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

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-1149.608614
Energy at 298.15K-1149.612746
HF Energy-1148.553812
Nuclear repulsion energy466.364984
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/cc-pVDZ
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 3255 3100 4.82      
2 A1 3240 3086 3.06      
3 A1 1623 1546 3.99      
4 A1 1495 1424 45.13      
5 A1 1460 1391 18.45      
6 A1 1176 1120 16.79      
7 A1 1167 1111 22.61      
8 A1 1059 1009 6.22      
9 A1 666 635 13.53      
10 A1 486 463 4.83      
11 A1 200 191 0.01      
12 A2 948 903 0.00      
13 A2 853 812 0.00      
14 A2 596 568 0.00      
15 A2 503 479 0.00      
16 A2 136 129 0.00      
17 B1 931 887 0.98      
18 B1 759 723 56.59      
19 B1 436 415 4.57      
20 B1 233 222 1.15      
21 B2 3249 3095 1.94      
22 B2 3228 3074 0.69      
23 B2 1634 1556 7.01      
24 B2 1456 1387 17.23      
25 B2 1267 1207 3.13      
26 B2 1150 1096 1.69      
27 B2 1044 995 34.00      
28 B2 755 719 14.17      
29 B2 431 410 0.26      
30 B2 337 321 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 17886.3 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 17036.7 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/cc-pVDZ
ABC
0.06290 0.04710 0.02693

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.705 -0.035
C2 0.000 -0.705 -0.035
C3 0.000 1.402 1.186
C4 0.000 -1.402 1.186
C5 0.000 0.702 2.401
C6 0.000 -0.702 2.401
Cl7 0.000 1.610 -1.519
Cl8 0.000 -1.610 -1.519
H9 0.000 2.496 1.167
H10 0.000 -2.496 1.167
H11 0.000 1.258 3.344
H12 0.000 -1.258 3.344

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.41091.40632.43612.43662.81411.73772.75002.15693.41983.42443.9084
C21.41092.43611.40632.81412.43662.75001.73773.41982.15693.90843.4244
C31.40632.43612.80461.40222.43042.71324.04871.09383.89832.16303.4255
C42.43611.40632.80462.43041.40224.04872.71323.89831.09383.42552.1630
C52.43662.81411.40222.43041.40504.02404.55152.17703.42821.09442.1753
C62.81412.43662.43041.40221.40504.55154.02403.42822.17702.17531.0944
Cl71.73772.75002.71324.04874.02404.55153.21992.82864.90664.87615.6459
Cl82.75001.73774.04872.71324.55154.02403.21994.90662.82865.64594.8761
H92.15693.41981.09383.89832.17703.42822.82864.90664.99192.50454.3394
H103.41982.15693.89831.09383.42822.17704.90662.82864.99194.33942.5045
H113.42443.90842.16303.42551.09442.17534.87615.64592.50454.33942.5156
H123.90843.42443.42552.16302.17531.09445.64594.87614.33942.50452.5156

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 119.707 C1 C2 Cl8 121.366
C1 C3 C5 120.353 C1 C3 H9 118.716
C2 C1 C3 119.707 C2 C1 Cl7 121.366
C2 C4 C6 120.353 C2 C4 H10 118.716
C3 C1 Cl7 118.927 C3 C5 C6 119.940
C3 C5 H11 119.567 C4 C2 Cl8 118.927
C4 C6 C5 119.940 C4 C6 H12 119.567
C5 C3 H9 120.931 C5 C6 H12 120.493
C6 C4 H10 120.931 C6 C5 H11 120.493
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability