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 (1,3-dichlorobenzene)

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-64.495508
Energy at 298.15K-64.500109
HF Energy-64.495508
Nuclear repulsion energy161.939106
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/CEP-121G
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 3396 3099 0.54      
2 A1 3389 3092 8.01      
3 A1 3353 3059 7.00      
4 A1 1747 1594 27.53      
5 A1 1549 1414 19.12      
6 A1 1214 1108 13.69      
7 A1 1160 1058 30.21      
8 A1 1079 985 4.95      
9 A1 716 654 2.38      
10 A1 410 375 4.52      
11 A1 201 184 1.07      
12 A2 1046 954 0.00      
13 A2 593 541 0.00      
14 A2 226 206 0.00      
15 B1 1118 1020 0.01      
16 B1 994 907 9.23      
17 B1 888 810 85.25      
18 B1 713 651 14.82      
19 B1 489 446 7.27      
20 B1 183 167 0.05      
21 B2 3381 3085 2.34      
22 B2 1748 1595 84.58      
23 B2 1609 1468 68.12      
24 B2 1431 1306 2.86      
25 B2 1316 1201 0.15      
26 B2 1254 1145 0.00      
27 B2 1181 1077 23.68      
28 B2 815 743 96.50      
29 B2 453 413 6.44      
30 B2 379 346 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 19015.2 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 17351.3 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/CEP-121G
ABC
0.09215 0.02771 0.02130

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.096
C2 0.000 1.217 1.404
C3 0.000 -1.217 1.404
C4 0.000 1.192 0.010
C5 0.000 -1.192 0.010
C6 0.000 0.000 -0.714
Cl7 0.000 2.751 -0.897
Cl8 0.000 -2.751 -0.897
H9 0.000 0.000 3.170
H10 0.000 2.151 1.930
H11 0.000 -2.151 1.930
H12 0.000 0.000 -1.785

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40061.40062.40332.40332.81054.06564.06561.07382.15782.15783.8811
C21.40062.43491.39432.78402.44292.76514.58742.14521.07193.40963.4131
C31.40062.43492.78401.39432.44294.58742.76512.14523.40961.07193.4131
C42.40331.39432.78402.38481.39491.80334.04653.37792.14643.85592.1545
C52.40332.78401.39432.38481.39494.04651.80333.37793.85592.14642.1545
C62.81052.44292.44291.39491.39492.75732.75733.88423.40873.40871.0706
Cl74.06562.76514.58741.80334.04652.75735.50244.91022.88995.65922.8909
Cl84.06564.58742.76514.04651.80332.75735.50244.91025.65922.88992.8909
H91.07382.14522.14523.37793.37793.88424.91024.91022.48322.48324.9549
H102.15781.07193.40962.14643.85593.40872.88995.65922.48324.30274.2927
H112.15783.40961.07193.85592.14643.40875.65922.88992.48324.30274.2927
H123.88113.41313.41312.15452.15451.07062.89092.89094.95494.29274.2927

picture of 1,3-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 118.604 C1 C2 H10 120.970
C1 C3 C5 118.604 C1 C3 H11 120.970
C2 C1 C3 120.734 C2 C1 H9 119.633
C2 C4 C6 122.288 C2 C4 Cl7 119.155
C3 C1 H9 119.633 C3 C5 C6 122.288
C3 C5 Cl8 119.155 C4 C2 H10 120.426
C4 C6 C5 117.482 C4 C6 H12 121.259
C5 C3 H11 120.426 C5 C6 H12 121.259
C6 C4 Cl7 118.557 C6 C5 Cl8 118.557
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.150      
2 C -0.120      
3 C -0.120      
4 C -0.279      
5 C -0.279      
6 C -0.055      
7 Cl 0.042      
8 Cl 0.042      
9 H 0.195      
10 H 0.230      
11 H 0.230      
12 H 0.265      


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 2.548 2.548
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -63.055 0.000 0.000
y 0.000 -66.598 0.000
z 0.000 0.000 -52.729
Traceless
 xyz
x -3.391 0.000 0.000
y 0.000 -8.706 0.000
z 0.000 0.000 12.097
Polar
3z2-r224.194
x2-y23.543
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.992 0.000 0.000
y 0.000 16.695 0.000
z 0.000 0.000 12.942


<r2> (average value of r2) Å2
<r2> 243.760
(<r2>)1/2 15.613