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

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-1149.954253
Energy at 298.15K-1149.958419
HF Energy-1148.635564
Nuclear repulsion energy470.904684
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/Def2TZVPP
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 3246 3089 3.70      
2 A1 3231 3074 2.26      
3 A1 1611 1533 3.70      
4 A1 1492 1420 50.18      
5 A1 1451 1381 10.72      
6 A1 1183 1125 3.38      
7 A1 1164 1107 38.52      
8 A1 1057 1006 7.10      
9 A1 669 636 13.04      
10 A1 487 463 4.56      
11 A1 201 191 0.02      
12 A2 938 893 0.00      
13 A2 858 817 0.00      
14 A2 619 589 0.00      
15 A2 512 487 0.00      
16 A2 137 131 0.00      
17 B1 940 894 1.56      
18 B1 767 730 64.67      
19 B1 444 423 4.86      
20 B1 235 224 1.27      
21 B2 3240 3083 0.97      
22 B2 3219 3063 0.68      
23 B2 1619 1540 6.45      
24 B2 1457 1386 16.58      
25 B2 1270 1208 3.32      
26 B2 1152 1096 1.36      
27 B2 1046 995 32.54      
28 B2 757 720 13.95      
29 B2 433 412 0.30      
30 B2 338 321 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 17886.1 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 17018.6 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/Def2TZVPP
ABC
0.06441 0.04790 0.02747

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.698 -0.032
C2 0.000 -0.698 -0.032
C3 0.000 1.392 1.177
C4 0.000 -1.392 1.177
C5 0.000 0.697 2.382
C6 0.000 -0.697 2.382
Cl7 0.000 1.590 -1.508
Cl8 0.000 -1.590 -1.508
H9 0.000 2.473 1.158
H10 0.000 -2.473 1.158
H11 0.000 1.245 3.314
H12 0.000 -1.245 3.314

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.39561.39482.41492.41442.78851.72422.72222.13733.38683.39083.8695
C21.39562.41491.39482.78852.41442.72221.72423.38682.13733.86953.3908
C31.39482.41492.78491.39112.41232.69234.01291.08073.86552.14203.3946
C42.41491.39482.78492.41231.39114.01292.69233.86551.08073.39462.1420
C52.41442.78851.39112.41231.39473.99114.51252.15673.39841.08102.1545
C62.78852.41442.41231.39111.39474.51253.99113.39842.15672.15451.0810
Cl71.72422.72222.69234.01293.99114.51253.17952.80844.85934.83425.5936
Cl82.72221.72424.01292.69234.51253.99113.17954.85932.80845.59364.8342
H92.13733.38681.08073.86552.15673.39842.80844.85934.94592.48114.2980
H103.38682.13733.86551.08073.39842.15674.85932.80844.94594.29802.4811
H113.39083.86952.14203.39461.08102.15454.83425.59362.48114.29802.4903
H123.86953.39083.39462.14202.15451.08105.59364.83424.29802.48112.4903

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 119.872 C1 C2 Cl8 121.152
C1 C3 C5 120.149 C1 C3 H9 118.856
C2 C1 C3 119.872 C2 C1 Cl7 121.152
C2 C4 C6 120.149 C2 C4 H10 118.856
C3 C1 Cl7 118.976 C3 C5 C6 119.980
C3 C5 H11 119.573 C4 C2 Cl8 118.976
C4 C6 C5 119.980 C4 C6 H12 119.573
C5 C3 H9 120.995 C5 C6 H12 120.447
C6 C4 H10 120.995 C6 C5 H11 120.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability