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

using model chemistry: QCISD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/aug-cc-pVDZ
 hartrees
Energy at 0K-1149.714105
Energy at 298.15K-1149.718198
HF Energy-1148.563866
Nuclear repulsion energy465.303913
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 QCISD/aug-cc-pVDZ
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 3233 3132 5.29      
2 A1 3216 3116 5.35      
3 A1 1629 1578 5.66      
4 A1 1487 1440 54.19      
5 A1 1271 1231 1.06      
6 A1 1173 1136 13.47      
7 A1 1162 1126 23.15      
8 A1 1056 1023 6.08      
9 A1 666 645 12.86      
10 A1 481 465 5.15      
11 A1 200 193 0.01      
12 A2 936 906 0.00      
13 A2 851 825 0.00      
14 A2 569 551 0.00      
15 A2 499 484 0.00      
16 A2 136 132 0.00      
17 B1 939 909 1.03      
18 B1 762 738 62.40      
19 B1 435 421 4.63      
20 B1 234 226 1.13      
21 B2 3228 3127 3.32      
22 B2 3203 3103 1.00      
23 B2 1633 1581 7.46      
24 B2 1438 1393 16.27      
25 B2 1266 1226 2.70      
26 B2 1144 1108 2.01      
27 B2 1026 994 32.68      
28 B2 744 720 13.71      
29 B2 422 409 0.40      
30 B2 334 323 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 17683.5 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 17130.1 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 QCISD/aug-cc-pVDZ
ABC
0.06266 0.04685 0.02681

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.704 -0.029
C2 0.000 -0.704 -0.029
C3 0.000 1.405 1.190
C4 0.000 -1.405 1.190
C5 0.000 0.703 2.405
C6 0.000 -0.703 2.405
Cl7 0.000 1.614 -1.524
Cl8 0.000 -1.614 -1.524
H9 0.000 2.498 1.172
H10 0.000 -2.498 1.172
H11 0.000 1.257 3.349
H12 0.000 -1.257 3.349

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40771.40662.43612.43482.81231.75012.75792.15893.41953.42303.9059
C21.40772.43611.40662.81232.43482.75791.75013.41952.15893.90593.4230
C31.40662.43612.81041.40362.43402.72234.05961.09283.90312.16393.4276
C42.43611.40662.81042.43401.40364.05962.72233.90311.09283.42762.1639
C52.43482.81231.40362.43401.40694.03394.56212.17773.43081.09372.1756
C62.81232.43482.43401.40361.40694.56214.03393.43082.17772.17561.0937
Cl71.75012.75792.72234.05964.03394.56213.22732.83734.91664.88615.6558
Cl82.75791.75014.05962.72234.56214.03393.22734.91662.83735.65584.8861
H92.15893.41951.09283.90312.17773.43082.83734.91664.99572.50584.3404
H103.41952.15893.90311.09283.43082.17774.91662.83734.99574.34042.5058
H113.42303.90592.16393.42761.09372.17564.88615.65582.50584.34042.5141
H123.90593.42303.42762.16392.17561.09375.65584.88614.34042.50582.5141

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 119.909 C1 C2 Cl8 121.322
C1 C3 C5 120.093 C1 C3 H9 118.953
C2 C1 C3 119.909 C2 C1 Cl7 121.322
C2 C4 C6 120.093 C2 C4 H10 118.953
C3 C1 Cl7 118.769 C3 C5 C6 119.998
C3 C5 H11 119.591 C4 C2 Cl8 118.769
C4 C6 C5 119.998 C4 C6 H12 119.591
C5 C3 H9 120.954 C5 C6 H12 120.411
C6 C4 H10 120.954 C6 C5 H11 120.411
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability