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

using model chemistry: MP2=FULL/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 MP2=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-1149.703651
Energy at 298.15K-1149.707701
HF Energy-1148.564135
Nuclear repulsion energy466.453146
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 MP2=FULL/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 3246 3146 4.83      
2 A1 3231 3131 2.63      
3 A1 1602 1553 5.25      
4 A1 1477 1432 8.68      
5 A1 1451 1407 50.13      
6 A1 1169 1133 9.43      
7 A1 1157 1121 30.74      
8 A1 1049 1017 7.05      
9 A1 659 639 13.06      
10 A1 480 465 4.69      
11 A1 198 192 0.01      
12 A2 917 889 0.00      
13 A2 835 809 0.00      
14 A2 562 545 0.00      
15 A2 499 484 0.00      
16 A2 134 130 0.00      
17 B1 918 890 0.86      
18 B1 752 729 65.19      
19 B1 433 419 4.93      
20 B1 233 226 1.32      
21 B2 3240 3140 1.48      
22 B2 3220 3121 0.79      
23 B2 1600 1551 7.51      
24 B2 1412 1369 16.22      
25 B2 1248 1209 2.58      
26 B2 1133 1098 1.58      
27 B2 1016 984 34.96      
28 B2 742 719 13.15      
29 B2 417 404 0.19      
30 B2 331 321 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 17679.9 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 17135.3 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/aug-cc-pVDZ
ABC
0.06323 0.04699 0.02696

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.705 -0.031
C2 0.000 -0.705 -0.031
C3 0.000 1.405 1.188
C4 0.000 -1.405 1.188
C5 0.000 0.703 2.403
C6 0.000 -0.703 2.403
Cl7 0.000 1.603 -1.522
Cl8 0.000 -1.603 -1.522
H9 0.000 2.497 1.168
H10 0.000 -2.497 1.168
H11 0.000 1.256 3.345
H12 0.000 -1.256 3.345

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40951.40582.43652.43392.81171.74042.74732.15633.41863.42063.9040
C21.40952.43651.40582.81172.43392.74731.74043.41862.15633.90403.4206
C31.40582.43652.80971.40312.43282.71694.04841.09193.90152.16193.4252
C42.43651.40582.80972.43281.40314.04842.71693.90151.09193.42522.1619
C52.43392.81171.40312.43281.40584.02654.55192.17733.42931.09232.1737
C62.81172.43392.43281.40311.40584.55194.02653.42932.17732.17371.0923
Cl71.74042.74732.71694.04844.02654.55193.20612.83474.90344.87885.6442
Cl82.74731.74044.04842.71694.55194.02653.20614.90342.83475.64424.8788
H92.15633.41861.09193.90152.17733.42932.83474.90344.99312.50504.3380
H103.41862.15633.90151.09193.42932.17734.90342.83474.99314.33802.5050
H113.42063.90402.16193.42521.09232.17374.87885.64422.50504.33802.5122
H123.90403.42063.42522.16192.17371.09235.64424.87884.33802.50502.5122

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 119.870 C1 C2 Cl8 121.075
C1 C3 C5 120.112 C1 C3 H9 118.846
C2 C1 C3 119.870 C2 C1 Cl7 121.075
C2 C4 C6 120.112 C2 C4 H10 118.846
C3 C1 Cl7 119.055 C3 C5 C6 120.019
C3 C5 H11 119.556 C4 C2 Cl8 119.055
C4 C6 C5 120.019 C4 C6 H12 119.556
C5 C3 H9 121.042 C5 C6 H12 120.425
C6 C4 H10 121.042 C6 C5 H11 120.425
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability