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

using model chemistry: CCSD/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 CCSD/cc-pVDZ
 hartrees
Energy at 0K-1149.653598
Energy at 298.15K-1149.657791
HF Energy-1148.553868
Nuclear repulsion energy465.771801
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 CCSD/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 3247 3076 5.20      
2 A1 3230 3060 5.58      
3 A1 1649 1562 4.24      
4 A1 1512 1432 57.32      
5 A1 1286 1218 1.38      
6 A1 1180 1118 24.67      
7 A1 1170 1108 10.28      
8 A1 1066 1010 5.28      
9 A1 672 637 13.37      
10 A1 487 461 5.03      
11 A1 201 191 0.00      
12 A2 970 919 0.00      
13 A2 870 824 0.00      
14 A2 634 600 0.00      
15 A2 510 483 0.00      
16 A2 138 130 0.00      
17 B1 954 903 1.16      
18 B1 769 729 54.67      
19 B1 442 419 4.52      
20 B1 236 223 1.00      
21 B2 3242 3071 3.80      
22 B2 3216 3047 0.94      
23 B2 1663 1575 6.63      
24 B2 1474 1397 16.87      
25 B2 1280 1213 3.04      
26 B2 1157 1096 2.06      
27 B2 1051 996 31.80      
28 B2 755 715 14.12      
29 B2 431 408 0.40      
30 B2 338 320 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 17914.0 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 16969.9 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 CCSD/cc-pVDZ
ABC
0.06259 0.04704 0.02685

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.704 -0.033
C2 0.000 -0.704 -0.033
C3 0.000 1.402 1.187
C4 0.000 -1.402 1.187
C5 0.000 0.703 2.402
C6 0.000 -0.703 2.402
Cl7 0.000 1.616 -1.521
Cl8 0.000 -1.616 -1.521
H9 0.000 2.496 1.169
H10 0.000 -2.496 1.169
H11 0.000 1.258 3.346
H12 0.000 -1.258 3.346

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40811.40592.43402.43562.81261.74462.75592.15793.41823.42443.9075
C21.40812.43401.40592.81262.43562.75591.74463.41822.15793.90753.4244
C31.40592.43402.80351.40192.42992.71624.05461.09403.89742.16363.4254
C42.43401.40592.80352.42991.40194.05462.71623.89741.09403.42542.1636
C52.43562.81261.40192.42991.40504.02784.55682.17603.42751.09502.1756
C62.81262.43562.42991.40191.40504.55684.02783.42752.17602.17561.0950
Cl71.74462.75592.71624.05464.02784.55683.23242.83004.91354.87975.6518
Cl82.75591.74464.05462.71624.55684.02783.23244.91352.83005.65184.8797
H92.15793.41821.09403.89742.17603.42752.83004.91354.99122.50394.3388
H103.41822.15793.89741.09403.42752.17604.91352.83004.99124.33882.5039
H113.42443.90752.16363.42541.09502.17564.87975.65182.50394.33882.5156
H123.90753.42443.42542.16362.17561.09505.65184.87974.33882.50392.5156

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 119.754 C1 C2 Cl8 121.524
C1 C3 C5 120.327 C1 C3 H9 118.823
C2 C1 C3 119.754 C2 C1 Cl7 121.524
C2 C4 C6 120.327 C2 C4 H10 118.823
C3 C1 Cl7 118.722 C3 C5 C6 119.919
C3 C5 H11 119.608 C4 C2 Cl8 118.722
C4 C6 C5 119.919 C4 C6 H12 119.608
C5 C3 H9 120.851 C5 C6 H12 120.473
C6 C4 H10 120.851 C6 C5 H11 120.473
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability