return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H4Cl2 (1,3-dichlorobenzene)

using model chemistry: MP2=FULL/3-21G*

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/3-21G*
 hartrees
Energy at 0K-1143.882522
Energy at 298.15K-1143.886696
HF Energy-1143.056894
Nuclear repulsion energy448.888689
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/3-21G*
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 3235 3067 2.81      
2 A1 3232 3064 0.22      
3 A1 3208 3041 2.46      
4 A1 1577 1495 27.64      
5 A1 1444 1369 8.68      
6 A1 1153 1093 18.99      
7 A1 1104 1047 13.44      
8 A1 1030 976 0.39      
9 A1 695 659 1.59      
10 A1 400 379 3.29      
11 A1 199 188 0.50      
12 A2 884 838 0.00      
13 A2 537 509 0.00      
14 A2 207 197 0.00      
15 B1 931 883 0.07      
16 B1 854 809 10.54      
17 B1 775 735 78.15      
18 B1 658 624 5.76      
19 B1 446 423 5.14      
20 B1 171 162 0.12      
21 B2 3226 3059 0.15      
22 B2 1580 1498 66.62      
23 B2 1511 1433 43.70      
24 B2 1364 1293 1.98      
25 B2 1307 1239 0.07      
26 B2 1244 1179 0.92      
27 B2 1111 1054 23.59      
28 B2 797 755 65.95      
29 B2 440 417 5.34      
30 B2 371 352 0.44      

Unscaled Zero Point Vibrational Energy (zpe) 17845.3 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 16917.3 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/3-21G*
ABC
0.09271 0.02815 0.02159

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.094
C2 0.000 1.222 1.399
C3 0.000 -1.222 1.399
C4 0.000 1.204 -0.003
C5 0.000 -1.204 -0.003
C6 0.000 0.000 -0.720
Cl7 0.000 2.724 -0.889
Cl8 0.000 -2.724 -0.889
H9 0.000 0.000 3.180
H10 0.000 2.168 1.930
H11 0.000 -2.168 1.930
H12 0.000 0.000 -1.805

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40551.40552.41832.41832.81444.04004.04001.08602.17432.17433.8994
C21.40552.44311.40212.80182.44612.73774.56112.15981.08523.43093.4293
C31.40552.44312.80181.40212.44614.56112.73772.15983.43091.08523.4293
C42.41831.40212.80182.40831.40161.75934.02673.40332.15983.88692.1675
C52.41832.80181.40212.40831.40164.02671.75933.40333.88692.15982.1675
C62.81442.44612.44611.40161.40162.72902.72903.90043.42393.42391.0850
Cl74.04002.73774.56111.75934.02672.72905.44754.89722.87375.64622.8735
Cl84.04004.56112.73774.02671.75932.72905.44754.89725.64622.87372.8735
H91.08602.15982.15983.40333.40333.90044.89724.89722.50282.50284.9855
H102.17431.08523.43092.15983.88693.42392.87375.64622.50284.33624.3187
H112.17433.43091.08523.88692.15983.42395.64622.87372.50284.33624.3187
H123.89943.42933.42932.16752.16751.08502.87352.87354.98554.31874.3187

picture of 1,3-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 118.932 C1 C2 H10 121.079
C1 C3 C5 118.932 C1 C3 H11 121.079
C2 C1 C3 120.717 C2 C1 H9 119.642
C2 C4 C6 121.490 C2 C4 Cl7 119.554
C3 C1 H9 119.642 C3 C5 C6 121.490
C3 C5 Cl8 119.554 C4 C2 H10 119.989
C4 C6 C5 118.440 C4 C6 H12 120.780
C5 C3 H11 119.989 C5 C6 H12 120.780
C6 C4 Cl7 118.956 C6 C5 Cl8 118.956
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability