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

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-64.635435
Energy at 298.15K-64.639990
HF Energy-64.635435
Nuclear repulsion energy163.065301
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 HF/CEP-121G*
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 3396 3068 0.00      
2 Ag 1754 1585 0.00      
3 Ag 1278 1155 0.00      
4 Ag 1181 1067 0.00      
5 Ag 806 728 0.00      
6 Ag 351 317 0.00      
7 Au 1098 992 0.00      
8 Au 454 410 0.00      
9 B1g 933 843 0.00      
10 B1u 3380 3053 3.96      
11 B1u 1630 1473 120.12      
12 B1u 1195 1080 131.79      
13 B1u 1094 988 52.67      
14 B1u 587 530 34.13      
15 B2g 1064 961 0.00      
16 B2g 738 667 0.00      
17 B2g 323 292 0.00      
18 B2u 3395 3067 9.81      
19 B2u 1520 1374 8.77      
20 B2u 1228 1109 4.52      
21 B2u 1148 1037 0.04      
22 B2u 233 211 1.32      
23 B3g 3381 3054 0.00      
24 B3g 1736 1569 0.00      
25 B3g 1419 1282 0.00      
26 B3g 679 613 0.00      
27 B3g 377 341 0.00      
28 B3u 930 840 75.77      
29 B3u 539 487 23.17      
30 B3u 112 101 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 18979.6 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 17146.2 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 HF/CEP-121G*
ABC
0.18992 0.02218 0.01986

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

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 1.210 0.696
C4 0.000 -1.210 0.696
C5 0.000 -1.210 -0.696
C6 0.000 1.210 -0.696
Cl7 0.000 0.000 3.129
Cl8 0.000 0.000 -3.129
H9 0.000 2.139 1.238
H10 0.000 -2.139 1.238
H11 0.000 -2.139 -1.238
H12 0.000 2.139 -1.238

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.75861.38971.38972.40282.40281.75024.50872.14332.14333.38023.3802
C22.75862.40282.40281.38971.38974.50871.75023.38023.38022.14332.1433
C31.38972.40282.42082.79291.39282.71754.01281.07493.39263.86772.1459
C41.38972.40282.42081.39282.79292.71754.01283.39261.07492.14593.8677
C52.40281.38972.79291.39282.42084.01282.71753.86772.14591.07493.3926
C62.40281.38971.39282.79292.42084.01282.71752.14593.86773.39261.0749
Cl71.75024.50872.71752.71754.01284.01286.25892.85482.85484.86334.8633
Cl84.50871.75024.01284.01282.71752.71756.25894.86334.86332.85482.8548
H92.14333.38021.07493.39263.86772.14592.85484.86334.27734.94262.4767
H102.14333.38023.39261.07492.14593.86772.85484.86334.27732.47674.9426
H113.38022.14333.86772.14591.07493.39264.86332.85484.94262.47674.2773
H123.38022.14332.14593.86773.39261.07494.86332.85482.47674.94264.2773

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 119.431 C1 C3 H9 120.291
C1 C4 C5 119.431 C1 C4 H10 120.291
C2 C5 C4 119.431 C2 C5 H11 120.291
C2 C6 C3 119.431 C2 C6 H12 120.291
C3 C1 C4 121.138 C3 C1 Cl7 119.431
C3 C6 H12 120.278 C4 C1 Cl7 119.431
C4 C5 H11 120.278 C5 C2 C6 121.138
C5 C2 Cl8 119.431 C5 C4 H10 120.278
C6 C2 Cl8 119.431 C6 C3 H9 120.278
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.131      
2 C 0.131      
3 C -0.279      
4 C -0.279      
5 C -0.279      
6 C -0.279      
7 Cl -0.137      
8 Cl -0.137      
9 H 0.282      
10 H 0.282      
11 H 0.282      
12 H 0.282      


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 -62.360 0.000 0.000
y 0.000 -51.011 0.000
z 0.000 0.000 -66.256
Traceless
 xyz
x -3.726 0.000 0.000
y 0.000 13.297 0.000
z 0.000 0.000 -9.570
Polar
3z2-r2-19.141
x2-y2-11.349
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.035 0.000 0.000
y 0.000 11.910 0.000
z 0.000 0.000 18.305


<r2> (average value of r2) Å2
<r2> 245.356
(<r2>)1/2 15.664