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 C6H4Cl2 (1,2-dichlorobenzene)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-1148.496894
Energy at 298.15K-1148.501555
HF Energy-1148.496894
Nuclear repulsion energy470.951310
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 HF/6-31G*
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 3408 3062 7.18      
2 A1 3390 3046 12.25      
3 A1 1770 1590 3.37      
4 A1 1639 1472 68.18      
5 A1 1319 1185 0.86      
6 A1 1254 1127 39.88      
7 A1 1199 1077 1.74      
8 A1 1138 1023 7.08      
9 A1 725 651 17.49      
10 A1 518 466 7.83      
11 A1 220 197 0.00      
12 A2 1122 1008 0.00      
13 A2 984 884 0.00      
14 A2 790 710 0.00      
15 A2 573 515 0.00      
16 A2 152 137 0.00      
17 B1 1083 973 2.50      
18 B1 855 768 68.97      
19 B1 496 445 4.96      
20 B1 260 234 0.69      
21 B2 3404 3059 7.43      
22 B2 3375 3032 2.03      
23 B2 1787 1605 6.19      
24 B2 1599 1437 23.41      
25 B2 1396 1255 4.52      
26 B2 1247 1120 4.65      
27 B2 1135 1020 40.21      
28 B2 809 727 19.36      
29 B2 464 417 0.78      
30 B2 366 329 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 19237.9 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 17285.3 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 HF/6-31G*
ABC
0.06368 0.04816 0.02742

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.693 -0.029
C2 0.000 -0.693 -0.029
C3 0.000 1.382 1.175
C4 0.000 -1.382 1.175
C5 0.000 0.693 2.372
C6 0.000 -0.693 2.372
Cl7 0.000 1.607 -1.504
Cl8 0.000 -1.607 -1.504
H9 0.000 2.455 1.160
H10 0.000 -2.455 1.160
H11 0.000 1.237 3.298
H12 0.000 -1.237 3.298

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.38681.38682.39932.40092.77231.73482.73242.12553.36573.37143.8467
C21.38682.39931.38682.77232.40092.73241.73483.36572.12553.84673.3714
C31.38682.39932.76431.38162.39552.68794.01351.07323.83742.12873.3719
C42.39931.38682.76432.39551.38164.01352.68793.83741.07323.37192.1287
C52.40092.77231.38162.39551.38553.98204.50662.13903.37321.07442.1405
C62.77232.40092.39551.38161.38554.50663.98203.37322.13902.14051.0744
Cl71.73482.73242.68794.01353.98204.50663.21372.79574.85764.81645.5810
Cl82.73241.73484.01352.68794.50663.98203.21374.85762.79575.58104.8164
H92.12553.36571.07323.83742.13903.37322.79574.85764.91052.46104.2667
H103.36572.12553.83741.07323.37322.13904.85762.79574.91054.26672.4610
H113.37143.84672.12873.37191.07442.14054.81645.58102.46104.26672.4738
H123.84673.37143.37192.12872.14051.07445.58104.81644.26672.46102.4738

picture of 1,2-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 119.778 C1 C2 Cl8 121.773
C1 C3 C5 120.288 C1 C3 H9 118.998
C2 C1 C3 119.778 C2 C1 Cl7 121.773
C2 C4 C6 120.288 C2 C4 H10 118.998
C3 C1 Cl7 118.449 C3 C5 C6 119.934
C3 C5 H11 119.636 C4 C2 Cl8 118.449
C4 C6 C5 119.934 C4 C6 H12 119.636
C5 C3 H9 120.714 C5 C6 H12 120.429
C6 C4 H10 120.714 C6 C5 H11 120.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.125      
2 C -0.125      
3 C -0.174      
4 C -0.174      
5 C -0.194      
6 C -0.194      
7 Cl 0.037      
8 Cl 0.037      
9 H 0.237      
10 H 0.237      
11 H 0.220      
12 H 0.220      


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 3.163 3.163
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -63.127 0.000 0.000
y 0.000 -56.213 0.000
z 0.000 0.000 -54.854
Traceless
 xyz
x -7.593 0.000 0.000
y 0.000 2.778 0.000
z 0.000 0.000 4.815
Polar
3z2-r29.631
x2-y2-6.914
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.437 0.000 0.000
y 0.000 12.833 0.000
z 0.000 0.000 15.027


<r2> (average value of r2) Å2
<r2> 359.037
(<r2>)1/2 18.948