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

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-1148.980962
Energy at 298.15K-1148.984937
HF Energy-1148.365423
Nuclear repulsion energy457.481392
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 MP2/6-31G
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 3229 3090 9.30      
2 A1 3210 3071 6.82      
3 A1 1608 1538 2.43      
4 A1 1506 1441 41.97      
5 A1 1376 1317 0.01      
6 A1 1231 1178 0.08      
7 A1 1154 1104 22.23      
8 A1 1054 1009 6.98      
9 A1 671 642 12.73      
10 A1 453 434 8.03      
11 A1 194 185 0.00      
12 A2 867 830 0.00      
13 A2 831 795 0.00      
14 A2 580 555 0.00      
15 A2 493 472 0.00      
16 A2 133 127 0.00      
17 B1 879 841 2.76      
18 B1 751 719 78.19      
19 B1 442 423 5.68      
20 B1 227 218 0.93      
21 B2 3222 3083 4.51      
22 B2 3196 3058 1.86      
23 B2 1609 1539 6.58      
24 B2 1478 1414 14.97      
25 B2 1313 1256 2.66      
26 B2 1164 1114 1.99      
27 B2 1052 1007 38.57      
28 B2 741 709 17.52      
29 B2 415 397 0.74      
30 B2 329 315 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 17704.1 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 16939.2 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 MP2/6-31G
ABC
0.06013 0.04522 0.02581

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.702 -0.002
C2 0.000 -0.702 -0.002
C3 0.000 1.409 1.216
C4 0.000 -1.409 1.216
C5 0.000 0.706 2.438
C6 0.000 -0.706 2.438
Cl7 0.000 1.662 -1.558
Cl8 0.000 -1.662 -1.558
H9 0.000 2.497 1.197
H10 0.000 -2.497 1.197
H11 0.000 1.259 3.377
H12 0.000 -1.259 3.377

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40461.40832.43722.44062.81771.82762.83002.15923.41733.42513.9075
C21.40462.43721.40832.81772.44062.83001.82763.41732.15923.90753.4251
C31.40832.43722.81711.40982.44232.78544.13781.08903.90602.16633.4333
C42.43721.40832.81712.44231.40984.13782.78543.90601.08903.43332.1663
C52.44062.81771.40982.44231.41194.10884.64492.17913.43521.08982.1780
C62.81772.44062.44231.40981.41194.64494.10883.43522.17912.17801.0898
Cl71.82762.83002.78544.13784.10884.64493.32372.87924.98914.95145.7347
Cl82.83001.82764.13782.78544.64494.10883.32374.98912.87925.73474.9514
H92.15923.41731.08903.90602.17913.43522.87924.98914.99482.50684.3432
H103.41732.15923.90601.08903.43522.17914.98912.87924.99484.34322.5068
H113.42513.90752.16633.43331.08982.17804.95145.73472.50684.34322.5185
H123.90753.42513.43332.16632.17801.08985.73474.95144.34322.50682.5185

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 120.100 C1 C2 Cl8 121.670
C1 C3 C5 120.007 C1 C3 H9 119.128
C2 C1 C3 120.100 C2 C1 Cl7 121.670
C2 C4 C6 120.007 C2 C4 H10 119.128
C3 C1 Cl7 118.229 C3 C5 C6 119.893
C3 C5 H11 119.599 C4 C2 Cl8 118.229
C4 C6 C5 119.893 C4 C6 H12 119.599
C5 C3 H9 120.866 C5 C6 H12 120.509
C6 C4 H10 120.866 C6 C5 H11 120.509
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability