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

using model chemistry: B2PLYP/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 B2PLYP/6-31G(2df,p)
 hartrees
Energy at 0K-1150.958668
Energy at 298.15K-1150.962865
HF Energy-1150.545461
Nuclear repulsion energy449.207439
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 B2PLYP/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 3246 3100 0.00      
2 Ag 1619 1546 0.00      
3 Ag 1202 1148 0.00      
4 Ag 1118 1068 0.00      
5 Ag 757 723 0.00      
6 Ag 331 316 0.00      
7 Au 952 910 0.00      
8 Au 419 400 0.00      
9 B1g 841 803 0.00      
10 B1u 3231 3086 0.78      
11 B1u 1510 1442 101.10      
12 B1u 1114 1064 99.49      
13 B1u 1023 977 53.86      
14 B1u 554 529 30.92      
15 B2g 960 917 0.00      
16 B2g 705 674 0.00      
17 B2g 300 286 0.00      
18 B2u 3245 3099 0.58      
19 B2u 1423 1359 7.25      
20 B2u 1344 1284 0.01      
21 B2u 1126 1076 4.92      
22 B2u 221 211 1.17      
23 B3g 3233 3087 0.00      
24 B3g 1619 1546 0.00      
25 B3g 1317 1258 0.00      
26 B3g 635 607 0.00      
27 B3g 354 338 0.00      
28 B3u 843 805 44.98      
29 B3u 500 478 10.80      
30 B3u 103 99 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 17923.0 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 17116.5 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 B2PLYP/6-31G(2df,p)
ABC
0.18928 0.02227 0.01992

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.379
C2 0.000 0.000 -1.379
C3 0.000 1.212 0.696
C4 0.000 -1.212 0.696
C5 0.000 -1.212 -0.696
C6 0.000 1.212 -0.696
Cl7 0.000 0.000 3.122
Cl8 0.000 0.000 -3.122
H9 0.000 2.144 1.245
H10 0.000 -2.144 1.245
H11 0.000 -2.144 -1.245
H12 0.000 2.144 -1.245

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.75891.39161.39162.40342.40341.74294.50182.14852.14853.38893.3889
C22.75892.40342.40341.39161.39164.50181.74293.38893.38892.14852.1485
C31.39162.40342.42432.79541.39182.71244.00611.08173.40103.87712.1530
C41.39162.40342.42431.39182.79542.71244.00613.40101.08172.15303.8771
C52.40341.39162.79541.39182.42434.00612.71243.87712.15301.08173.4010
C62.40341.39161.39182.79542.42434.00612.71242.15303.87713.40101.0817
Cl71.74294.50182.71242.71244.00614.00616.24472.85002.85004.86524.8652
Cl84.50181.74294.00614.00612.71242.71246.24474.86524.86522.85002.8500
H92.14853.38891.08173.40103.87712.15302.85004.86524.28854.95882.4898
H102.14853.38893.40101.08172.15303.87712.85004.86524.28852.48984.9588
H113.38892.14853.87712.15301.08173.40104.86522.85004.95882.48984.2885
H123.38892.14852.15303.87713.40101.08174.86522.85002.48984.95884.2885

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 119.420 C1 C3 H9 120.084
C1 C4 C5 119.420 C1 C4 H10 120.084
C2 C5 C4 119.420 C2 C5 H11 120.084
C2 C6 C3 119.420 C2 C6 H12 120.084
C3 C1 C4 121.161 C3 C1 Cl7 119.420
C3 C6 H12 120.496 C4 C1 Cl7 119.420
C4 C5 H11 120.496 C5 C2 C6 121.161
C5 C2 Cl8 119.420 C5 C4 H10 120.496
C6 C2 Cl8 119.420 C6 C3 H9 120.496
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.155      
2 C 0.155      
3 C -0.148      
4 C -0.148      
5 C -0.148      
6 C -0.148      
7 Cl -0.151      
8 Cl -0.151      
9 H 0.146      
10 H 0.146      
11 H 0.146      
12 H 0.146      


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 -61.578 0.000 0.000
y 0.000 -52.531 0.000
z 0.000 0.000 -65.618
Traceless
 xyz
x -2.504 0.000 0.000
y 0.000 11.067 0.000
z 0.000 0.000 -8.564
Polar
3z2-r2-17.127
x2-y2-9.047
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.862 0.000 0.000
y 0.000 12.091 0.000
z 0.000 0.000 19.376


<r2> (average value of r2) Å2
<r2> 463.200
(<r2>)1/2 21.522