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 (1,2-dichlorobenzene)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G3B3
 hartrees
Energy at 0K-1150.990626
Energy at 298.15K-1150.982822
HF Energy-1151.435733
Nuclear repulsion energy467.309611
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 B3LYP/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 A1 3230 3101 4.37      
2 A1 3213 3086 10.70      
3 A1 1627 1563 3.04      
4 A1 1505 1446 59.21      
5 A1 1330 1278 0.68      
6 A1 1196 1148 0.40      
7 A1 1151 1105 48.05      
8 A1 1066 1024 8.76      
9 A1 672 645 16.74      
10 A1 479 460 8.82      
11 A1 202 194 0.01      
12 A2 986 947 0.00      
13 A2 869 834 0.00      
14 A2 704 676 0.00      
15 A2 522 501 0.00      
16 A2 138 132 0.00      
17 B1 949 911 1.93      
18 B1 766 736 53.60      
19 B1 450 432 3.24      
20 B1 236 227 0.50      
21 B2 3226 3098 5.21      
22 B2 3200 3073 1.81      
23 B2 1635 1570 7.17      
24 B2 1477 1418 17.49      
25 B2 1288 1236 3.38      
26 B2 1159 1113 1.93      
27 B2 1041 999 40.24      
28 B2 748 719 21.24      
29 B2 430 413 0.91      
30 B2 339 325 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 17915.4 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 17204.2 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 B3LYP/6-31G*
ABC
0.06295 0.04731 0.02701

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.701 -0.027
C2 0.000 -0.701 -0.027
C3 0.000 1.394 1.186
C4 0.000 -1.394 1.186
C5 0.000 0.698 2.392
C6 0.000 -0.698 2.392
Cl7 0.000 1.614 -1.518
Cl8 0.000 -1.614 -1.518
H9 0.000 2.479 1.169
H10 0.000 -2.479 1.169
H11 0.000 1.248 3.328
H12 0.000 -1.248 3.328

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40111.39712.42062.41892.79391.74842.75302.14333.39723.39943.8798
C21.40112.42061.39712.79392.41892.75301.74843.39722.14333.87983.3994
C31.39712.42062.78891.39302.41512.71244.04461.08483.87362.14753.4019
C42.42061.39712.78892.41511.39304.04462.71243.87361.08483.40192.1475
C52.41892.79391.39302.41511.39554.01574.54202.16063.40411.08592.1593
C62.79392.41892.41511.39301.39554.54204.01573.40412.16062.15931.0859
Cl71.74842.75302.71244.04464.01574.54203.22752.82304.89614.85985.6279
Cl82.75301.74844.04462.71244.54204.01573.22754.89612.82305.62794.8598
H92.14333.39721.08483.87362.16063.40412.82304.89614.95822.48534.3072
H103.39722.14333.87361.08483.40412.16064.89612.82304.95824.30722.4853
H113.39943.87982.14753.40191.08592.15934.85985.62792.48534.30722.4960
H123.87983.39943.40192.14752.15931.08595.62794.85984.30722.48532.4960

picture of 1,2-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 119.722 C1 C2 Cl8 121.584
C1 C3 C5 120.309 C1 C3 H9 118.902
C2 C1 C3 119.722 C2 C1 Cl7 121.584
C2 C4 C6 120.309 C2 C4 H10 118.902
C3 C1 Cl7 118.695 C3 C5 C6 119.969
C3 C5 H11 119.586 C4 C2 Cl8 118.695
C4 C6 C5 119.969 C4 C6 H12 119.586
C5 C3 H9 120.788 C5 C6 H12 120.445
C6 C4 H10 120.788 C6 C5 H11 120.445
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.074      
2 C -0.074      
3 C -0.126      
4 C -0.126      
5 C -0.123      
6 C -0.123      
7 Cl 0.013      
8 Cl 0.013      
9 H 0.163      
10 H 0.163      
11 H 0.147      
12 H 0.147      


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 2.778 2.778
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 363.513
(<r2>)1/2 19.066