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Experimental data for C6H4Cl2 (1,3-dichlorobenzene)

22 02 02 11 45
INChI INChIKey SMILES IUPAC name
InChI=1S/C6H4Cl2/c7-5-2-1-3-6(8)4-5/h1-4H ZPQOPVIELGIULI-UHFFFAOYSA-N ClC1=CC(Cl)=CC=C1 1,3-dichlorobenzene
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 29.00 3.80 kJ mol-1 TRC
Hfg(0K) enthalpy of formation   3.80 kJ mol-1 TRC
Entropy (298.15K) entropy 344.20 3.40 J K-1 mol-1 TRC
Heat Capacity (298.15K) heat capacity 114.50 1.10 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
2 A1 3071   1970Gree:1523      
3 A1 3071          
4 A1 1577          
5 A1 1412          
6 A1 1124          
7 A1 1073          
8 A1 997          
9 A1 663          
10 A1 398          
11 A1 198          
12 A2 892          
13 A2 532          
14 A2 212          
15 B1 964          
16 B1 867          
17 B1 773          
18 B1 672          
19 B1 433          
20 B1 175          
21 B2 3095          
22 B2 1577          
23 B2 1462          
24 B2 1289          
25 B2 1258          
26 B2 1161          
27 B2 1080          
28 B2 784          
29 B2 429          
30 B2 365          

Calculated vibrational frequencies for C6H4Cl2 (1,3-dichlorobenzene).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.09448 0.02878 0.02206 1993Ond/Ats:101

Calculated rotational constants for C6H4Cl2 (1,3-dichlorobenzene).
Product of moments of inertia moments of inertia
7.987365E+07amu3Å6   3.65739197729856E-112gm3 cm6
Geometric Data
picture of 1,3-dichlorobenzene

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
rCC 1.388 0.004 1 2 1998Kuc
rCC 1.392 0.003 2 4 1998Kuc
rCC 1.404 0.003 4 6 1998Kuc
rCCl 1.736 0.001 4 7 1998Kuc
rHC 1.091 0.006 6 12 1998Kuc
rHC 1.085 0.002 2 10 1998Kuc
rHC 1.091 0.007 1 9
aCCC 118.1 0.4 4 6 5 1998Kuc
aCCC 122.3 0.2 2 4 6 1998Kuc
aCCC 118.1 0.2 1 2 4 1998Kuc
aCCC 121.1 0.4 2 1 3
aCCCl 118.9 0.3 6 4 7 1998Kuc
aCCH 121.2 0.2 4 2 10 1998Kuc

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for C6H4Cl2 (1,3-dichlorobenzene).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
C:C 6
H-C 4
C-Cl 2

Connectivity
Atom 1 Atom 2
C1 C2
C1 C3
C1 H9
C2 C4
C2 H10
C3 C5
C3 H11
C4 C6
C4 Cl7
C5 C6
C5 Cl8
C6 H12
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
9.100 0.020     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 C2v True           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 C6H4Cl2 (1,3-dichlorobenzene).
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 C6H4Cl2 (1,3-dichlorobenzene).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
13.729   1998Gus/Rui:163

Calculated electric dipole polarizability for C6H4Cl2 (1,3-dichlorobenzene).

References
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squib reference DOI
1993Ond/Ats:101 M Onda, M Atsuki, J Yamaguchi, K Suga, I Yamaguchi "Microwave spectra and structure of 1,3-dichlorobenzene" J. Mol. Struct. 295 (1993) 101-104 10.1016/0022-2860(93)85010-R
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
1998Kuc K Kuchitsu(ed) "Structure of Free Polyatomic Molecules - Basic Data" Springer, Berlin, 1998 10.1007/978-3-642-45748-7 
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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