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

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G2
 hartrees
Energy at 0K-1150.087035
Energy at 298.15K-1150.079316
HF Energy-1148.496894
Nuclear repulsion energy470.951310
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/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 3408 3211 7.18      
2 A1 3390 3194 12.25      
3 A1 1770 1668 3.37      
4 A1 1639 1544 68.18      
5 A1 1319 1243 0.86      
6 A1 1254 1182 39.88      
7 A1 1199 1130 1.74      
8 A1 1138 1072 7.08      
9 A1 725 683 17.49      
10 A1 518 488 7.83      
11 A1 220 207 0.00      
12 A2 1122 1057 0.00      
13 A2 984 927 0.00      
14 A2 790 744 0.00      
15 A2 573 540 0.00      
16 A2 152 143 0.00      
17 B1 1083 1020 2.50      
18 B1 855 805 68.97      
19 B1 496 467 4.96      
20 B1 260 245 0.69      
21 B2 3404 3208 7.43      
22 B2 3375 3180 2.03      
23 B2 1787 1683 6.19      
24 B2 1599 1507 23.41      
25 B2 1396 1316 4.52      
26 B2 1247 1175 4.65      
27 B2 1135 1070 40.21      
28 B2 809 762 19.36      
29 B2 464 437 0.78      
30 B2 366 345 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 19237.9 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 18126.0 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 MP2=FULL/6-31G*
ABC
0.06368 0.04773 0.02728

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

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 1.392 1.179
C4 0.000 -1.392 1.179
C5 0.000 0.697 2.385
C6 0.000 -0.697 2.385
Cl7 0.000 1.601 -1.510
Cl8 0.000 -1.601 -1.510
H9 0.000 2.478 1.161
H10 0.000 -2.478 1.161
H11 0.000 1.248 3.321
H12 0.000 -1.248 3.321

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.39941.39572.41742.41772.79231.72992.73382.14193.39453.39863.8786
C21.39942.41741.39572.79232.41772.73381.72993.39452.14193.87863.3986
C31.39572.41742.78381.39152.41222.69654.02321.08593.86962.14693.3997
C42.41741.39572.78382.41221.39154.02322.69653.86961.08593.39972.1469
C52.41772.79231.39152.41221.39463.99764.52192.16013.40251.08632.1590
C62.79232.41772.41221.39151.39464.52193.99763.40252.16012.15901.0863
Cl71.72992.73382.69654.02323.99764.52193.20242.81104.87554.84335.6082
Cl82.73381.72994.02322.69654.52193.99763.20244.87552.81105.60824.8433
H92.14193.39451.08593.86962.16013.40252.81104.87554.95532.48514.3064
H103.39452.14193.86961.08593.40252.16014.87552.81104.95534.30642.4851
H113.39863.87862.14693.39971.08632.15904.84335.60822.48514.30642.4961
H123.87863.39863.39972.14692.15901.08635.60824.84334.30642.48512.4961

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 119.778 C1 C2 Cl8 121.773
C1 C3 C5 120.288 C1 C3 H9 118.998
C2 C1 C3 119.778 C2 C1 Cl7 121.773
C2 C4 C6 120.288 C2 C4 H10 118.998
C3 C1 Cl7 118.449 C3 C5 C6 119.934
C3 C5 H11 119.636 C4 C2 Cl8 118.449
C4 C6 C5 119.934 C4 C6 H12 119.636
C5 C3 H9 120.714 C5 C6 H12 120.429
C6 C4 H10 120.714 C6 C5 H11 120.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability