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

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-1148.966640
Energy at 298.15K-1148.970416
HF Energy-1148.354356
Nuclear repulsion energy453.954336
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/SDD
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 3221 3110 16.71      
2 A1 3196 3085 6.44      
3 A1 1578 1524 2.03      
4 A1 1463 1412 40.33      
5 A1 1349 1303 0.24      
6 A1 1199 1158 0.08      
7 A1 1122 1083 20.55      
8 A1 1023 987 9.39      
9 A1 651 629 10.89      
10 A1 441 425 6.06      
11 A1 187 181 0.01      
12 A2 871 841 0.00      
13 A2 779 751 0.00      
14 A2 614 593 0.00      
15 A2 473 456 0.00      
16 A2 122 118 0.00      
17 B1 840 811 0.12      
18 B1 719 694 102.43      
19 B1 421 407 8.12      
20 B1 212 205 1.96      
21 B2 3211 3099 9.87      
22 B2 3180 3070 1.40      
23 B2 1579 1524 6.80      
24 B2 1442 1392 13.45      
25 B2 1286 1241 1.72      
26 B2 1137 1097 0.37      
27 B2 1029 993 35.47      
28 B2 720 695 16.54      
29 B2 404 390 0.65      
30 B2 319 307 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 17393.6 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 16790.1 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 MP2/SDD
ABC
0.05911 0.04460 0.02542

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.711 -0.007
C2 0.000 -0.711 -0.007
C3 0.000 1.425 1.225
C4 0.000 -1.425 1.225
C5 0.000 0.712 2.456
C6 0.000 -0.712 2.456
Cl7 0.000 1.675 -1.568
Cl8 0.000 -1.675 -1.568
H9 0.000 2.517 1.211
H10 0.000 -2.517 1.211
H11 0.000 1.265 3.399
H12 0.000 -1.265 3.399

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.42231.42362.46582.46242.84411.83492.85152.17853.45073.45043.9375
C21.42232.46581.42362.84412.46242.85151.83493.45072.17853.93753.4504
C31.42362.46582.84991.42232.46602.80434.17251.09263.94252.17983.4587
C42.46581.42362.84992.46601.42234.17252.80433.94251.09263.45872.1798
C52.46242.84411.42232.46601.42414.13754.67852.19293.46111.09342.1907
C62.84412.46242.46601.42231.42414.67854.13753.46112.19292.19071.0934
Cl71.83492.85152.80434.17254.13754.67853.34952.90425.02984.98395.7719
Cl82.85151.83494.17252.80434.67854.13753.34955.02982.90425.77194.9839
H92.17853.45071.09263.94252.19293.46112.90425.02985.03502.52094.3698
H103.45072.17853.94251.09263.46112.19295.02982.90425.03504.36982.5209
H113.45043.93752.17983.45871.09342.19074.98395.77192.52094.36982.5304
H123.93753.45043.45872.17982.19071.09345.77194.98394.36982.52092.5304

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 120.092 C1 C2 Cl8 121.679
C1 C3 C5 119.826 C1 C3 H9 119.360
C2 C1 C3 120.092 C2 C1 Cl7 121.679
C2 C4 C6 119.826 C2 C4 H10 119.360
C3 C1 Cl7 118.229 C3 C5 C6 120.082
C3 C5 H11 119.526 C4 C2 Cl8 118.229
C4 C6 C5 120.082 C4 C6 H12 119.526
C5 C3 H9 120.815 C5 C6 H12 120.392
C6 C4 H10 120.815 C6 C5 H11 120.392
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability