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

using model chemistry: CISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/6-31G
 hartrees
Energy at 0K-1148.899780
Energy at 298.15K-1148.904159
HF Energy-1148.369634
Nuclear repulsion energy461.611325
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 CISD/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 3308 3102 7.13      
2 A1 3286 3082 8.25      
3 A1 1700 1595 2.86      
4 A1 1578 1479 48.98      
5 A1 1319 1237 0.12      
6 A1 1252 1174 0.07      
7 A1 1205 1130 23.26      
8 A1 1103 1034 6.00      
9 A1 701 657 15.39      
10 A1 477 448 9.00      
11 A1 203 190 0.00      
12 A2 984 923 0.00      
13 A2 921 863 0.00      
14 A2 726 681 0.00      
15 A2 544 510 0.00      
16 A2 143 134 0.00      
17 B1 994 932 3.82      
18 B1 811 760 80.88      
19 B1 476 446 7.13      
20 B1 245 230 0.88      
21 B2 3301 3096 3.90      
22 B2 3270 3067 2.07      
23 B2 1705 1599 6.34      
24 B2 1541 1445 18.34      
25 B2 1362 1277 2.63      
26 B2 1209 1134 2.25      
27 B2 1095 1026 42.19      
28 B2 770 722 19.90      
29 B2 433 406 0.91      
30 B2 344 322 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 18501.4 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 17350.7 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 CISD/6-31G
ABC
0.06119 0.04607 0.02628

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.695 -0.003
C2 0.000 -0.695 -0.003
C3 0.000 1.396 1.204
C4 0.000 -1.396 1.204
C5 0.000 0.700 2.416
C6 0.000 -0.700 2.416
Cl7 0.000 1.648 -1.543
Cl8 0.000 -1.648 -1.543
H9 0.000 2.477 1.187
H10 0.000 -2.477 1.187
H11 0.000 1.249 3.349
H12 0.000 -1.249 3.349

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.39091.39572.41472.41852.79201.81112.80422.14223.38823.39713.8747
C21.39092.41471.39572.79202.41852.80421.81113.38822.14223.87473.3971
C31.39572.41472.79131.39692.42022.75944.10041.08153.87282.14953.4045
C42.41471.39572.79132.42021.39694.10042.75943.87281.08153.40452.1495
C52.41852.79201.39692.42021.39934.07094.60262.16093.40611.08282.1602
C62.79202.41852.42021.39691.39934.60264.07093.40612.16092.16021.0828
Cl71.81112.80422.75944.10044.07094.60263.29552.85324.94644.90855.6853
Cl82.80421.81114.10042.75944.60264.07093.29554.94642.85325.68534.9085
H92.14223.38821.08153.87282.16093.40612.85324.94644.95412.48694.3076
H103.38822.14223.87281.08153.40612.16094.94642.85324.95414.30762.4869
H113.39713.87472.14953.40451.08282.16024.90855.68532.48694.30762.4971
H123.87473.39713.40452.14952.16021.08285.68534.90854.30762.48692.4971

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 120.111 C1 C2 Cl8 121.722
C1 C3 C5 120.003 C1 C3 H9 119.166
C2 C1 C3 120.111 C2 C1 Cl7 121.722
C2 C4 C6 120.003 C2 C4 H10 119.166
C3 C1 Cl7 118.166 C3 C5 C6 119.886
C3 C5 H11 119.654 C4 C2 Cl8 118.166
C4 C6 C5 119.886 C4 C6 H12 119.654
C5 C3 H9 120.831 C5 C6 H12 120.460
C6 C4 H10 120.831 C6 C5 H11 120.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability