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Experimental data for CH3CCl2CH3 (Propane, 2,2-dichloro-)

22 02 02 11 45
Other names
2,2-Dichloropropane; Dimethyldichloromethane; Propane, 2,2-dichloro-;
INChI INChIKey SMILES IUPAC name
InChI=1S/C3H6Cl2/c1-3(2,4)5/h1-2H3 ZEOVXNVKXIPWMS-UHFFFAOYSA-N CC(Cl)(Cl)C 2,2-Dichloropropane
State Conformation
1A1 C2V
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 -176.69   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  
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
1 A1 3001   1971Gre/Har:1217-1219       CH3 a-str
2 A1 2937   1971Gre/Har:1217-1219       CH3 s-stretch
3 A1 1436   1971Gre/Har:1217-1219       CH3 a-deform
4 A1 1387   1971Gre/Har:1217-1219       CH3 s-deform
5 A1 1158   1971Gre/Har:1217-1219       CH3 rock
6 A1 914   1971Gre/Har:1217-1219       CC stretch
7 A1 556   1971Gre/Har:1217-1219       CCl stretch
8 A1 364   2015Bia/Psz:308-309      
9 A1 257   2015Bia/Psz:308-309      
10 A2 2908   1971Gre/Har:1217-1219       CH3 a-str
11 A2 1446   1971Gre/Har:1217-1219       CH3 a-deform
12 A2 1020   1971Gre/Har:1217-1219       CH3 rock
13 A2 281   2015Bia/Psz:308-309      
14 A2 260   2015Bia/Psz:308-309       CH3 internal rotation
15 B1 2988   1971Gre/Har:1217-1219       B1, B2 switched CH3 a-str
16 B1 1456   1971Gre/Har:1217-1219       B1, B2 switched CH3 a-deform
17 B1 1112   1971Gre/Har:1217-1219       B1, B2 switched CH3 rock
18 B1 655   1971Gre/Har:1217-1219       B1, B2 switched CCl stretch
19 B1 360   2015Bia/Psz:308-309       B1, B2 switched
20 B1 288   2015Bia/Psz:308-309       B1, B2 switched CH3 internal rotation
21 B2 3001   1971Gre/Har:1217-1219       B1, B2 switched CH3 a-str
22 B2 2937   1971Gre/Har:1217-1219       B1, B2 switched CH3 s-stretch
23 B2 1447   1971Gre/Har:1217-1219       B1, B2 switched CH3 a-deform
24 B2 1374   1971Gre/Har:1217-1219       B1, B2 switched CH3 s-deform
25 B2 1192   1971Gre/Har:1217-1219       B1, B2 switched CC stretch
26 B2 951   1971Gre/Har:1217-1219       B1, B2 switched CH3 rock
27 B2 389   2015Bia/Psz:308-309       B1, B2 switched

vibrational zero-point energy: 18037.1 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for CH3CCl2CH3 (Propane, 2,2-dichloro-).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.12211 0.08199 0.07199 1995Tak/Sug:267-272

Calculated rotational constants for CH3CCl2CH3 (Propane, 2,2-dichloro-).
Product of moments of inertia moments of inertia
6646871amu3Å6   3.0435836196612E-113gm3 cm6
Geometric Data
picture of Propane, 2,2-dichloro-

Point Group C2v


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 1.799   1 2 1987Kuchitsu(II/15)
rCC 1.523   1 4 1987Kuchitsu(II/15)
rCH 1.101   4 6 1987Kuchitsu(II/15)
aClCCl 108.3 2 1 3 1987Kuchitsu(II/15)
aCCC 113 4 1 5 1987Kuchitsu(II/15)
aHCH 107.2 6 4 8 1987Kuchitsu(II/15)
aCCCl 108.9 2 1 4 1987Kuchitsu(II/15)
aHCC 111.65 1 4 6 1987Kuchitsu(II/15) from symmetry

Cartesians
Atom x (Å) y (Å) z (Å)
C1 0.0001 0.3336 0.0001
Cl2 -1.4570 -0.7216 -0.0026
Cl3 1.4594 -0.7184 -0.0002
C4 0.0002 1.1776 -1.2676
C5 -0.0044 1.1707 1.2724
H6 0.0034 0.5510 -2.1729
H7 -0.8925 1.8190 1.3289
H8 0.8849 1.8308 -1.3206
H9 -0.8877 1.8262 -1.3239
H10 -0.0044 0.5391 2.1742
H11 0.8801 1.8236 1.3321

Atom - Atom Distances bond lengths
Distances in Å
  C1 Cl2 Cl3 C4 C5 H6 H7 H8 H9 H10 H11
C1   1.79901.79901.52301.52302.18382.18382.18382.18382.18382.1838
Cl2 1.7990   2.91642.70762.70492.90912.92343.70632.92602.90473.7042
Cl3 1.79902.9164   2.70762.70762.90723.70632.92793.70632.90722.9279
C4 1.52302.70762.7076   2.54001.10102.81961.10101.10103.50062.8196
C5 1.52302.70492.70762.5400   3.50061.10102.81962.81961.10101.1010
H6 2.18382.90912.90721.10103.5006   3.83061.77241.77244.34713.8306
H7 2.18382.92343.70632.81961.10103.8306   3.19052.65281.77241.7726
H8 2.18383.70632.92791.10102.81961.77243.1905   1.77263.83062.6528
H9 2.18382.92603.70631.10102.81961.77242.65281.7726   3.83063.1905
H10 2.18382.90472.90723.50061.10104.34711.77243.83063.8306   1.7724
H11 2.18383.70422.92792.81961.10103.83061.77262.65283.19051.7724  

Calculated geometries for CH3CCl2CH3 (Propane, 2,2-dichloro-).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
C1 C4 H6 111.650 C1 C4 H8 111.650
C1 C4 H9 111.650 C1 C5 H7 111.650
C1 C5 H10 111.650 C1 C5 H11 111.650
Cl2 C1 Cl3 108.300 Cl2 C1 C4 108.900
Cl2 C1 C5 108.738 Cl3 C1 C4 108.900
Cl3 C1 C5 108.900 C4 C1 C5 113.000
H6 C4 H8 107.200 H6 C4 H9 107.200
H7 C5 H10 107.200 H7 C5 H11 107.222
H8 C4 H9 107.222 H10 C5 H11 107.200

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 6
C-C 2
C-Cl 2

Connectivity
Atom 1 Atom 2
C1 Cl2
C1 Cl3
C1 C4
C1 C5
C4 H6
C4 H8
C4 H9
C5 H7
C5 H10
C5 H11
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1
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 C2v True     2.200 2.200 1995Tak/Sug:267-272 ± 0.01 D C2v 1 2
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 CH3CCl2CH3 (Propane, 2,2-dichloro-).
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 C2v True       C2v 1 2

Calculated electric quadrupole moments for CH3CCl2CH3 (Propane, 2,2-dichloro-).

References
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squib reference DOI
1987Kuchitsu(II/15) Kuchitsu (ed.), Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 15: Structure Data of Free Polyatomic Molecules. Springer-Verlag, Berlin, 1987.  
1995Tak/Sug:267-272 H Takeo, M Sugie, C Matsumura "Molecular structures of 2,2-dihalogenopropanes by microwave spectroscopy: CH3CF2CH3, CH3CClzCH3, and CH3CC1FCH3" J. Mol. Struct. Volumes 352–353, 1995, 267-272 10.1016/0022-2860(95)08832-G
2015Bia/Psz:308-309 E Białkowska-Jaworska, L Pszczółkowski, Z Kisiel "Comprehensive analysis of the rotational spectrum of 2,2-dichloropropane" J.Mol. Spect. V308–309 (2015) 20–27 10.1016/j.jms.2014.12.024
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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