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

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-259.426384
Energy at 298.15K-259.430243
HF Energy-258.847008
Nuclear repulsion energy282.983068
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/LANL2DZ
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 3222 3103 17.29      
2 A1 3197 3079 5.92      
3 A1 1580 1521 1.86      
4 A1 1467 1412 40.86      
5 A1 1351 1301 0.32      
6 A1 1199 1155 0.07      
7 A1 1126 1084 21.22      
8 A1 1025 987 9.44      
9 A1 651 627 10.90      
10 A1 444 428 6.32      
11 A1 189 182 0.02      
12 A2 876 844 0.00      
13 A2 789 760 0.00      
14 A2 634 611 0.00      
15 A2 496 478 0.00      
16 A2 128 123 0.00      
17 B1 848 817 0.68      
18 B1 732 705 100.52      
19 B1 429 413 9.70      
20 B1 221 213 1.86      
21 B2 3211 3093 11.00      
22 B2 3182 3064 1.09      
23 B2 1583 1525 6.57      
24 B2 1443 1390 13.18      
25 B2 1286 1238 1.40      
26 B2 1139 1097 0.42      
27 B2 1030 992 34.19      
28 B2 722 695 16.49      
29 B2 407 392 0.78      
30 B2 320 308 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 17462.9 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 16818.5 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/LANL2DZ
ABC
0.05931 0.04480 0.02552

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.711 -0.011
C2 0.000 -0.711 -0.011
C3 0.000 1.424 1.221
C4 0.000 -1.424 1.221
C5 0.000 0.712 2.453
C6 0.000 -0.712 2.453
Cl7 0.000 1.671 -1.563
Cl8 0.000 -1.671 -1.563
H9 0.000 2.516 1.207
H10 0.000 -2.516 1.207
H11 0.000 1.266 3.396
H12 0.000 -1.266 3.396

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.42281.42372.46542.46412.84571.82472.84332.17803.45033.45193.9392
C21.42282.46541.42372.84572.46412.84331.82473.45032.17803.93923.4519
C31.42372.46542.84731.42222.46532.79574.16311.09293.94012.18013.4583
C42.46541.42372.84732.46531.42224.16312.79573.94011.09293.45832.1801
C52.46412.84571.42222.46531.42424.12904.66992.19243.46041.09352.1910
C62.84572.46412.46531.42221.42424.66994.12903.46042.19242.19101.0935
Cl71.82472.84332.79574.16314.12904.66993.34182.89705.02114.97575.7633
Cl82.84331.82474.16312.79574.66994.12903.34185.02112.89705.76334.9757
H92.17803.45031.09293.94012.19243.46042.89705.02115.03302.52064.3695
H103.45032.17803.94011.09293.46042.19245.02112.89705.03304.36952.5206
H113.45193.93922.18013.45831.09352.19104.97575.76332.52064.36952.5312
H123.93923.45193.45832.18012.19101.09355.76334.97574.36952.52062.5312

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 120.017 C1 C2 Cl8 121.725
C1 C3 C5 119.961 C1 C3 H9 119.288
C2 C1 C3 120.017 C2 C1 Cl7 121.725
C2 C4 C6 119.961 C2 C4 H10 119.288
C3 C1 Cl7 118.257 C3 C5 C6 120.022
C3 C5 H11 119.566 C4 C2 Cl8 118.257
C4 C6 C5 120.022 C4 C6 H12 119.566
C5 C3 H9 120.751 C5 C6 H12 120.413
C6 C4 H10 120.751 C6 C5 H11 120.413
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability