return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H5Cl (chlorobenzene)

using model chemistry: CCD/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 CCD/3-21G
 hartrees
Energy at 0K-686.738821
Energy at 298.15K-686.744079
HF Energy-686.130187
Nuclear repulsion energy310.108419
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 CCD/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 3201 3112 2.54      
2 A1 3184 3096 10.72      
3 A1 3161 3073 0.09      
4 A1 1607 1562 22.62      
5 A1 1537 1495 30.57      
6 A1 1241 1207 0.12      
7 A1 1114 1083 30.51      
8 A1 1064 1035 14.68      
9 A1 1022 994 0.47      
10 A1 712 692 18.80      
11 A1 399 388 4.03      
12 A2 957 930 0.00      
13 A2 851 828 0.00      
14 A2 420 409 0.00      
15 B1 948 921 0.09      
16 B1 916 890 5.37      
17 B1 757 736 72.33      
18 B1 687 668 21.75      
19 B1 479 465 9.67      
20 B1 190 185 0.07      
21 B2 3197 3109 5.03      
22 B2 3171 3083 7.44      
23 B2 1612 1568 3.94      
24 B2 1499 1458 7.06      
25 B2 1387 1349 0.51      
26 B2 1266 1231 0.68      
27 B2 1178 1146 0.30      
28 B2 1101 1071 2.31      
29 B2 653 635 0.26      
30 B2 275 268 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 19893.0 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 19341.9 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 CCD/3-21G
ABC
0.18710 0.04977 0.03931

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 2.325
C2 0.000 0.000 0.478
C3 0.000 1.221 -0.197
C4 0.000 -1.221 -0.197
C5 0.000 1.217 -1.603
C6 0.000 -1.217 -1.603
C7 0.000 0.000 -2.308
H8 0.000 2.153 0.363
H9 0.000 -2.153 0.363
H10 0.000 2.163 -2.142
H11 0.000 -2.163 -2.142
H12 0.000 0.000 -3.396

Atom - Atom Distances (Å)
  Cl1 C2 C3 C4 C5 C6 C7 H8 H9 H10 H11 H12
Cl11.84712.80182.80184.11234.11234.63282.91312.91314.96334.96335.7216
C21.84711.39501.39502.41072.41072.78572.15632.15633.39753.39753.8745
C32.80181.39502.44191.40642.81452.43871.08743.42032.16153.90343.4248
C42.80181.39502.44192.81451.40642.43873.42031.08743.90342.16153.4248
C54.11232.41071.40642.81452.43391.40632.17763.90171.08893.42282.1674
C64.11232.41072.81451.40642.43391.40633.90172.17763.42281.08892.1674
C74.63282.78572.43872.43871.40631.40633.43063.43062.16952.16951.0888
H82.91312.15631.08743.42032.17763.90173.43064.30642.50504.99064.3325
H92.91312.15633.42031.08743.90172.17763.43064.30644.99062.50504.3325
H104.96333.39752.16153.90341.08893.42282.16952.50504.99064.32632.5006
H114.96333.39753.90342.16153.42281.08892.16954.99062.50504.32632.5006
H125.72163.87453.42483.42482.16742.16741.08884.33254.33252.50062.5006

picture of chlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 C2 C3 118.923 Cl1 C2 C4 118.923
C2 C3 C5 118.760 C2 C3 H8 120.096
C2 C4 C6 118.760 C2 C4 H9 120.096
C3 C2 C4 122.154 C3 C5 C7 120.235
C3 C5 H10 119.502 C4 C6 C7 120.235
C4 C6 H11 119.502 C5 C3 H8 121.144
C5 C7 C6 119.855 C5 C7 H12 120.072
C6 C4 H9 121.144 C6 C7 H12 120.072
C7 C5 H10 120.263 C7 C6 H11 120.263
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability