return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-1150.742435
Energy at 298.15K-1150.746387
HF Energy-1150.742435
Nuclear repulsion energy446.042363
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 PBEPBEultrafine/6-31G*
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 3162 3110 0.00      
2 Ag 1591 1565 0.00      
3 Ag 1172 1152 0.00      
4 Ag 1090 1072 0.00      
5 Ag 740 728 0.00      
6 Ag 323 318 0.00      
7 Au 915 900 0.00      
8 Au 406 399 0.00      
9 B1g 790 777 0.00      
10 B1u 3148 3096 2.16      
11 B1u 1474 1450 105.00      
12 B1u 1081 1064 100.49      
13 B1u 992 976 65.36      
14 B1u 538 529 37.80      
15 B2g 911 896 0.00      
16 B2g 671 660 0.00      
17 B2g 288 284 0.00      
18 B2u 3161 3109 2.61      
19 B2u 1399 1376 4.42      
20 B2u 1345 1323 0.04      
21 B2u 1101 1083 6.14      
22 B2u 216 213 1.01      
23 B3g 3149 3097 0.00      
24 B3g 1586 1559 0.00      
25 B3g 1278 1257 0.00      
26 B3g 618 608 0.00      
27 B3g 346 341 0.00      
28 B3u 792 779 52.49      
29 B3u 475 467 13.38      
30 B3u 99 97 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 17428.6 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 17141.0 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 PBEPBEultrafine/6-31G*
ABC
0.18674 0.02195 0.01964

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.391
C2 0.000 0.000 -1.391
C3 0.000 1.220 0.700
C4 0.000 -1.220 0.700
C5 0.000 -1.220 -0.700
C6 0.000 1.220 -0.700
Cl7 0.000 0.000 3.145
Cl8 0.000 0.000 -3.145
H9 0.000 2.163 1.252
H10 0.000 -2.163 1.252
H11 0.000 -2.163 -1.252
H12 0.000 2.163 -1.252

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.78161.40161.40162.42082.42081.75384.53552.16752.16753.41543.4154
C22.78162.42082.42081.40161.40164.53551.75383.41543.41542.16752.1675
C31.40162.42082.43942.81291.40052.73184.03371.09303.42763.90592.1685
C41.40162.42082.43941.40052.81292.73184.03373.42761.09302.16853.9059
C52.42081.40162.81291.40052.43944.03372.73183.90592.16851.09303.4276
C62.42081.40161.40052.81292.43944.03372.73182.16853.90593.42761.0930
Cl71.75384.53552.73182.73184.03374.03376.28932.87402.87404.90024.9002
Cl84.53551.75384.03374.03372.73182.73186.28934.90024.90022.87402.8740
H92.16753.41541.09303.42763.90592.16852.87404.90024.32624.99892.5046
H102.16753.41543.42761.09302.16853.90592.87404.90024.32622.50464.9989
H113.41542.16753.90592.16851.09303.42764.90022.87404.99892.50464.3262
H123.41542.16752.16853.90593.42761.09304.90022.87402.50464.99894.3262

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 119.517 C1 C3 H9 120.149
C1 C4 C5 119.517 C1 C4 H10 120.149
C2 C5 C4 119.517 C2 C5 H11 120.149
C2 C6 C3 119.517 C2 C6 H12 120.149
C3 C1 C4 120.967 C3 C1 Cl7 119.517
C3 C6 H12 120.334 C4 C1 Cl7 119.517
C4 C5 H11 120.334 C5 C2 C6 120.967
C5 C2 Cl8 119.517 C5 C4 H10 120.334
C6 C2 Cl8 119.517 C6 C3 H9 120.334
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.090      
2 C -0.090      
3 C -0.130      
4 C -0.130      
5 C -0.130      
6 C -0.130      
7 Cl 0.009      
8 Cl 0.009      
9 H 0.171      
10 H 0.171      
11 H 0.171      
12 H 0.171      


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 -61.775 0.000 0.000
y 0.000 -51.930 0.000
z 0.000 0.000 -64.683
Traceless
 xyz
x -3.468 0.000 0.000
y 0.000 11.299 0.000
z 0.000 0.000 -7.831
Polar
3z2-r2-15.661
x2-y2-9.845
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.580 0.000 0.000
y 0.000 11.738 0.000
z 0.000 0.000 19.608


<r2> (average value of r2) Å2
<r2> 469.036
(<r2>)1/2 21.657