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All results from a given calculation for C6H5Cl (chlorobenzene)

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-686.746280
Energy at 298.15K-686.751517
HF Energy-686.129625
Nuclear repulsion energy309.701393
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 QCISD/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 3192 3094 2.56      
2 A1 3175 3077 10.80      
3 A1 3151 3054 0.10      
4 A1 1595 1546 22.47      
5 A1 1530 1483 31.05      
6 A1 1236 1198 0.07      
7 A1 1103 1069 32.17      
8 A1 1057 1024 16.27      
9 A1 1015 984 0.49      
10 A1 705 683 21.03      
11 A1 395 383 4.81      
12 A2 958 929 0.00      
13 A2 851 825 0.00      
14 A2 419 406 0.00      
15 B1 950 921 0.08      
16 B1 917 889 5.21      
17 B1 757 734 71.10      
18 B1 687 665 22.52      
19 B1 477 463 9.57      
20 B1 190 184 0.07      
21 B2 3189 3090 4.86      
22 B2 3162 3064 7.51      
23 B2 1602 1553 3.56      
24 B2 1493 1447 7.21      
25 B2 1381 1339 0.64      
26 B2 1260 1222 0.72      
27 B2 1173 1136 0.44      
28 B2 1095 1061 2.09      
29 B2 650 630 0.25      
30 B2 273 265 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 19818.7 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 19208.3 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 QCISD/3-21G
ABC
0.18663 0.04963 0.03920

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 2.329
C2 0.000 0.000 0.477
C3 0.000 1.223 -0.197
C4 0.000 -1.223 -0.197
C5 0.000 1.219 -1.605
C6 0.000 -1.219 -1.605
C7 0.000 0.000 -2.310
H8 0.000 2.155 0.363
H9 0.000 -2.155 0.363
H10 0.000 2.165 -2.144
H11 0.000 -2.165 -2.144
H12 0.000 0.000 -3.400

Atom - Atom Distances (Å)
  Cl1 C2 C3 C4 C5 C6 C7 H8 H9 H10 H11 H12
Cl11.85212.80662.80664.11864.11864.63942.91672.91674.96984.96985.7286
C21.85211.39621.39622.41252.41252.78722.15782.15783.39983.39983.8764
C32.80661.39622.44541.40802.81822.44131.08773.42382.16323.90753.4278
C42.80661.39622.44542.81821.40802.44133.42381.08773.90752.16323.4278
C54.11862.41251.40802.81822.43721.40792.17993.90581.08933.42642.1690
C64.11862.41252.81821.40802.43721.40793.90582.17993.42641.08932.1690
C74.63942.78722.44132.44131.40791.40793.43393.43392.17152.17151.0892
H82.91672.15781.08773.42382.17993.90583.43394.30972.50774.99514.3362
H92.91672.15783.42381.08773.90582.17993.43394.30974.99512.50774.3362
H104.96983.39982.16323.90751.08933.42642.17152.50774.99514.33032.5027
H114.96983.39983.90752.16323.42641.08932.17154.99512.50774.33032.5027
H125.72863.87643.42783.42782.16902.16901.08924.33624.33622.50272.5027

picture of chlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 C2 C3 118.870 Cl1 C2 C4 118.870
C2 C3 C5 118.703 C2 C3 H8 120.107
C2 C4 C6 118.703 C2 C4 H9 120.107
C3 C2 C4 122.261 C3 C5 C7 120.221
C3 C5 H10 119.499 C4 C6 C7 120.221
C4 C6 H11 119.499 C5 C3 H8 121.191
C5 C7 C6 119.891 C5 C7 H12 120.055
C6 C4 H9 121.191 C6 C7 H12 120.055
C7 C5 H10 120.280 C7 C6 H11 120.280
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability