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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-1150.116362
Energy at 298.15K-1150.108754
HF Energy-1148.493877
Nuclear repulsion energy470.421369
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 CBS-Q
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 3394 3394 6.91      
2 A1 3375 3375 11.69      
3 A1 1768 1768 3.91      
4 A1 1629 1629 70.00      
5 A1 1309 1309 0.90      
6 A1 1251 1251 40.25      
7 A1 1194 1194 1.66      
8 A1 1135 1135 7.34      
9 A1 721 721 18.12      
10 A1 516 516 8.10      
11 A1 218 218 0.00      
12 A2 1105 1105 0.00      
13 A2 973 973 0.00      
14 A2 783 783 0.00      
15 A2 568 568 0.00      
16 A2 151 151 0.00      
17 B1 1068 1068 2.20      
18 B1 847 847 64.93      
19 B1 492 492 4.53      
20 B1 258 258 0.60      
21 B2 3390 3390 6.93      
22 B2 3359 3359 1.91      
23 B2 1783 1783 6.46      
24 B2 1588 1588 23.74      
25 B2 1386 1386 3.91      
26 B2 1241 1241 4.13      
27 B2 1128 1128 41.11      
28 B2 804 804 20.15      
29 B2 461 461 0.86      
30 B2 364 364 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 19129.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19129.8 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 CBS-Q
ABC
0.06329 0.04743 0.02711

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.694 -0.029
C2 0.000 -0.694 -0.029
C3 0.000 1.384 1.176
C4 0.000 -1.384 1.176
C5 0.000 0.694 2.375
C6 0.000 -0.694 2.375
Cl7 0.000 1.609 -1.506
Cl8 0.000 -1.609 -1.506
H9 0.000 2.460 1.161
H10 0.000 -2.460 1.161
H11 0.000 1.239 3.304
H12 0.000 -1.239 3.304

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.38861.38852.40262.40362.77561.73692.73592.12953.37163.37683.8529
C21.38862.40261.38852.77562.40362.73591.73693.37162.12953.85293.3768
C31.38852.40262.76871.38342.39902.69094.01871.07613.84472.13253.3780
C42.40261.38852.76872.39901.38344.01872.69093.84471.07613.37802.1325
C52.40362.77561.38342.39901.38733.98674.51202.14343.37951.07732.1446
C62.77562.40362.39901.38341.38734.51203.98673.37952.14342.14461.0773
Cl71.73692.73592.69094.01873.98674.51203.21792.79914.86514.82335.5893
Cl82.73591.73694.01872.69094.51203.98673.21794.86512.79915.58934.8233
H92.12953.37161.07613.84472.14343.37952.79914.86514.92062.46614.2753
H103.37162.12953.84471.07613.37952.14344.86512.79914.92064.27532.4661
H113.37683.85292.13253.37801.07732.14464.82335.58932.46614.27532.4787
H123.85293.37683.37802.13252.14461.07735.58934.82334.27532.46612.4787

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 119.800 C1 C2 Cl8 121.775
C1 C3 C5 120.251 C1 C3 H9 119.001
C2 C1 C3 119.800 C2 C1 Cl7 121.775
C2 C4 C6 120.251 C2 C4 H10 119.001
C3 C1 Cl7 118.425 C3 C5 C6 119.950
C3 C5 H11 119.618 C4 C2 Cl8 118.425
C4 C6 C5 119.950 C4 C6 H12 119.618
C5 C3 H9 120.748 C5 C6 H12 120.432
C6 C4 H10 120.748 C6 C5 H11 120.432
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability