Chemical Properties of Cyclopentene, 1,5-dimethyl- (CAS 16491-15-9)

InChI

InChI=1S/C7H12/c1-6-4-3-5-7(6)2/h4,7H,3,5H2,1-2H3

InChI Key

RIICRLQIUAAOOE-UHFFFAOYSA-N

Formula

C7H12

SMILES

CC1=CCCC1C

Molecular Weight¹

96.17

CAS

16491-15-9

Other Names

• 1,2-Dimethyl-2-cyclopentene
• 1,5-Dimethylcyclopentene
• 2,3-Dimethylcyclopentene

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• η : Dynamic viscosity (Pa×s).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_vap : Vapor pressure (kPa).
• I_np : Non-polar retention indices.
• T_boil : Normal Boiling Point Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔfusH°	8.65	kJ/mol	Joback Calculated Property
logPoct/wat	2.363		Crippen Calculated Property
McVol	94.330	ml/mol	McGowan Calculated Property
Inp	[697.00; 706.00]
Inp	706.00		NIST
Inp	697.00		NIST
Inp	697.00		NIST
Tboil	[365.70; 375.20]	K
Tboil	368.64	K	KDB
Tboil	375.20	K	NIST
Tboil	365.70 ± 3.00	K	NIST
Tboil	368.90 ± 3.00	K	NIST
Tfus	[154.70; 155.15]	K
Tfus	155.15	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Tfus	154.70 ± 0.50	K	NIST

Cheméo can also estimate Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of formation at standard conditions, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, Ionization energy, 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

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[116.83; 329.42]	J/mol×K	[273.00; 1000.00]	Joback Predicted correlation
Equation			Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is Cp,gas in J/mol×K, T in K
Coefficient A			-4.18800e+01
Coefficient B			6.85040e-01
Coefficient C			-4.04640e-04
Coefficient D			9.09000e-08
Coefficient E			0.00000e+00
Temperature range, min.			273.00
Temperature range, max.			1000.00
Cp,gas	116.83	J/mol×K	273.00	Calculated Property
Cp,gas	153.85	J/mol×K	353.78	Calculated Property
Cp,gas	186.86	J/mol×K	434.56	Calculated Property
Cp,gas	216.12	J/mol×K	515.33	Calculated Property
Cp,gas	241.95	J/mol×K	596.11	Calculated Property
Cp,gas	264.61	J/mol×K	676.89	Calculated Property
Cp,gas	284.40	J/mol×K	757.67	Calculated Property
Cp,gas	301.61	J/mol×K	838.44	Calculated Property
Cp,gas	316.52	J/mol×K	919.22	Calculated Property
Cp,gas	329.42	J/mol×K	1000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0041915; 0.0002264]	Pa×s	[154.93; 403.92]	Joback Predicted correlation
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K
Coefficient A			-1.02089e+01
Coefficient B			7.33440e+02
Coefficient C			0.00000e+00
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Comment			Liquid phase. Joback/Reid (1987), valid from Tf to 0.7·Tc.
Temperature range, min.			154.93
Temperature range, max.			403.92
η	0.0041915	Pa×s	154.93	Calculated Property
η	0.0020457	Pa×s	182.59	Calculated Property
η	0.0012059	Pa×s	210.26	Calculated Property
η	0.0008038	Pa×s	237.92	Calculated Property
η	0.0005830	Pa×s	265.59	Calculated Property
η	0.0004493	Pa×s	293.26	Calculated Property
η	0.0003622	Pa×s	320.92	Calculated Property
η	0.0003021	Pa×s	348.59	Calculated Property
η	0.0002588	Pa×s	376.25	Calculated Property
η	0.0002264	Pa×s	403.92	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.66]	kPa	[272.26; 401.36]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.38619e+01
Coefficient B			-2.98264e+03
Coefficient C			-5.25280e+01
Temperature range, min.			272.26
Temperature range, max.			401.36
Pvap	1.33	kPa	272.26	Calculated Property
Pvap	3.06	kPa	286.60	Calculated Property
Pvap	6.39	kPa	300.95	Calculated Property
Pvap	12.32	kPa	315.29	Calculated Property
Pvap	22.16	kPa	329.64	Calculated Property
Pvap	37.65	kPa	343.98	Calculated Property
Pvap	60.84	kPa	358.33	Calculated Property
Pvap	94.19	kPa	372.67	Calculated Property
Pvap	140.45	kPa	387.02	Calculated Property
Pvap	202.66	kPa	401.36	Calculated Property

Similar Compounds

Find more compounds similar to Cyclopentene, 1,5-dimethyl-.

Sources

• Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) ChEDL chemicals 1.5.2, from Bradley, J.-C.; Williams, A.; Lang, A. Jean-Claude Bradley Open Melting Point Dataset. Figshare, 2014 (CC0).
• Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
• Crippen Method
• Crippen Method
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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