Chemical Properties of Cyclopentene, 1,2-dimethyl- (CAS 765-47-9)

InChI

InChI=1S/C7H12/c1-6-4-3-5-7(6)2/h3-5H2,1-2H3

InChI Key

SZZWLAZADBEDQP-UHFFFAOYSA-N

Formula

C7H12

SMILES

CC1=C(C)CCC1

Molecular Weight¹

96.17

CAS

765-47-9

Other Names

• 1,2-Dimethylcyclopentene
• 1,2-dimethyl-1-cyclopentene

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• η : Dynamic viscosity (Pa×s).
• 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).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• 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).
• P_vap : Vapor pressure (kPa).
• I_np : Non-polar retention indices.
• 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
PAff	822.60	kJ/mol	NIST
BasG	791.90	kJ/mol	NIST
ΔfG°	63.02	kJ/mol	Joback Calculated Property
ΔfH°gas	-41.40	kJ/mol	NIST
ΔfusH°	7.19	kJ/mol	Joback Calculated Property
ΔvapH°	33.36	kJ/mol	Joback Calculated Property
log10WS	-2.50		Crippen Calculated Property
logPoct/wat	2.507		Crippen Calculated Property
McVol	94.330	ml/mol	McGowan Calculated Property
Pc	3581.35	kPa	Joback Calculated Property
Inp	[710.00; 774.00]
Inp	774.00		NIST
Inp	764.00		NIST
Inp	741.00		NIST
Inp	743.00		NIST
Inp	745.00		NIST
Inp	751.00		NIST
Inp	710.00		NIST
Tboil	[366.40; 379.00]	K
Tboil	378.18	K	KDB
Tboil	379.00	K	NIST
Tboil	377.80 ± 2.00	K	NIST
Tboil	376.00 ± 6.00	K	NIST
Tboil	Outlier 366.40 ± 1.00	K	NIST
Tboil	375.70 ± 2.00	K	NIST
Tboil	378.95 ± 0.30	K	NIST
Tboil	378.30 ± 2.00	K	NIST
Tboil	378.18 ± 0.40	K	NIST
Tboil	376.70 ± 3.00	K	NIST
Tc	588.63	K	Joback Calculated Property
Tfus	182.75 ± 0.50	K	NIST
Vc	0.355	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[166.06; 233.33]	J/mol×K	[388.63; 588.63]
Cp,gas	166.06	J/mol×K	388.63	Joback Calculated Property
Cp,gas	178.72	J/mol×K	421.96	Joback Calculated Property
Cp,gas	190.78	J/mol×K	455.30	Joback Calculated Property
Cp,gas	202.24	J/mol×K	488.63	Joback Calculated Property
Cp,gas	213.15	J/mol×K	521.96	Joback Calculated Property
Cp,gas	223.50	J/mol×K	555.30	Joback Calculated Property
Cp,gas	233.33	J/mol×K	588.63	Joback Calculated Property
η	[0.0002610; 0.0020148]	Pa×s	[209.59; 388.63]
η	0.0020148	Pa×s	209.59	Joback Calculated Property
η	0.0011590	Pa×s	239.43	Joback Calculated Property
η	0.0007537	Pa×s	269.27	Joback Calculated Property
η	0.0005340	Pa×s	299.11	Joback Calculated Property
η	0.0004028	Pa×s	328.95	Joback Calculated Property
η	0.0003184	Pa×s	358.79	Joback Calculated Property
η	0.0002610	Pa×s	388.63	Joback Calculated Property
ΔvapH	36.40	kJ/mol	362.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.63]	kPa	[275.02; 401.36]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.41360e+01
Coefficient B			-3.07332e+03
Coefficient C			-5.30930e+01
Temperature range, min.			275.02
Temperature range, max.			401.36
Pvap	1.33	kPa	275.02	Calculated Property
Pvap	3.04	kPa	289.06	Calculated Property
Pvap	6.31	kPa	303.10	Calculated Property
Pvap	12.14	kPa	317.13	Calculated Property
Pvap	21.85	kPa	331.17	Calculated Property
Pvap	37.16	kPa	345.21	Calculated Property
Pvap	60.19	kPa	359.25	Calculated Property
Pvap	93.47	kPa	373.28	Calculated Property
Pvap	139.88	kPa	387.32	Calculated Property
Pvap	202.63	kPa	401.36	Calculated Property

Similar Compounds

Find more compounds similar to Cyclopentene, 1,2-dimethyl-.

Sources

• Crippen Method
• Crippen Method
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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