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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-1149.567189
Energy at 298.15K 
HF Energy-1148.509181
Nuclear repulsion energy468.657679
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 MP2/6-31+G**
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 3285 3090 6.74      
2 A1 3270 3076 3.21      
3 A1 1635 1538 4.55      
4 A1 1515 1425 51.45      
5 A1 1454 1367 7.04      
6 A1 1205 1133 0.36      
7 A1 1179 1109 41.15      
8 A1 1071 1007 9.13      
9 A1 676 635 13.45      
10 A1 490 461 5.05      
11 A1 205 193 0.02      
12 A2 877 825 0.00      
13 A2 814 766 0.00      
14 A2 414 390 0.00      
15 A2 119 112 0.00      
16 A2 901i 847i 0.00      
17 B1 879 827 0.43      
18 B1 741 697 81.83      
19 B1 387 364 3.75      
20 B1 213 200 1.89      
21 B2 3279 3084 3.25      
22 B2 3260 3066 0.70      
23 B2 1647 1549 9.41      
24 B2 1480 1392 17.06      
25 B2 1295 1218 3.49      
26 B2 1170 1101 2.04      
27 B2 1056 993 37.55      
28 B2 764 718 13.64      
29 B2 433 408 0.22      
30 B2 341 320 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 17125.6 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 16108.3 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 MP2/6-31+G**
ABC
0.06342 0.04758 0.02718

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.701 -0.035
C2 0.000 -0.701 -0.035
C3 0.000 1.395 1.180
C4 0.000 -1.395 1.180
C5 0.000 0.699 2.389
C6 0.000 -0.699 2.389
Cl7 0.000 1.605 -1.512
Cl8 0.000 -1.605 -1.512
H9 0.000 2.477 1.164
H10 0.000 -2.477 1.164
H11 0.000 1.248 3.322
H12 0.000 -1.248 3.322

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40271.39902.42272.42402.79941.73122.73852.14213.39663.40103.8818
C21.40272.42271.39902.79942.42402.73851.73123.39662.14213.88183.4010
C31.39902.42272.78911.39472.41742.70024.03031.08233.87122.14653.4016
C42.42271.39902.78912.41741.39474.03032.70023.87121.08233.40162.1465
C52.42402.79941.39472.41741.39794.00464.53032.15913.40381.08252.1591
C62.79942.42402.41741.39471.39794.53034.00463.40382.15912.15911.0825
Cl71.73122.73852.70024.03034.00464.53033.20962.81394.88024.84665.6128
Cl82.73851.73124.03032.70024.53034.00463.20964.88022.81395.61284.8466
H92.14213.39661.08233.87122.15913.40382.81394.88024.95332.48314.3049
H103.39662.14213.87121.08233.40382.15914.88022.81394.95334.30492.4831
H113.40103.88182.14653.40161.08252.15914.84665.61282.48314.30492.4966
H123.88183.40103.40162.14652.15911.08255.61284.84664.30492.48312.4966

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 119.702 C1 C2 Cl8 121.458
C1 C3 C5 120.380 C1 C3 H9 118.828
C2 C1 C3 119.702 C2 C1 Cl7 121.458
C2 C4 C6 120.380 C2 C4 H10 118.828
C3 C1 Cl7 118.840 C3 C5 C6 119.918
C3 C5 H11 119.584 C4 C2 Cl8 118.840
C4 C6 C5 119.918 C4 C6 H12 119.584
C5 C3 H9 120.792 C5 C6 H12 120.498
C6 C4 H10 120.792 C6 C5 H11 120.498
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability