Chemical Properties of 2-Pentene, 3,4-dimethyl-, (Z)- (CAS 4914-91-4)

InChI

InChI=1S/C7H14/c1-5-7(4)6(2)3/h5-6H,1-4H3/b7-5-

InChI Key

PPBWEVVDSRKEIK-ALCCZGGFSA-N

Formula

C7H14

SMILES

CC=C(C)C(C)C

Molecular Weight¹

98.19

CAS

4914-91-4

Other Names

• (2Z)-3,4-Dimethyl-2-pentene
• (Z)-(CH3)2C=CHCH(CH3)2
• (Z)-3,4-DIMETHYL-2-PENTENE
• 3,4-DIMETHYL-CIS-2-PENTENE
• 3,4-Dimethyl-2-pentene (cis)
• CIS-3,4-DIMETHYL-2-PENTENE

• 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).
• 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
ΔfG°	77.29	kJ/mol	Joback Calculated Property
ΔfH°gas	-85.66	kJ/mol	Joback Calculated Property
ΔfusH°	9.25	kJ/mol	Joback Calculated Property
ΔvapH°	34.70	kJ/mol	NIST
log10WS	-2.36		Crippen Calculated Property
logPoct/wat	2.609		Crippen Calculated Property
McVol	105.190	ml/mol	McGowan Calculated Property
Pc	3002.44	kPa	Joback Calculated Property
Inp	[669.40; 680.80]
Inp	678.90		NIST
Inp	669.40		NIST
Inp	676.00		NIST
Inp	677.00		NIST
Inp	678.00		NIST
Inp	676.70		NIST
Inp	677.70		NIST
Inp	670.90		NIST
Inp	671.70		NIST
Inp	678.00		NIST
Inp	679.00		NIST
Inp	679.00		NIST
Inp	669.70		NIST
Inp	670.30		NIST
Inp	670.30		NIST
Inp	672.50		NIST
Inp	671.00		NIST
Inp	673.40		NIST
Inp	670.40		NIST
Inp	672.40		NIST
Inp	672.40		NIST
Inp	671.00		NIST
Inp	672.00		NIST
Inp	672.00		NIST
Inp	670.00		NIST
Inp	679.40		NIST
Inp	680.80		NIST
Inp	669.90		NIST
Inp	671.00		NIST
Inp	670.00		NIST
Inp	680.00		NIST
Inp	673.00		NIST
Inp	677.00		NIST
Inp	679.00		NIST
Inp	672.00		NIST
Inp	678.00		NIST
Inp	669.90		NIST
Inp	680.00		NIST
Inp	672.00		NIST
Tboil	[362.40; 371.34]	K
Tboil	362.50	K	NIST
Tboil	371.34 ± 0.20	K	NIST
Tboil	362.40 ± 0.40	K	NIST
Tboil	362.58 ± 0.30	K	NIST
Tboil	362.45 ± 0.30	K	NIST
Tc	543.24	K	Joback Calculated Property
Tfus	[148.89; 148.91]	K
Tfus	148.89 ± 0.04	K	NIST
Tfus	148.89 ± 0.03	K	NIST
Tfus	148.91 ± 0.02	K	NIST
Vc	0.403	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[180.18; 246.01]	J/mol×K	[363.16; 543.24]
Cp,gas	180.18	J/mol×K	363.16	Joback Calculated Property
Cp,gas	192.45	J/mol×K	393.17	Joback Calculated Property
Cp,gas	204.18	J/mol×K	423.19	Joback Calculated Property
Cp,gas	215.38	J/mol×K	453.20	Joback Calculated Property
Cp,gas	226.07	J/mol×K	483.22	Joback Calculated Property
Cp,gas	236.27	J/mol×K	513.23	Joback Calculated Property
Cp,gas	246.01	J/mol×K	543.24	Joback Calculated Property
ΔvapH	33.70	kJ/mol	351.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.64]	kPa	[263.37; 387.70]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.38502e+01
Coefficient B			-2.86605e+03
Coefficient C			-5.20480e+01
Temperature range, min.			263.37
Temperature range, max.			387.70
Pvap	1.33	kPa	263.37	Calculated Property
Pvap	3.06	kPa	277.18	Calculated Property
Pvap	6.40	kPa	291.00	Calculated Property
Pvap	12.32	kPa	304.81	Calculated Property
Pvap	22.18	kPa	318.63	Calculated Property
Pvap	37.66	kPa	332.44	Calculated Property
Pvap	60.86	kPa	346.26	Calculated Property
Pvap	94.21	kPa	360.07	Calculated Property
Pvap	140.46	kPa	373.89	Calculated Property
Pvap	202.64	kPa	387.70	Calculated Property

Similar Compounds

Find more compounds similar to 2-Pentene, 3,4-dimethyl-, (Z)-.

Sources

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

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