Chemical Properties of 1,3-Cyclopentadiene, 5-(1-methylethylidene)- (CAS 2175-91-9)

1,3-Cyclopentadiene, 5-(1-methylethylidene)-

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InChI Key
Molecular Weight1
Other Names
  • 1,3-Cyclopentadiene, 5-isopropylidene-
  • Dimethylfulvene
  • Isopropylidenecyclopentadiene
  • 5-Isopropylidene-1,3-cyclopentadiene
  • 6,6-Dimethylfulvene
  • 5-(1-Methylethylidene)-1,3-cyclopentadiene
  • 5-Isopropylidenecyclopentadiene
  • Fulvene, 6,6-dimethyl

Physical Properties

Property Value Unit Source
Δcliquid -4667.30 ± 5.00 kJ/mol NIST
Δf 157.57 kJ/mol Joback Calculated Property
Δfgas 144.00 kJ/mol NIST
Δfus 10.80 kJ/mol Joback Calculated Property
Δvap 44.18 kJ/mol NIST
IE 8.03 eV NIST
log10WS -2.63 Crippen Calculated Property
logPoct/wat 2.449 Crippen Calculated Property
McVol 99.820 ml/mol McGowan Calculated Property
Pc 3598.56 kPa Joback Calculated Property
Inp 858.00 NIST
I 1170.00 NIST
Tboil 407.23 K Joback Calculated Property
Tc 616.65 K Joback Calculated Property
Tfus 274.05 ± 2.00 K NIST
Vc 0.382 m3/kmol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [175.95; 240.82] J/mol×K [407.23; 616.65] Show Hide
Cp,gas 175.95 J/mol×K 407.23 Joback Calculated Property
Cp,gas 188.59 J/mol×K 442.13 Joback Calculated Property
Cp,gas 200.45 J/mol×K 477.04 Joback Calculated Property
Cp,gas 211.56 J/mol×K 511.94 Joback Calculated Property
Cp,gas 221.96 J/mol×K 546.85 Joback Calculated Property
Cp,gas 231.70 J/mol×K 581.75 Joback Calculated Property
Cp,gas 240.82 J/mol×K 616.65 Joback Calculated Property

Pressure Dependent Properties

Property Value Unit Pressure (kPa) Source
Tboilr [332.50; 349.70] K [3.30; 6.70] Show Hide
Tboilr 332.50 ± 0.50 K 3.30 NIST
Tboilr 349.70 K 6.70 NIST

Similar Compounds

2,6-Dimethyl-octa-2,4,6-triene, cis. 2,4,6-Octatriene, 2,6-dimethyl-, (E,Z)-. allo- neo-Ocimene. 2,4,6-Octatriene, 2,6-dimethyl-. (4Z,6z)-2,6-dimethyl-2,4,6-octatriene. trans-Alloocimene. (4Z,6e)-2,6-dimethyl-2,4,6-octatriene. 1,3-Cyclopentadiene, 5-(1-methylpropylidene)-. 1,3,5-Cycloheptatriene-7-(2,4,6-cycloheptatrien-1-ylidene)-. 1,6-Dimethylhepta-1,3,5-triene. 2,4-Dimethyl-2,4,6-octatriene. 2,4-Hexadiene, 3-methyl-. Cosmene. 2,6-Dimethyl-1,3(E),5(Z),7-octatetraene. 2,6-Dimethyl-1,3,5,7-octatetraene, E,E-.

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