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All results from a given calculation for C6H4Cl2 (1,2-dichlorobenzene)

using model chemistry: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-1149.604223
Energy at 298.15K 
HF Energy-1148.509461
Nuclear repulsion energy468.467805
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 CCD/6-31+G**
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 3289 3099 6.78      
2 A1 3274 3085 5.74      
3 A1 1668 1571 4.68      
4 A1 1541 1452 51.59      
5 A1 1306 1231 1.53      
6 A1 1207 1137 2.55      
7 A1 1191 1122 32.40      
8 A1 1082 1020 7.67      
9 A1 684 644 13.01      
10 A1 493 465 4.92      
11 A1 206 194 0.01      
12 A2 911 859 0.00      
13 A2 840 792 0.00      
14 A2 451 425 0.00      
15 A2 125 118 0.00      
16 A2 726i 684i 0.00      
17 B1 915 862 0.92      
18 B1 759 715 77.09      
19 B1 409 386 4.17      
20 B1 222 209 1.56      
21 B2 3284 3094 5.13      
22 B2 3262 3073 1.01      
23 B2 1684 1586 8.59      
24 B2 1503 1416 16.24      
25 B2 1312 1236 3.16      
26 B2 1182 1114 2.29      
27 B2 1071 1009 34.58      
28 B2 770 725 12.77      
29 B2 436 410 0.32      
30 B2 343 323 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 17345.7 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 16344.9 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 CCD/6-31+G**
ABC
0.06322 0.04759 0.02715

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.700 -0.033
C2 0.000 -0.700 -0.033
C3 0.000 1.393 1.181
C4 0.000 -1.393 1.181
C5 0.000 0.698 2.388
C6 0.000 -0.698 2.388
Cl7 0.000 1.609 -1.512
Cl8 0.000 -1.609 -1.512
H9 0.000 2.474 1.165
H10 0.000 -2.474 1.165
H11 0.000 1.247 3.321
H12 0.000 -1.247 3.321

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.39911.39782.41892.42122.79581.73642.74202.14103.39203.39803.8775
C21.39912.41891.39782.79582.42122.74201.73643.39202.14103.87753.3980
C31.39782.41892.78561.39292.41472.70134.03281.08113.86662.14483.3980
C42.41891.39782.78562.41471.39294.03282.70133.86661.08113.39802.1448
C52.42122.79581.39292.41471.39674.00514.53172.15593.39981.08172.1571
C62.79582.42122.41471.39291.39674.53174.00513.39982.15592.15711.0817
Cl71.73642.74202.70134.03284.00514.53173.21892.81314.88264.84615.6134
Cl82.74201.73644.03282.70134.53174.00513.21894.88262.81315.61344.8461
H92.14103.39201.08113.86662.15593.39982.81314.88264.94762.48024.2998
H103.39202.14103.86661.08113.39982.15594.88262.81314.94764.29982.4802
H113.39803.87752.14483.39801.08172.15714.84615.61342.48024.29982.4935
H123.87753.39803.39802.14482.15711.08175.61344.84614.29982.48022.4935

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 119.733 C1 C2 Cl8 121.603
C1 C3 C5 120.363 C1 C3 H9 118.908
C2 C1 C3 119.733 C2 C1 Cl7 121.603
C2 C4 C6 120.363 C2 C4 H10 118.908
C3 C1 Cl7 118.664 C3 C5 C6 119.904
C3 C5 H11 119.634 C4 C2 Cl8 118.664
C4 C6 C5 119.904 C4 C6 H12 119.634
C5 C3 H9 120.728 C5 C6 H12 120.462
C6 C4 H10 120.728 C6 C5 H11 120.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability