Chemical Properties of Cyclobutane, methylene- (CAS 1120-56-5)

Cyclobutane, methylene-

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InChI
InChI=1S/C5H8/c1-5-3-2-4-5/h1-4H2
InChI Key
QIRVGKYPAOQVNP-UHFFFAOYSA-N
Formula
C5H8
SMILES
C=C1CCC1
Molecular Weight1
68.12
CAS
1120-56-5
Other Names
  • Methylenecyclobutane
Sources

Physical Properties

Property Value Unit Source
Δcliquid -3204.70 ± 0.50 kJ/mol NIST
Δf 100.66 kJ/mol Joback Calculated Property
Δfgas 106.00 kJ/mol NIST
Δfgas 121.50 ± 0.71 kJ/mol NIST
Δfliquid 93.85 ± 0.59 kJ/mol NIST
Δfus 2.51 kJ/mol Joback Calculated Property
Δvap 27.70 ± 0.42 kJ/mol NIST
Δvap 27.70 kJ/mol NIST
Δvap 27.70 ± 0.40 kJ/mol NIST
IE [9.12; 9.35] eV Show Hide
IE 9.19 ± 0.02 eV NIST
IE 9.14 ± 0.08 eV NIST
IE 9.12 eV NIST
IE 9.16 ± 0.02 eV NIST
IE 9.35 eV NIST
logPoct/wat 1.726 Crippen Calculated Property
Pc 4498.26 kPa Joback Calculated Property
gas 298.90 ± 1.00 J/mol×K NIST
liquid [210.20; 210.60] J/mol×K Show Hide
liquid 210.20 J/mol×K NIST
liquid 210.60 J/mol×K NIST
liquid 210.60 J/mol×K NIST
liquid 210.60 J/mol×K NIST
Tboil [308.30; 315.40] K Show Hide
Tboil 315.20 K NIST
Tboil 315.40 K NIST
Tboil 315.00 ± 2.00 K NIST
Tboil Outlier 308.30 ± 5.00 K NIST
Tboil 315.00 ± 4.00 K NIST
Tboil 315.00 ± 3.00 K NIST
Tboil 315.00 ± 2.00 K NIST
Tboil 314.90 ± 1.00 K NIST
Tboil 315.35 ± 0.30 K NIST
Tboil 315.37 ± 0.10 K NIST
Tboil 315.00 ± 4.00 K NIST
Tc 517.90 K Joback Calculated Property
Tfus 138.47 ± 0.20 K NIST
Ttriple 138.53 ± 0.01 K NIST
Ttriple 138.62 ± 0.01 K NIST
Vc 0.249 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 95.78 J/mol×K 328.64 Joback Calculated Property
Cp,liquid [131.10; 133.60] J/mol×K [298.15; 298.15] Show Hide
Cp,liquid 131.10 J/mol×K 298.15 NIST
Cp,liquid 133.60 J/mol×K 298.15 NIST
Cp,liquid 133.60 J/mol×K 298.15 NIST
Cp,liquid 133.60 J/mol×K 298.15 NIST
η 0.0002597 Pa×s 328.64 Joback Calculated Property
ΔfusH [5.76; 5.86] kJ/mol [138.50; 138.62] Show Hide
Plot of Enthalpy of fusion at a given temperature.
ΔfusH 5.86 kJ/mol 138.5 NIST
ΔfusH 5.86 kJ/mol 138.5 NIST
ΔfusH 5.75 kJ/mol 138.62 NIST
ΔfusH 5.75 kJ/mol 138.62 NIST
ΔfusH 5.76 kJ/mol 138.621 NIST
ΔvapH 29.10 kJ/mol 299.0 NIST
ΔvapH 26.10 kJ/mol 303.0 NIST
ΔfusS 41.60 J/mol×K 138.62 NIST
ΔfusS 41.60 J/mol×K 138.62 NIST
ΔfusS 41.60 J/mol×K 138.621 NIST

Molecular Descriptors

Joback and Reid Groups
=C< (ring) 1
=CH2 1
-CH2- (ring) 3

Similar Compounds

1-Butene, 2-methyl-. Butyl, 2-methylene-. 1,4-Pentadiene, 2-methyl-. 1-Pentene, 2-methyl-. Ethylidenecyclobutane. Cyclobutane, 1,2-bis(methylene)-. 1,3-Butadiene, 2-ethyl-. 1-Pentene. 1-Penten-3-yl radical. Pentane, 3-methylene-. 1,5-Hexadiene, 2-methyl-. 1,5-Hexadiene. 2-Pentene, 3-methyl-, (E)-. 2-Pentene, 3-methyl-. 1,3-Butadiene, 2,3-dimethyl-.

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Outlier This icon means that the value is more than 2 standard deviations away from the property mean.