Chemical Properties of Tetracyanoethylene (CAS 670-54-2)

Tetracyanoethylene

InChI
InChI=1S/C6N4/c7-1-5(2-8)6(3-9)4-10
InChI Key
NLDYACGHTUPAQU-UHFFFAOYSA-N
Formula
C6N4
SMILES
N#CC(C#N)=C(C#N)C#N
Molecular Weight1
128.09
CAS
670-54-2
Other Names
  • Ethenetetracarbonitrile
  • «delta»2,2'-Bimalononitrile
  • Ethene, tetracyano-
  • Ethylenetetracarbonitrile
  • Tetracyanoethene
  • TCNE
  • (NC)2CC(CN)2
  • Tetrakyanethylen
  • 1,1,2,2-Tetracyanoethene
  • 1,1,2,2-Tetracyanoethylene
  • Ethylene, tetracyano-
  • 1,1,2,2-Ethenetetracarbonitrile
  • NSC 24833
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Physical Properties

Property Value Unit Source
ω 0.5309 Relay (1.0) Calculated Property
ΔcH°solid [-3033.30; -2985.00] kJ/mol Show Hide
ΔcH°solid -2996.00 ± 2.00 kJ/mol NIST
ΔcH°solid -3033.30 kJ/mol NIST
ΔcH°solid -2985.00 ± 2.00 kJ/mol NIST
EA [1.70; 3.17] eV Show Hide
EA 3.16 ± 0.02 eV NIST
EA 3.17 ± 0.20 eV NIST
EA 2.30 ± 0.30 eV NIST
EA 1.70 ± 0.30 eV NIST
EA 2.03 ± 0.05 eV NIST
EA 2.88 ± 0.06 eV NIST
ΔfG° 595.48 kJ/mol Joback Calculated Property
ΔfH°gas [688.10; 714.00] kJ/mol Show Hide
ΔfH°gas 688.10 kJ/mol NIST
ΔfH°gas 714.00 kJ/mol NIST
ΔfH°gas 705.00 ± 6.30 kJ/mol NIST
ΔfH°solid [607.10; 633.00] kJ/mol Show Hide
ΔfH°solid 607.10 kJ/mol NIST
ΔfH°solid 633.00 ± 2.00 kJ/mol NIST
ΔfH°solid 624.00 ± 2.00 kJ/mol NIST
ΔfusH° 14.90 kJ/mol Joback Calculated Property
ΔsubH° [81.00; 81.20] kJ/mol Show Hide
ΔsubH° 81.20 kJ/mol NIST
ΔsubH° 81.00 kJ/mol NIST
ΔvapH° 48.82 kJ/mol Relay (1.0) Calculated Property
IE [11.67; 11.79] eV Show Hide
IE 11.77 ± 0.01 eV NIST
IE 11.67 ± 0.02 eV NIST
IE 11.79 ± 0.05 eV NIST
logPoct/wat 0.377 Crippen Calculated Property
McVol 96.620 ml/mol McGowan Calculated Property
Pc 2979.54 kPa Joback Calculated Property
Tboil 496.20 K NIST
Tc 683.15 K Relay (1.0) Calculated Property
Tfus 472.00 ± 0.20 K NIST

Cheméo can also estimate Critical Volume, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [187.50; 203.69] J/mol×K [749.12; 1000.37] Show Hide
Cp,gas 187.50 J/mol×K 749.12 Joback Calculated Property
Cp,gas 190.62 J/mol×K 791.00 Joback Calculated Property
Cp,gas 193.52 J/mol×K 832.87 Joback Calculated Property
Cp,gas 196.25 J/mol×K 874.75 Joback Calculated Property
Cp,gas 198.82 J/mol×K 916.62 Joback Calculated Property
Cp,gas 201.29 J/mol×K 958.50 Joback Calculated Property
Cp,gas 203.69 J/mol×K 1000.37 Joback Calculated Property
ΔfusH [24.92; 24.92] kJ/mol [472.20; 472.20] Show Hide
ΔfusH 24.92 kJ/mol 472.20 NIST
ΔfusH 24.92 kJ/mol 472.20 NIST
ΔsubH [81.20; 84.30] kJ/mol [301.00; 352.00] Show Hide
ΔsubH 84.30 kJ/mol 301.00 NIST
ΔsubH 81.20 ± 5.90 kJ/mol 350.00 NIST
ΔsubH 81.40 kJ/mol 352.00 NIST

Similar Compounds

Propanedinitrile, methylene-. Propanedinitrile. Fumaronitrile. Propanedinitrile, dichloro-. 2-Propenenitrile, 2,3,3-trifluoro-. Methylacrylonitrile. Senecionitrile. 2-Propenenitrile, 2-chloro-. 2,2=Difluoropropenenitrile. 2-Propenenitrile. 2-Butene, 2,3-dimethyl-. 2-Cyanoethyl radical. 1-Fluoropropenenitrile. Methylidyne, cyano-. 2-Propenenitrile, 3-chloro-2-methyl-.

Find more compounds similar to Tetracyanoethylene.

Sources

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