CH str 3374  C  ia 3373.7 S gas
σg+ 2 CC str 1974  C  ia 1973.8 VS gas
σu+ 3 CH str 3289  B 3294.9 S gas  ia FR245)
σu+ 3 CH str 3289  B 3281.9 VS gas  ia FR245)
πg 4 CH bend 612  C  ia 611.8 VW gas
πu 5 CH bend 730  A 730.3 VS gas  ia

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
VWVery weak
iaInactive
FRFermi resonance with an overtone or a combination tone indicated in the parentheses.
A0~1 cm-1 uncertainty
B1~3 cm-1 uncertainty
C3~6 cm-1 uncertainty

Gas Chromatography

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, 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
PackedSqualane27.155.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane49.157.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane67.156.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane86.156.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm

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

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Column type Active phase I Reference Comment
CapillaryDB-1195.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

Normal alkane RI, non-polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryPetrocol DH182.Supelco, 2012100. m/0.25 mm/0.50 μm, Helium, 20. C @ 15. min, 15. K/min, 220. C @ 30. min
CapillaryOV-101176.Zenkevich, 200525. m/0.20 mm/0.10 μm, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C

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

View large format table.

Column type Active phase I Reference Comment
CapillaryMethyl Silicone156.Chen and Feng, 2007Program: not specified
CapillaryPorapack Q182.Zenkevich and Rodin, 2004Program: not specified
CapillaryMethyl Silicone155.N/AProgram: not specified
CapillarySPB-1165.Flanagan, Streete, et al., 199760. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C
CapillarySPB-1165.Strete, Ruprah, et al., 199260. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C

References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, Gas Chromatography, Notes

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

Graul S.T. and Bowers, 1991
Graul S.T.; Bowers, M.T., Dynamics of Metastable Dissociation and Photodissociation of the Gas Phase Cluster Ion (OCS.C2H2)+, J. Phys. Chem., 1991, 95, 21, 8328, https://doi.org/10.1021/j100174a055 . [all data]

Orlando, Friedman, et al., 1990
Orlando, T.M.; Friedman, A.; Maier, J.P., Photodissociation Spectroscopy of the [OCS C2H2]+ Cluster, J. Chem. Phys., 1990, 92, 12, 7365, https://doi.org/10.1063/1.458222 . [all data]

Surya, Ranatunga, et al., 1997
Surya, P.I.; Ranatunga, D.R.A.; Freiser, B.S., Infrared Multiphoton Dissociation of MC4H6+ [M=Fe, Co or Ni: C4H6=1,3-butadiene or (C2H2)(C2H4), J. Am. Chem. Soc., 1997, 119, 14, 3351, https://doi.org/10.1021/ja963200c . [all data]

Armentrout and Kickel, 1994
Armentrout, P.B.; Kickel, B.L., Gas Phase Thermochemistry of Transition Metal Ligand Systems: Reassessment of Values and Periodic Trends, in Organometallic Ion Chemistry, B. S. Freiser, ed, 1994. [all data]

Conn, Kistiakowsky, et al., 1939
Conn, J.B.; Kistiakowsky, G.B.; Smith, E.A., Heats of organic reactions. VIII. Some further hydrogenations, including those of some acetylenes, J. Am. Chem. Soc., 1939, 61, 1868-1876. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Walsh and Wells, 1975
Walsh, R.; Wells, J.M., The enthalpy of formation of bicyclo[2,2,1]hepta-2,5-diene. Thermodynamic functions of bicyclo[2,2,1]heptane and bicyclo[2,2,1]hepta-2,5-diene, J. Chem. Thermodyn., 1975, 7, 149-154. [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]

Johnson, van Deventer, et al., 1973
Johnson, G.K.; van Deventer, E.H.; Ackerman, J.P.; Hubbard, W.N.; Osborne, D.W.; Flotow, H.L., J. Chem. Thermodyn., 1973, 5, 57. [all data]

Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J., Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brigton, 1977. [all data]

Ader and Hubbard, 1973
Ader, M.; Hubbard, W.N., J. Chem. Thermodyn., 1973, 5, 607. [all data]

Reppe, Schlichting, et al., 1948
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Notes

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