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All results from a given calculation for C6H4Cl2 (1,3-dichlorobenzene)

using model chemistry: CISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/3-21G
 hartrees
Energy at 0K-1143.382949
Energy at 298.15K-1143.387381
HF Energy-1142.845227
Nuclear repulsion energy446.306248
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 CISD/3-21G
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 3323 3128 3.27      
2 A1 3313 3119 0.79      
3 A1 3281 3089 2.49      
4 A1 1679 1581 27.42      
5 A1 1516 1427 13.62      
6 A1 1196 1126 13.80      
7 A1 1143 1076 18.66      
8 A1 1074 1011 4.60      
9 A1 715 673 1.96      
10 A1 397 374 4.08      
11 A1 188 177 0.96      
12 A2 1000 942 0.00      
13 A2 585 551 0.00      
14 A2 220 208 0.00      
15 B1 1046 985 0.14      
16 B1 995 936 20.36      
17 B1 862 812 45.81      
18 B1 736 693 36.76      
19 B1 478 450 6.19      
20 B1 178 168 0.01      
21 B2 3306 3112 0.03      
22 B2 1675 1577 77.19      
23 B2 1577 1485 42.88      
24 B2 1414 1331 1.98      
25 B2 1299 1222 0.27      
26 B2 1230 1158 0.21      
27 B2 1159 1091 17.85      
28 B2 798 751 75.72      
29 B2 442 416 6.60      
30 B2 357 336 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 18591.3 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 17500.0 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 CISD/3-21G
ABC
0.09210 0.02755 0.02120

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.095
C2 0.000 1.211 1.402
C3 0.000 -1.211 1.402
C4 0.000 1.186 0.018
C5 0.000 -1.186 0.018
C6 0.000 0.000 -0.698
Cl7 0.000 2.762 -0.902
Cl8 0.000 -2.762 -0.902
H9 0.000 0.000 3.174
H10 0.000 2.153 1.926
H11 0.000 -2.153 1.926
H12 0.000 0.000 -1.775

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.39481.39482.39162.39162.79234.07564.07561.07982.15952.15953.8695
C21.39482.42121.38452.76742.42362.77784.59272.14651.07843.40413.3997
C31.39482.42122.76741.38452.42364.59272.77782.14653.40411.07843.3997
C42.39161.38452.76742.37131.38471.82544.05383.37212.13973.84562.1492
C52.39162.76741.38452.37131.38474.05381.82543.37213.84562.13972.1492
C62.79232.42362.42361.38471.38472.77002.77003.87213.39413.39411.0772
Cl74.07562.77784.59271.82544.05382.77005.52504.92422.89315.67102.8972
Cl84.07564.59272.77784.05381.82542.77005.52504.92425.67102.89312.8972
H91.07982.14652.14653.37213.37213.87214.92424.92422.48862.48864.9494
H102.15951.07843.40412.13973.84563.39412.89315.67102.48864.30594.2818
H112.15953.40411.07843.84562.13973.39415.67102.89312.48864.30594.2818
H123.86953.39973.39972.14922.14921.07722.89722.89724.94944.28184.2818

picture of 1,3-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 118.745 C1 C2 H10 121.133
C1 C3 C5 118.745 C1 C3 H11 121.133
C2 C1 C3 120.445 C2 C1 H9 119.777
C2 C4 C6 122.135 C2 C4 Cl7 119.217
C3 C1 H9 119.777 C3 C5 C6 122.135
C3 C5 Cl8 119.217 C4 C2 H10 120.122
C4 C6 C5 117.795 C4 C6 H12 121.103
C5 C3 H11 120.122 C5 C6 H12 121.103
C6 C4 Cl7 118.649 C6 C5 Cl8 118.649
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability