Chemical Properties of Tetraethylgermanium (CAS 597-63-7)

InChI

InChI=1S/C8H20Ge/c1-5-9(6-2,7-3)8-4/h5-8H2,1-4H3

InChI Key

QQXSEZVCKAEYQJ-UHFFFAOYSA-N

Formula

C8H20Ge

SMILES

C[CH2][Ge]([CH2]C)([CH2]C)[CH2]C

Molecular Weight¹

188.88

CAS

597-63-7

Other Names

• Germane, tetraethyl-
• Tetraethylgermane
• (C2H5)4Ge
• Germanium, tetraethyl-

• Δ_cH°_liquid : Standard liquid enthalpy of combustion (kJ/mol).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_liquid : Liquid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH : Enthalpy of fusion at a given temperature (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• logP_oct/wat : Octanol/Water partition coefficient.
• P_vap : Vapor pressure (kPa).
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• S°_liquid : Liquid phase molar entropy at standard conditions (J/mol×K).
• T_boil : Normal Boiling Point Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• T_triple : Triple Point Temperature (K).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔcH°liquid	[-6356.80; -6341.30]	kJ/mol
ΔcH°liquid	-6342.90 ± 4.20	kJ/mol	NIST
ΔcH°liquid	-6350.50 ± 6.30	kJ/mol	NIST
ΔcH°liquid	-6356.80 ± 3.20	kJ/mol	NIST
ΔcH°liquid	-6341.30 ± 7.10	kJ/mol	NIST
ΔfH°gas	[-164.90; -142.90]	kJ/mol
ΔfH°gas	-142.90 ± 3.90	kJ/mol	NIST
ΔfH°gas	-158.40 ± 7.50	kJ/mol	NIST
ΔfH°gas	-164.90 ± 6.50	kJ/mol	NIST
ΔfH°gas	-156.80 ± 4.80	kJ/mol	NIST
ΔfH°liquid	[-210.60; -188.60]	kJ/mol
ΔfH°liquid	-188.60 ± 3.90	kJ/mol	NIST
ΔfH°liquid	-204.10 ± 7.50	kJ/mol	NIST
ΔfH°liquid	-210.60 ± 6.50	kJ/mol	NIST
ΔfH°liquid	-202.50 ± 4.80	kJ/mol	NIST
ΔvapH°	[45.70; 45.70]	kJ/mol
ΔvapH°	45.70 ± 0.40	kJ/mol	NIST
ΔvapH°	45.70 ± 0.40	kJ/mol	NIST
IE	[8.90; 9.80]	eV
IE	8.90	eV	NIST
IE	9.80	eV	NIST
IE	9.30	eV	NIST
logPoct/wat	3.515		Crippen Calculated Property
S°liquid	428.80	J/mol×K	NIST
Tboil	435.40 ± 0.50	K	NIST
Tfus	180.47 ± 0.20	K	NIST
Ttriple	[179.99; 180.30]	K
Ttriple	179.99 ± 0.02	K	NIST
Ttriple	180.30 ± 0.20	K	NIST
Ttriple	179.99 ± 0.02	K	NIST
Ttriple	180.30 ± 0.20	K	NIST

Cheméo can also estimate Critical Temperature, Critical Pressure, Critical Volume, Standard Gibbs free energy of formation, Acentric Factor, 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

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[294.70; 309.60]	J/mol×K	[298.15; 298.15]
Cp,liquid	294.70	J/mol×K	298.15	NIST
Cp,liquid	309.60	J/mol×K	298.15	NIST
ΔfusH	[12.31; 12.62]	kJ/mol	[179.99; 180.47]
ΔfusH	12.31	kJ/mol	179.99	NIST
ΔfusH	12.31	kJ/mol	179.99	NIST
ΔfusH	12.62	kJ/mol	180.30	NIST
ΔfusH	12.31	kJ/mol	180.30	NIST
ΔfusH	12.31	kJ/mol	180.30	NIST
ΔfusH	12.62	kJ/mol	180.30	NIST
ΔfusH	12.41	kJ/mol	180.47	NIST
ΔvapH	[43.40; 46.10]	kJ/mol	[273.00; 386.50]
ΔvapH	43.40	kJ/mol	273.00	NIST
ΔvapH	46.10	kJ/mol	386.50	NIST
ΔfusS	[68.00; 70.00]	J/mol×K	[179.99; 180.47]
ΔfusS	68.00	J/mol×K	179.99	NIST
ΔfusS	68.00	J/mol×K	179.99	NIST
ΔfusS	70.00	J/mol×K	180.30	NIST
ΔfusS	70.00	J/mol×K	180.30	NIST
ΔfusS	68.74	J/mol×K	180.47	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[2.92; 98.81]	kPa	[337.39; 436.69]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.29582e+01
Coefficient B			-2.80329e+03
Coefficient C			-1.01570e+02
Reference			Mogul, Hochberg, et al., 1974
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			337.39
Temperature range, max.			436.69
Pvap	2.92	kPa	337.39	Calculated Property
Pvap	4.96	kPa	348.42	Calculated Property
Pvap	8.07	kPa	359.46	Calculated Property
Pvap	12.60	kPa	370.49	Calculated Property
Pvap	19.01	kPa	381.52	Calculated Property
Pvap	27.78	kPa	392.56	Calculated Property
Pvap	39.50	kPa	403.59	Calculated Property
Pvap	54.79	kPa	414.62	Calculated Property
Pvap	74.32	kPa	425.66	Calculated Property
Pvap	98.81	kPa	436.69	Calculated Property

Similar Compounds

Find more compounds similar to Tetraethylgermanium.

Sources

• 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
• NIST Webbook

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