Ethylene

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Henry's Law 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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas52.47kJ/molReviewChase, 1998Data last reviewed in September, 1965
Δfgas52.4 ± 0.5kJ/molReviewManion, 2002adopted recommendation of Gurvich, Veyts, et al., 1991; DRB
Quantity Value Units Method Reference Comment
Δcgas-1411.20 ± 0.30kJ/molCmRossini and Knowlton, 1937Reanalyzed by Cox and Pilcher, 1970, Original value = -1410.97 ± 0.30 kJ/mol; Corresponding Δfgas = 52.52 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
gas,1 bar219.32J/mol*KReviewChase, 1998Data last reviewed in September, 1965

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
33.2650.Thermodynamics Research Center, 1997p=1 bar. Recommended entropies and heat capacities are in good agreement with those obtained from other statistical thermodynamics calculations [ Chao J., 1975, Gurvich, Veyts, et al., 1989] as well as with ab initio value of S(298.15 K)=219.14 J/mol*K [ East A.L.L., 1997].; GT
33.27100.
33.66150.
35.37200.
40.60273.15
42.90298.15
43.08300.
53.06400.
62.48500.
70.66600.
77.70700.
83.82800.
89.18900.
93.881000.
98.001100.
101.611200.
104.761300.
107.531400.
109.961500.
114.811750.
118.372000.
121.032250.
123.062500.
124.622750.
125.863000.

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
34.66 ± 0.26178.15Burcik E.J., 1941Other experimental values of heat capacity [ Haas M.E., 1932] are less accurate, see [ Chao J., 1975]. Please also see Eucken A., 1933.; GT
35.30 ± 0.26192.35
36.29 ± 0.27210.40
37.55 ± 0.28230.90
39.02 ± 0.29250.60
40.75 ± 0.02270.7
41.02 ± 0.31271.80
42.84 ± 0.32293.45
43.47 ± 0.17300.0
45.98 ± 0.04320.7
49.74 ± 0.37367.7
59.25 ± 0.44463.6

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 1200.1200. to 6000.
A -6.387880106.5104
B 184.401913.73260
C -112.9718-2.628481
D 28.495930.174595
E 0.315540-26.14469
F 48.17332-35.36237
G 163.1568275.0424
H 52.4669452.46694
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1965 Data last reviewed in September, 1965

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Henry's Law 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: Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
liquid117.8J/mol*KN/AChao, Hall, et al., 1983 

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
67.4170.Chao, Hall, et al., 1983T = 16 to 169 K.
67.24170.Egan and Kemp, 1937T = 15 to 170 K.

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Henry's Law 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 as indicated in comments:
B - John E. Bartmess
MS - José A. Martinho Simões
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

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.

Reactions 1 to 50

C2H3- + Hydrogen cation = Ethylene

By formula: C2H3- + H+ = C2H4

Quantity Value Units Method Reference Comment
Δr1704. ± 9.kJ/molAVGN/AAverage of 5 out of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Δr1677.8 ± 2.1kJ/molIMREErvin, Gronert, et al., 1990gas phase; B
Δr1670. ± 8.8kJ/molH-TSDePuy, Gronert, et al., 1989gas phase; B
Δr1668. ± 21.kJ/molH-TSPeerboom, Rademaker, et al., 1992gas phase; B
Δr>1661.0kJ/molIMRBFroelicher, Freiser, et al., 1986gas phase; B

C7H4CrO5 (g) = C5CrO5 (g) + Ethylene (g)

By formula: C7H4CrO5 (g) = C5CrO5 (g) + C2H4 (g)

Quantity Value Units Method Reference Comment
Δr105. ± 4.kJ/molKinGMcNamara, Becher, et al., 1994The reaction enthalpy was identified with the activation energy.; MS
Δr103. ± 10.kJ/molKinGWells, House, et al., 1994The reaction enthalpy relies on the measured activation energy and on the assumption of a negligible barrier for product recombination Wells, House, et al., 1994.; MS

Silver ion (1+) + Ethylene = (Silver ion (1+) • Ethylene)

By formula: Ag+ + C2H4 = (Ag+ • C2H4)

Quantity Value Units Method Reference Comment
Δr141.kJ/molHPMSGuo and Castleman, 1991gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr92.5J/mol*KN/AGuo and Castleman, 1991gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
71.5750.HPMSGuo and Castleman, 1991gas phase; Entropy change calculated or estimated; M

NH4+ + Ethylene = (NH4+ • Ethylene)

By formula: H4N+ + C2H4 = (H4N+ • C2H4)

Quantity Value Units Method Reference Comment
Δr42.kJ/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr84.J/mol*KN/ADeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
15.294.PHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; Entropy change calculated or estimated; M

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

By formula: Co+ + C2H4 = (Co+ • C2H4)

Quantity Value Units Method Reference Comment
Δr186. ± 9.2kJ/molCIDTSievers, Jarvis, et al., 1998RCD

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
179. (+7.1,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M
27. (+13.,-0.) CIDHaynes and Armentrout, 1994gas phase; ΔrH>=, guided ion beam CID; M

Ethyl Chloride = Ethylene + Hydrogen chloride

By formula: C2H5Cl = C2H4 + HCl

Quantity Value Units Method Reference Comment
Δr92.0kJ/molEqkLevanova, Bushneva, et al., 1979liquid phase; ALS
Δr71.5kJ/molEqkLevanova, Bushneva, et al., 1979gas phase; ALS
Δr72.6 ± 2.1kJ/molEqkHowlett, 1955gas phase; ALS
Δr71.5kJ/molEqkLane, Linnett, et al., 1953gas phase; ALS

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

By formula: Cr+ + C2H4 = (Cr+ • C2H4)

Quantity Value Units Method Reference Comment
Δr96. ± 11.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
125. (+19.,-0.) CIDArmentrout and Kickel, 1994gas phase; ΔrH>=, guided ion beam CID; M

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

By formula: Ni+ + C2H4 = (Ni+ • C2H4)

Quantity Value Units Method Reference Comment
Δr182. ± 11.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
138. (+19.,-0.) CIDArmentrout and Kickel, 1994gas phase; ΔrH>=, guided ion beam CID; M

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

By formula: Cu+ + C2H4 = (Cu+ • C2H4)

Quantity Value Units Method Reference Comment
Δr176. ± 14.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
95. (+11.,-0.) CIDArmentrout and Kickel, 1994gas phase; ΔrH>=, guided ion beam CID; M

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

By formula: Sc+ + C2H4 = (Sc+ • C2H4)

Quantity Value Units Method Reference Comment
Δr220. ± 10.kJ/molPDissRanashinge and Freiser, 1992gas phase; M

Enthalpy of reaction

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

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

By formula: La+ + C2H4 = (La+ • C2H4)

Quantity Value Units Method Reference Comment
Δr220. ± 10.kJ/molPDissRanashinge and Freiser, 1992gas phase; M

Enthalpy of reaction

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

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

By formula: Y+ + C2H4 = (Y+ • C2H4)

Quantity Value Units Method Reference Comment
Δr220. ± 10.kJ/molPDissRanashinge and Freiser, 1992gas phase; M

Enthalpy of reaction

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

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

By formula: Ti+ + C2H4 = (Ti+ • C2H4)

Quantity Value Units Method Reference Comment
Δr146. ± 11.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

Enthalpy of reaction

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

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

By formula: V+ + C2H4 = (V+ • C2H4)

Quantity Value Units Method Reference Comment
Δr125. ± 7.9kJ/molCIDTSievers, Jarvis, et al., 1998RCD

Enthalpy of reaction

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

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

By formula: Fe+ + C2H4 = (Fe+ • C2H4)

Quantity Value Units Method Reference Comment
Δr145. ± 11.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
145. (+5.9,-0.) CIDArmentrout and Kickel, 1994gas phase; guided ion beam CID; M

Ethylene + Bromine = Ethane, 1,2-dibromo-

By formula: C2H4 + Br2 = C2H4Br2

Quantity Value Units Method Reference Comment
Δr-120.9 ± 1.3kJ/molCmConn, Kistiakowsky, et al., 1938gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -121.6 ± 1.3 kJ/mol; At 355 °K; ALS

Ethylene + Iodine = Ethane, 1,2-diiodo-

By formula: C2H4 + I2 = C2H4I2

Quantity Value Units Method Reference Comment
Δr-48.1 ± 0.8kJ/molEqkAbrams and Davis, 1954gas phase; ALS
Δr-56. ± 2.kJ/molEqkCutherbertson and Kistiakowsky, 1935gas phase; Heat of dissociation; ALS

(Silver ion (1+) • Ethylene) + Ethylene = (Silver ion (1+) • 2Ethylene)

By formula: (Ag+ • C2H4) + C2H4 = (Ag+ • 2C2H4)

Quantity Value Units Method Reference Comment
Δr136.kJ/molHPMSGuo and Castleman, 1991gas phase; M
Quantity Value Units Method Reference Comment
Δr126.J/mol*KHPMSGuo and Castleman, 1991gas phase; M

Hydrogen + Ethylene = Ethane

By formula: H2 + C2H4 = C2H6

Quantity Value Units Method Reference Comment
Δr-136. ± 2.kJ/molChydKistiakowsky and Nickle, 1951gas phase; ALS
Δr-136.3 ± 0.3kJ/molChydKistiakowsky, Romeyn, et al., 1935gas phase; ALS

Ethyl bromide = Hydrogen bromide + Ethylene

By formula: C2H5Br = HBr + C2H4

Quantity Value Units Method Reference Comment
Δr80.3 ± 2.1kJ/molEqkLane, Linnett, et al., 1953gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = 79.9 kJ/mol; ALS

C3H9Si+ + Ethylene = (C3H9Si+ • Ethylene)

By formula: C3H9Si+ + C2H4 = (C3H9Si+ • C2H4)

Quantity Value Units Method Reference Comment
Δr98.7kJ/molPHPMSLi and Stone, 1989gas phase; M
Quantity Value Units Method Reference Comment
Δr161.J/mol*KPHPMSLi and Stone, 1989gas phase; M

C2H4+ + Ethylene = (C2H4+ • Ethylene)

By formula: C2H4+ + C2H4 = (C2H4+ • C2H4)

Quantity Value Units Method Reference Comment
Δr66.1kJ/molPIOno, Linn, et al., 1984gas phase; M
Δr76.1kJ/molPICeyer, Tiedemann, et al., 1979gas phase; M

C6H4FeO4 (l) = 4Carbon monoxide (g) + iron (cr) + Ethylene (g)

By formula: C6H4FeO4 (l) = 4CO (g) + Fe (cr) + C2H4 (g)

Quantity Value Units Method Reference Comment
Δr192.5 ± 8.4kJ/molHAL-HFCBrown, Connor, et al., 1976MS
Δr185.4kJ/molTD-HFCBrown, Connor, et al., 1976MS

Bicyclo[2.2.2]oct-2-ene = 1,3-Cyclohexadiene + Ethylene

By formula: C8H12 = C6H8 + C2H4

Quantity Value Units Method Reference Comment
Δr136.kJ/molKinHuybrechts, Rigaux, et al., 1980gas phase; Diels-Alder addition at 560°K, see Van Mele, Boon, et al., 1986; ALS

Fluorine anion + Ethylene = (Fluorine anion • Ethylene)

By formula: F- + C2H4 = (F- • C2H4)

Quantity Value Units Method Reference Comment
Δr25. ± 13.kJ/molIMRBSullivan and Beauchamp, 1976gas phase; Structure: Roy and McMahon, 1985; B

Rh+ + Ethylene = (Rh+ • Ethylene)

By formula: Rh+ + C2H4 = (Rh+ • C2H4)

Enthalpy of reaction

ΔrH° (kJ/mol) T (K) Method Reference Comment
161. (+3.,-0.) CIDChen and Armetrout, 1995gas phase; guided ion beam CID; M

C7H9Cl2NPd (solution) + 1,3-Diazine (l) = (PdCl2(C5H5N)2) (solution) + Ethylene (solution)

By formula: C7H9Cl2NPd (solution) + C4H4N2 (l) = (PdCl2(C5H5N)2) (solution) + C2H4 (solution)

Quantity Value Units Method Reference Comment
Δr-57.7 ± 1.7kJ/molRSCPartenheimer and Durham, 1974solvent: Dichloromethane; MS

Rhodium, bis(η2-ethene)(2,4-pentanedionato-O,O')- (solution) + 1,5-Cyclooctadiene, (Z,Z)- (solution) = C13H19O2Rh (solution) + 2Ethylene (solution)

By formula: C9H15O2Rh (solution) + C8H12 (solution) = C13H19O2Rh (solution) + 2C2H4 (solution)

Quantity Value Units Method Reference Comment
Δr-9.0 ± 0.4kJ/molRSCJesse, Cordfunke, et al., 1979solvent: n-Heptane; MS

Hydrogen bromide (g) + C2H3BrMg (solution) = Ethylene (solution) + Br2Mg (solution)

By formula: HBr (g) + C2H3BrMg (solution) = C2H4 (solution) + Br2Mg (solution)

Quantity Value Units Method Reference Comment
Δr-294.1 ± 2.2kJ/molRSCHolm, 1981solvent: Tetrahydrofuran; MS

C6HCrO6+ + Ethylene = (C6HCrO6+ • Ethylene)

By formula: C6HCrO6+ + C2H4 = (C6HCrO6+ • C2H4)

Quantity Value Units Method Reference Comment
Δr59.8 ± 5.0kJ/molICRCDHop and McMahon, 1991gas phase; Ar collision gas; M

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

By formula: Al+ + C2H4 = (Al+ • C2H4)

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

(CAS Reg. No. 25013-41-6 • 4294967295Ethylene) + Ethylene = CAS Reg. No. 25013-41-6

By formula: (CAS Reg. No. 25013-41-6 • 4294967295C2H4) + C2H4 = CAS Reg. No. 25013-41-6

Quantity Value Units Method Reference Comment
Δr54.0 ± 8.8kJ/molN/ADePuy, Gronert, et al., 1989gas phase; B

Hydrogen + Ethene, chloro- = Ethylene + Hydrogen chloride

By formula: H2 + C2H3Cl = C2H4 + HCl

Quantity Value Units Method Reference Comment
Δr-76.94kJ/molChydLacher, Kianpour, et al., 1956gas phase; At 298 K; ALS

Ethylene + Chlorine = Ethane, 1,2-dichloro-

By formula: C2H4 + Cl2 = C2H4Cl2

Quantity Value Units Method Reference Comment
Δr-182.6 ± 0.63kJ/molCmConn, Kistiakowsky, et al., 1938gas phase; At 355 °K; ALS

Ethane, 1-chloro-2-iodo- = Iodine atom + Chlorine atom + Ethylene

By formula: C2H4ClI = I + Cl + C2H4

Quantity Value Units Method Reference Comment
Δr320. ± 4.2kJ/molKinMinton, Felder, et al., 1984gas phase; ALS

(C2H4+ • Ethylene) + Ethylene = (C2H4+ • 2Ethylene)

By formula: (C2H4+ • C2H4) + C2H4 = (C2H4+ • 2C2H4)

Quantity Value Units Method Reference Comment
Δr18.kJ/molPICeyer, Tiedemann, et al., 1979gas phase; M

C12H14Mo (cr) + Iodine (cr) = C10H10I2Mo (cr) + Ethylene (g)

By formula: C12H14Mo (cr) + I2 (cr) = C10H10I2Mo (cr) + C2H4 (g)

Quantity Value Units Method Reference Comment
Δr-163.0 ± 2.1kJ/molRSCCalhorda, Carrondo, et al., 1991MS

Rhodium, bis(η2-ethene)(2,4-pentanedionato-O,O')- (cr) + 2Carbon monoxide (g) = Rhodium, dicarbonyl(2,4-pentanedionato-O,O')-, (SP-4-2)- (cr) + 2Ethylene (g)

By formula: C9H15O2Rh (cr) + 2CO (g) = C7H7O4Rh (cr) + 2C2H4 (g)

Quantity Value Units Method Reference Comment
Δr-53.6 ± 1.7kJ/molDSCJesse, Baks, et al., 1978MS

C9H15IrO2 (cr) + 2Carbon monoxide (g) = C7H7IrO4 (cr) + 2Ethylene (g)

By formula: C9H15IrO2 (cr) + 2CO (g) = C7H7IrO4 (cr) + 2C2H4 (g)

Quantity Value Units Method Reference Comment
Δr-74.1 ± 4.6kJ/molDSCJesse, Baks, et al., 1978MS

(Iron ion (1+) • Ethylene) + Ethylene = (Iron ion (1+) • 2Ethylene)

By formula: (Fe+ • C2H4) + C2H4 = (Fe+ • 2C2H4)

Quantity Value Units Method Reference Comment
Δr151. ± 15.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

(Chromium ion (1+) • Ethylene) + Ethylene = (Chromium ion (1+) • 2Ethylene)

By formula: (Cr+ • C2H4) + C2H4 = (Cr+ • 2C2H4)

Quantity Value Units Method Reference Comment
Δr108. ± 11.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

(Manganese ion (1+) • Ethylene) + Ethylene = (Manganese ion (1+) • 2Ethylene)

By formula: (Mn+ • C2H4) + C2H4 = (Mn+ • 2C2H4)

Quantity Value Units Method Reference Comment
Δr88. ± 14.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

(Vanadium ion (1+) • Ethylene) + Ethylene = (Vanadium ion (1+) • 2Ethylene)

By formula: (V+ • C2H4) + C2H4 = (V+ • 2C2H4)

Quantity Value Units Method Reference Comment
Δr127. ± 14.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

(Nickel ion (1+) • Ethylene) + Ethylene = (Nickel ion (1+) • 2Ethylene)

By formula: (Ni+ • C2H4) + C2H4 = (Ni+ • 2C2H4)

Quantity Value Units Method Reference Comment
Δr173. ± 14.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

(Cobalt ion (1+) • Ethylene) + Ethylene = (Cobalt ion (1+) • 2Ethylene)

By formula: (Co+ • C2H4) + C2H4 = (Co+ • 2C2H4)

Quantity Value Units Method Reference Comment
Δr152. ± 14.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

(Copper ion (1+) • Ethylene) + Ethylene = (Copper ion (1+) • 2Ethylene)

By formula: (Cu+ • C2H4) + C2H4 = (Cu+ • 2C2H4)

Quantity Value Units Method Reference Comment
Δr174. ± 13.kJ/molCIDTSievers, Jarvis, et al., 1998RCD

2-Norbornene = 1,3-Cyclopentadiene + Ethylene

By formula: C7H10 = C5H6 + C2H4

Quantity Value Units Method Reference Comment
Δr97.2 ± 2.5kJ/molEqkWalsh and Wells, 1976gas phase; ALS

2Ethylene = Cyclobutane

By formula: 2C2H4 = C4H8

Quantity Value Units Method Reference Comment
Δr-86.6 ± 4.2kJ/molEqkQuick, Knecht, et al., 1972gas phase; At 750 K; ALS

Ethane, 1,2-diiodo- = Ethylene + Iodine

By formula: C2H4I2 = C2H4 + I2

Quantity Value Units Method Reference Comment
Δr48.1 ± 0.8kJ/molEqkBenson and Amano, 1962gas phase; ALS

2-Butene, (E)- + Ethylene = cyclobutane, 1,2-dimethyl-, trans-

By formula: C4H8 + C2H4 = C6H12

Quantity Value Units Method Reference Comment
Δr-69.9kJ/molEqkScacchi and Back, 1977liquid phase; ALS

Henry's Law data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry 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: Rolf Sander

Henry's Law constant (water solution)

kH(T) = H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)

H (mol/(kg*bar)) d(ln(kH))/d(1/T) (K) Method Reference Comment
0.0048 QN/A missing citation give several references for the Henry's law constants but don't assign them to specific species.
0.0049 QN/ASeveral references are given in the list of Henry's law constants but not assigned to specific species.
0.0047 LN/A 
0.00471800.LN/A 
0.0047 VN/A 
0.0049 XN/AThe value is taken from the compilation of solubilities by W. Asman (unpublished).

Vibrational and/or electronic energy levels

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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: Takehiko Shimanouchi

Symmetry:   D2h     Symmetry Number σ = 4


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

ag 1 CH2 s-str 3026  B  ia 3026.4 p gas
ag 2 CC str 1623  D  ia 1622.6 p gas FR(2ν10)
ag 3 CH2 scis 1342  B  ia 1342.2 p gas
au 4 CH2 twist 1023  E  ia  ia OC46)
b1g 5 CH2 a-str 3103  B  ia 3102.5 dp gas
b1g 6 CH2 rock 1236  C  ia 1236 dp liq.
b1u 7 CH2 wag 949  A 949.3 M gas  ia
b2g 8 CH2 wag 943  C  ia 943 dp liq.
b2u 9 CH2 a-str 3106  B 3105.5 S gas  ia
b2u 10 CH2 rock 826  A 826.0 W gas  ia
b3u 11 CH2 s-str 2989  A 2988.66 S gas  ia
b3u 12 CH2 scis 1444  B 1443.5 S gas  ia

Source: Shimanouchi, 1972

Notes

SStrong
MMedium
WWeak
iaInactive
pPolarized
dpDepolarized
FRFermi resonance with an overtone or a combination tone indicated in the parentheses.
OCFrequency estimated from 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
D6~15 cm-1 uncertainty
E15~30 cm-1 uncertainty

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Henry's Law data, Vibrational and/or electronic energy levels, Notes

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

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Notes

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