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All results from a given calculation for C6H5Cl (chlorobenzene)

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-686.701356
Energy at 298.15K-686.706606
HF Energy-686.130266
Nuclear repulsion energy310.031597
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 MP2/3-21G
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 3235 3088 3.50      
2 A1 3220 3073 7.50      
3 A1 3197 3051 0.03      
4 A1 1585 1513 25.03      
5 A1 1531 1461 34.88      
6 A1 1247 1191 0.20      
7 A1 1108 1057 35.15      
8 A1 1062 1013 15.41      
9 A1 1017 971 0.79      
10 A1 711 678 20.76      
11 A1 398 380 4.98      
12 A2 942 900 0.00      
13 A2 846 808 0.00      
14 A2 423 404 0.00      
15 B1 934 892 0.04      
16 B1 903 862 4.93      
17 B1 753 718 85.38      
18 B1 683 652 14.30      
19 B1 479 457 10.22      
20 B1 190 181 0.10      
21 B2 3231 3084 3.32      
22 B2 3206 3060 6.24      
23 B2 1595 1522 4.55      
24 B2 1496 1428 7.31      
25 B2 1388 1325 0.66      
26 B2 1322 1261 0.45      
27 B2 1240 1183 0.12      
28 B2 1100 1050 2.50      
29 B2 653 623 0.27      
30 B2 275 263 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 19983.1 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 19073.8 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 MP2/3-21G
ABC
0.18699 0.04974 0.03929

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 2.326
C2 0.000 0.000 0.478
C3 0.000 1.222 -0.197
C4 0.000 -1.222 -0.197
C5 0.000 1.217 -1.604
C6 0.000 -1.217 -1.604
C7 0.000 0.000 -2.309
H8 0.000 2.152 0.362
H9 0.000 -2.152 0.362
H10 0.000 2.162 -2.141
H11 0.000 -2.162 -2.141
H12 0.000 0.000 -3.395

Atom - Atom Distances (Å)
  Cl1 C2 C3 C4 C5 C6 C7 H8 H9 H10 H11 H12
Cl11.84802.80302.80304.11384.11384.63512.91402.91404.96244.96245.7213
C21.84801.39581.39582.41142.41142.78712.15552.15553.39573.39573.8733
C32.80301.39582.44391.40702.81592.44041.08503.42022.15943.90233.4241
C42.80301.39582.44392.81591.40702.44043.42021.08503.90232.15943.4241
C54.11382.41141.40702.81592.43451.40692.17633.90081.08643.42132.1661
C64.11382.41142.81591.40702.43451.40693.90082.17633.42131.08642.1661
C74.63512.78712.44042.44041.40691.40693.43013.43012.16812.16811.0862
H82.91402.15551.08503.42022.17633.90083.43014.30482.50254.98724.3298
H92.91402.15553.42021.08503.90082.17633.43014.30484.98722.50254.3298
H104.96243.39572.15943.90231.08643.42132.16812.50254.98724.32312.4991
H114.96243.39573.90232.15943.42131.08642.16814.98722.50254.32312.4991
H125.72133.87333.42413.42412.16612.16611.08624.32984.32982.49912.4991

picture of chlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 C2 C3 118.902 Cl1 C2 C4 118.902
C2 C3 C5 118.711 C2 C3 H8 120.134
C2 C4 C6 118.711 C2 C4 H9 120.134
C3 C2 C4 122.195 C3 C5 C7 120.287
C3 C5 H10 119.450 C4 C6 C7 120.287
C4 C6 H11 119.450 C5 C3 H8 121.155
C5 C7 C6 119.809 C5 C7 H12 120.096
C6 C4 H9 121.155 C6 C7 H12 120.096
C7 C5 H10 120.263 C7 C6 H11 120.263
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl 0.070     -0.136
2 C -0.237     -0.009
3 C -0.174     -0.046
4 C -0.174     -0.046
5 C -0.186     -0.189
6 C -0.186     -0.189
7 C -0.201     -0.082
8 H 0.229     0.131
9 H 0.229     0.131
10 H 0.211     0.152
11 H 0.211     0.152
12 H 0.208     0.130


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.840 2.840
CHELPG        
AIM        
ESP 0.000 0.000 -2.439 2.439


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 261.656
(<r2>)1/2 16.176