Chemical Properties of 1,3-Cyclopentadiene, 5,5-dimethyl- (CAS 4125-18-2)

InChI

InChI=1S/C7H10/c1-7(2)5-3-4-6-7/h3-6H,1-2H3

InChI Key

QWJWPDHACGGABF-UHFFFAOYSA-N

Formula

C7H10

SMILES

CC1(C)C=CC=C1

Molecular Weight¹

94.15

CAS

4125-18-2

Other Names

• 5,5-Dimethylcyclopentadiene

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• IE : Ionization energy (eV).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔfG°	99.04	kJ/mol	Joback Calculated Property
ΔfH°gas	86.60	kJ/mol	NIST
ΔfusH°	3.97	kJ/mol	Joback Calculated Property
ΔvapH°	30.87	kJ/mol	Joback Calculated Property
IE	[8.20; 8.45]	eV
IE	8.20	eV	NIST
IE	8.22 ± 0.05	eV	NIST
IE	8.45	eV	NIST
log10WS	-2.11		Crippen Calculated Property
logPoct/wat	2.139		Crippen Calculated Property
McVol	90.030	ml/mol	McGowan Calculated Property
Pc	3940.66	kPa	Joback Calculated Property
Tboil	373.40	K	Joback Calculated Property
Tc	581.02	K	Joback Calculated Property
Tfus	204.97	K	Joback Calculated Property
Vc	0.339	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[151.22; 218.52]	J/mol×K	[373.40; 581.02]
Cp,gas	151.22	J/mol×K	373.40	Joback Calculated Property
Cp,gas	164.96	J/mol×K	408.00	Joback Calculated Property
Cp,gas	177.56	J/mol×K	442.61	Joback Calculated Property
Cp,gas	189.10	J/mol×K	477.21	Joback Calculated Property
Cp,gas	199.71	J/mol×K	511.81	Joback Calculated Property
Cp,gas	209.48	J/mol×K	546.41	Joback Calculated Property
Cp,gas	218.52	J/mol×K	581.02	Joback Calculated Property

Similar Compounds

Find more compounds similar to 1,3-Cyclopentadiene, 5,5-dimethyl-.

Sources

• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook

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