Chemical Properties of Disilane, hexamethyl- (CAS 1450-14-2)

InChI

InChI=1S/C6H18Si2/c1-7(2,3)8(4,5)6/h1-6H3

InChI Key

NEXSMEBSBIABKL-UHFFFAOYSA-N

Formula

C6H18Si2

SMILES

C[Si](C)(C)[Si](C)(C)C

Molecular Weight¹

146.38

CAS

1450-14-2

Other Names

• Hexamethyldisilane
• (CH3)6Si2
• Permethyldisilane
• CH7280

• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• Δ_fusH : Enthalpy of fusion at a given temperature (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• I_np : Non-polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• 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
IE	[8.00; 8.79]	eV
IE	8.27 ± 0.05	eV	NIST
IE	8.27 ± 0.05	eV	NIST
IE	8.27 ± 0.05	eV	NIST
IE	8.40	eV	NIST
IE	8.00	eV	NIST
IE	8.35 ± 0.12	eV	NIST
IE	8.46 ± 0.15	eV	NIST
IE	8.00 ± 0.01	eV	NIST
IE	8.35 ± 0.12	eV	NIST
IE	8.79 ± 0.08	eV	NIST
IE	8.68	eV	NIST
IE	8.70 ± 0.05	eV	NIST
IE	8.69	eV	NIST
IE	8.69	eV	NIST
log10WS	2.55		Crippen Calculated Property
logPoct/wat	2.741		Crippen Calculated Property
Inp	[685.90; 699.00]
Inp	686.10		NIST
Inp	685.90		NIST
Inp	698.00		NIST
Inp	699.00		NIST
Inp	686.10		NIST
Inp	698.00		NIST
Tboil	[386.00; 386.00]	K
Tboil	386.00	K	NIST
Tboil	386.00	K	NIST
Tfus	[287.10; 287.70]	K
Tfus	287.10 ± 0.10	K	NIST
Tfus	287.22 ± 0.05	K	NIST
Tfus	287.70 ± 0.20	K	NIST

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	255.89	J/mol×K	295.67	NIST
ΔfusH	[3.02; 9.75]	kJ/mol	[221.80; 287.70]
ΔfusH	9.75	kJ/mol	221.80	NIST
ΔfusH	3.02	kJ/mol	287.70	NIST
ΔfusH	3.02	kJ/mol	287.70	NIST
ΔvapH	[36.30; 37.20]	kJ/mol	[299.00; 346.00]
ΔvapH	37.20	kJ/mol	299.00	NIST
ΔvapH	36.80	kJ/mol	314.00	NIST
ΔvapH	36.30	kJ/mol	346.00	NIST
ΔfusS	[10.49; 43.95]	J/mol×K	[221.80; 287.70]
ΔfusS	43.95	J/mol×K	221.80	NIST
ΔfusS	10.49	J/mol×K	287.70	NIST

Similar Compounds

Find more compounds similar to Disilane, hexamethyl-.

Sources

• Crippen Method
• Crippen Method
• NIST Webbook

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