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All results from a given calculation for C6H4Cl2 (1,2-dichlorobenzene)

using model chemistry: HF/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 HF/3-21G*
 hartrees
Energy at 0K-1143.056852
Energy at 298.15K-1143.061682
HF Energy-1143.056852
Nuclear repulsion energy471.405965
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/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 3403 3072 4.45      
2 A1 3384 3055 5.71      
3 A1 1737 1567 0.85      
4 A1 1641 1481 61.36      
5 A1 1344 1213 0.12      
6 A1 1249 1128 18.32      
7 A1 1234 1114 13.74      
8 A1 1133 1023 6.56      
9 A1 747 674 14.05      
10 A1 516 465 9.36      
11 A1 221 200 0.00      
12 A2 1193 1077 0.00      
13 A2 1042 940 0.00      
14 A2 859 775 0.00      
15 A2 602 543 0.00      
16 A2 158 142 0.00      
17 B1 1144 1033 4.29      
18 B1 888 802 95.71      
19 B1 516 466 9.50      
20 B1 269 243 1.74      
21 B2 3397 3066 1.76      
22 B2 3370 3042 1.39      
23 B2 1755 1584 3.41      
24 B2 1609 1452 22.50      
25 B2 1422 1284 6.02      
26 B2 1252 1130 5.44      
27 B2 1176 1062 30.77      
28 B2 822 742 19.92      
29 B2 471 425 0.87      
30 B2 372 336 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 19464.0 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 17568.2 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/3-21G*
ABC
0.06410 0.04809 0.02748

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.691 -0.024
C2 0.000 -0.691 -0.024
C3 0.000 1.380 1.176
C4 0.000 -1.380 1.176
C5 0.000 0.692 2.372
C6 0.000 -0.692 2.372
Cl7 0.000 1.601 -1.506
Cl8 0.000 -1.601 -1.506
H9 0.000 2.449 1.159
H10 0.000 -2.449 1.159
H11 0.000 1.234 3.296
H12 0.000 -1.234 3.296

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.38221.38322.39312.39652.76691.73872.72922.11943.35603.36423.8379
C21.38222.39311.38322.76692.39652.72921.73873.35602.11943.83793.3642
C31.38322.39312.75911.38032.39232.69064.00911.07003.82902.12533.3656
C42.39311.38322.75912.39231.38034.00912.69063.82901.07003.36562.1253
C52.39652.76691.38032.39231.38383.98344.50532.13573.36761.07092.1360
C62.76692.39652.39231.38031.38384.50533.98343.36762.13572.13601.0709
Cl71.73872.72922.69064.00913.98344.50533.20162.79684.84834.81585.5762
Cl82.72921.73874.00912.69064.50533.98343.20164.84832.79685.57624.8158
H92.11943.35601.07003.82902.13573.36762.79684.84834.89892.45834.2585
H103.35602.11943.82901.07003.36762.13574.84832.79684.89894.25852.4583
H113.36423.83792.12533.36561.07092.13604.81585.57622.45834.25852.4682
H123.83793.36423.36562.12532.13601.07095.57624.81584.25852.45832.4682

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 119.849 C1 C2 Cl8 121.546
C1 C3 C5 120.271 C1 C3 H9 118.962
C2 C1 C3 119.849 C2 C1 Cl7 121.546
C2 C4 C6 120.271 C2 C4 H10 118.962
C3 C1 Cl7 118.605 C3 C5 C6 119.880
C3 C5 H11 119.704 C4 C2 Cl8 118.605
C4 C6 C5 119.880 C4 C6 H12 119.704
C5 C3 H9 120.767 C5 C6 H12 120.417
C6 C4 H10 120.767 C6 C5 H11 120.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.188      
2 C -0.188      
3 C -0.198      
4 C -0.198      
5 C -0.233      
6 C -0.233      
7 Cl 0.081      
8 Cl 0.081      
9 H 0.279      
10 H 0.279      
11 H 0.260      
12 H 0.260      


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 3.202 3.202
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -64.771 0.000 0.000
y 0.000 -56.358 0.000
z 0.000 0.000 -54.939
Traceless
 xyz
x -9.123 0.000 0.000
y 0.000 3.497 0.000
z 0.000 0.000 5.625
Polar
3z2-r211.251
x2-y2-8.413
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.449 0.000 0.000
y 0.000 12.235 0.000
z 0.000 0.000 14.486


<r2> (average value of r2) Å2
<r2> 358.788
(<r2>)1/2 18.942