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All results from a given calculation for C6H4Cl2 (1,4-dichlorobenzene)

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-1151.321968
Energy at 298.15K-1151.325938
HF Energy-1151.321968
Nuclear repulsion energy444.946419
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at BLYP/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3142 3125 0.00      
2 Ag 1544 1535 0.00      
3 Ag 1166 1160 0.00      
4 Ag 1062 1056 0.00      
5 Ag 725 721 0.00      
6 Ag 317 315 0.00      
7 Au 906 901 0.00      
8 Au 405 403 0.00      
9 B1g 804 800 0.00      
10 B1u 3127 3110 2.02      
11 B1u 1454 1446 89.13      
12 B1u 1060 1054 98.70      
13 B1u 990 985 67.45      
14 B1u 520 517 39.66      
15 B2g 924 919 0.00      
16 B2g 686 682 0.00      
17 B2g 287 285 0.00      
18 B2u 3140 3123 3.14      
19 B2u 1372 1365 5.57      
20 B2u 1298 1290 0.04      
21 B2u 1093 1087 5.04      
22 B2u 213 212 1.13      
23 B3g 3128 3111 0.00      
24 B3g 1550 1541 0.00      
25 B3g 1277 1269 0.00      
26 B3g 618 615 0.00      
27 B3g 344 342 0.00      
28 B3u 808 804 40.50      
29 B3u 483 481 8.81      
30 B3u 99 98 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 17270.1 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 17175.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at BLYP/6-31G(2df,p)
ABC
0.18641 0.02182 0.01953

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.388
C2 0.000 0.000 -1.388
C3 0.000 1.221 0.701
C4 0.000 -1.221 0.701
C5 0.000 -1.221 -0.701
C6 0.000 1.221 -0.701
Cl7 0.000 0.000 3.156
Cl8 0.000 0.000 -3.156
H9 0.000 2.161 1.253
H10 0.000 -2.161 1.253
H11 0.000 -2.161 -1.253
H12 0.000 2.161 -1.253

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.77641.40151.40152.42002.42001.76774.54422.16512.16513.41233.4123
C22.77642.42002.42001.40151.40154.54421.76773.41233.41232.16512.1651
C31.40152.42002.44282.81651.40202.74204.04571.08953.42703.90602.1679
C41.40152.42002.44281.40202.81652.74204.04573.42701.08952.16793.9060
C52.42001.40152.81651.40202.44284.04572.74203.90602.16791.08953.4270
C62.42001.40151.40202.81652.44284.04572.74202.16793.90603.42701.0895
Cl71.76774.54422.74202.74204.04574.04576.31192.87952.87954.90984.9098
Cl84.54421.76774.04574.04572.74202.74206.31194.90984.90982.87952.8795
H92.16513.41231.08953.42703.90602.16792.87954.90984.32184.99552.5055
H102.16513.41233.42701.08952.16793.90602.87954.90984.32182.50554.9955
H113.41232.16513.90602.16791.08953.42704.90982.87954.99552.50554.3218
H123.41232.16512.16793.90603.42701.08954.90982.87952.50554.99554.3218

picture of 1,4-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C6 119.364 C1 C3 H9 120.211
C1 C4 C5 119.364 C1 C4 H10 120.211
C2 C5 C4 119.364 C2 C5 H11 120.211
C2 C6 C3 119.364 C2 C6 H12 120.211
C3 C1 C4 121.272 C3 C1 Cl7 119.364
C3 C6 H12 120.425 C4 C1 Cl7 119.364
C4 C5 H11 120.425 C5 C2 C6 121.272
C5 C2 Cl8 119.364 C5 C4 H10 120.425
C6 C2 Cl8 119.364 C6 C3 H9 120.425
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.221      
2 C 0.221      
3 C -0.127      
4 C -0.127      
5 C -0.127      
6 C -0.127      
7 Cl -0.180      
8 Cl -0.180      
9 H 0.106      
10 H 0.106      
11 H 0.106      
12 H 0.106      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -61.176 0.000 0.000
y 0.000 -52.794 0.000
z 0.000 0.000 -65.716
Traceless
 xyz
x -1.920 0.000 0.000
y 0.000 10.651 0.000
z 0.000 0.000 -8.731
Polar
3z2-r2-17.462
x2-y2-8.381
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.925 0.000 0.000
y 0.000 12.523 0.000
z 0.000 0.000 20.615


<r2> (average value of r2) Å2
<r2> 471.730
(<r2>)1/2 21.719