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All results from a given calculation for C6H5Cl (chlorobenzene)

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-686.810731
Energy at 298.15K-686.816267
Nuclear repulsion energy315.239855
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 3304 3087 3.14      
2 A1 3288 3072 9.43      
3 A1 3265 3051 0.00      
4 A1 1682 1571 18.97      
5 A1 1592 1488 41.12      
6 A1 1284 1200 0.05      
7 A1 1161 1084 39.25      
8 A1 1100 1028 9.09      
9 A1 1065 995 0.67      
10 A1 751 702 21.07      
11 A1 435 406 4.48      
12 A2 1029 962 0.00      
13 A2 904 845 0.00      
14 A2 441 412 0.00      
15 B1 1032 964 0.02      
16 B1 974 910 4.44      
17 B1 802 749 80.88      
18 B1 731 683 23.11      
19 B1 506 473 10.38      
20 B1 203 189 0.17      
21 B2 3297 3081 5.53      
22 B2 3275 3060 6.25      
23 B2 1677 1567 3.46      
24 B2 1553 1451 9.52      
25 B2 1435 1341 0.80      
26 B2 1305 1219 0.35      
27 B2 1215 1135 0.18      
28 B2 1145 1070 2.54      
29 B2 679 634 0.21      
30 B2 311 290 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 20718.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 19359.3 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 CISD/3-21G*
ABC
0.19026 0.05210 0.04090

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)
Cl1 0.000 0.000 2.260
C2 0.000 0.000 0.504
C3 0.000 1.211 -0.178
C4 0.000 -1.211 -0.178
C5 0.000 1.206 -1.572
C6 0.000 -1.206 -1.572
C7 0.000 0.000 -2.272
H8 0.000 2.139 0.373
H9 0.000 -2.139 0.373
H10 0.000 2.145 -2.107
H11 0.000 -2.145 -2.107
H12 0.000 0.000 -3.352

Atom - Atom Distances (Å)
  Cl1 C2 C3 C4 C5 C6 C7 H8 H9 H10 H11 H12
Cl11.75612.72242.72244.01774.01774.53212.85222.85224.86564.86565.6122
C21.75611.38991.38992.40122.40122.77592.14292.14293.37923.37923.8561
C32.72241.38992.42201.39422.79042.41881.07933.39492.14333.87073.3972
C42.72241.38992.42202.79041.39422.41883.39491.07933.87072.14333.3972
C54.01772.40121.39422.79042.41231.39442.15753.86961.08033.39332.1500
C64.01772.40122.79041.39422.41231.39443.86962.15753.39331.08032.1500
C74.53212.77592.41882.41881.39441.39443.40173.40172.15102.15101.0802
H82.85222.14291.07933.39492.15753.86963.40174.27772.48054.94994.2957
H92.85222.14293.39491.07933.86962.15753.40174.27774.94992.48054.2957
H104.86563.37922.14333.87071.08033.39332.15102.48054.94994.28942.4797
H114.86563.37923.87072.14333.39331.08032.15104.94992.48054.28942.4797
H125.61223.85613.39723.39722.15002.15001.08024.29574.29572.47972.4797

picture of chlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 C2 C3 119.390 Cl1 C2 C4 119.390
C2 C3 C5 119.192 C2 C3 H8 119.894
C2 C4 C6 119.192 C2 C4 H9 119.894
C3 C2 C4 121.220 C3 C5 C7 120.314
C3 C5 H10 119.490 C4 C6 C7 120.314
C4 C6 H11 119.490 C5 C3 H8 120.914
C5 C7 C6 119.767 C5 C7 H12 120.116
C6 C4 H9 120.914 C6 C7 H12 120.116
C7 C5 H10 120.195 C7 C6 H11 120.195
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability