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Experimental data for CH3CCl(CH3)CH3 (Propane, 2-chloro-2-methyl-)

22 02 02 11 45
Other names
2-Methyl-2-chloropropane; 2-Methyl-2-propyl chloride; 2-Chloro-2-methylpropane; 2-Chloroisobutane; Chlorotrimethylmethane; n-Propylcarbinyl chloride; Propane, 2-chloro-2-methyl-; tert-Butyl Chloride; tert-C4H9Cl; Tertiary-butyl chloride; Trimethylchloromethane;
INChI INChIKey SMILES IUPAC name
InChI=1S/C4H9Cl/c1-4(2,3)5/h1-3H3 NBRKLOOSMBRFMH-UHFFFAOYSA-N CC(C)(Cl)C 2-Chloro-2-methylpropane
State Conformation
1A1 C3V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -179.87   kJ mol-1 webbook
Hfg(0K) enthalpy of formation     kJ mol-1 webbook
Entropy (298.15K) entropy     J K-1 mol-1  
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity     kJ mol-1  
Heat Capacity (298.15K) heat capacity 111.95   J K-1 mol-1 TRC
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference

Calculated vibrational frequencies for CH3CCl(CH3)CH3 (Propane, 2-chloro-2-methyl-).
Gas-phase IR spectra can be found in the NIST Chemistry Webbook here.
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
       

Calculated rotational constants for CH3CCl(CH3)CH3 (Propane, 2-chloro-2-methyl-).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of Propane, 2-chloro-2-methyl-

Point Group C3v


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rCCl 1.803   1 2 1976Hellwege(II/7)
rCC 1.530   1 3 1976Hellwege(II/7)
rCH 1.078   3 6 1976Hellwege(II/7)
aCCC 110.9 3 1 4 1976Hellwege(II/7)
aHCC 110.8 1 3 6 1976Hellwege(II/7) !assumed
aCCCl 108 2 1 3 1976Hellwege(II/7) by symmetry

These cartesians were determined using some assumed coordinate values. Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for CH3CCl(CH3)CH3 (Propane, 2-chloro-2-methyl-).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 9
C-C 3
C-Cl 1

Connectivity
Atom 1 Atom 2
C1 Cl2
C1 C3
C1 C4
C1 C5
C3 H6
C3 H9
C3 H10
C4 H7
C4 H11
C4 H12
C5 H8
C5 H13
C5 H14
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
10.580   10.690   webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A1 C3v True       2.130 NSRDS-NBS10 DR C3v 1 1
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for CH3CCl(CH3)CH3 (Propane, 2-chloro-2-methyl-).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A1 C3v True       C3v 1 1

Calculated electric quadrupole moments for CH3CCl(CH3)CH3 (Propane, 2-chloro-2-methyl-).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
9.879   1998Gus/Rui:163

Calculated electric dipole polarizability for CH3CCl(CH3)CH3 (Propane, 2-chloro-2-methyl-).

References
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squib reference DOI
1976Hellwege(II/7) Hellwege, KH and AM Hellwege (ed.). Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 7: Structure Data of Free Polyatomic Molecules. Springer-Verlag. Berlin. 1976.  
1998Gus/Rui:163 M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215 10.1016/S0022-2860(97)00292-5
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10
TRC Frenkel, M; Marsh, K.N.; Wilhoit, R.C.; Kabo, G.J.; Roganov, G.N.,Thermodynamics of Organic Compounds in the Gas State,Thermodynamics Research Center, College Station, TX, 1994  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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