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All results from a given calculation for C6H4Cl2 (1,4-dichlorobenzene)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-1145.568329
Energy at 298.15K-1145.572563
HF Energy-1145.568329
Nuclear repulsion energy443.651484
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 B3PW91/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3255 3129 0.00      
2 Ag 1612 1550 0.00      
3 Ag 1233 1185 0.00      
4 Ag 1116 1073 0.00      
5 Ag 753 724 0.00      
6 Ag 326 313 0.00      
7 Au 1019 980 0.00      
8 Au 436 419 0.00      
9 B1g 858 825 0.00      
10 B1u 3239 3113 0.13      
11 B1u 1532 1472 103.49      
12 B1u 1112 1069 98.21      
13 B1u 1060 1018 75.09      
14 B1u 519 499 42.25      
15 B2g 1017 978 0.00      
16 B2g 751 722 0.00      
17 B2g 304 292 0.00      
18 B2u 3252 3126 0.33      
19 B2u 1435 1379 8.85      
20 B2u 1339 1287 2.36      
21 B2u 1147 1102 5.38      
22 B2u 206 198 1.77      
23 B3g 3240 3114 0.00      
24 B3g 1631 1568 0.00      
25 B3g 1363 1310 0.00      
26 B3g 664 638 0.00      
27 B3g 337 324 0.00      
28 B3u 872 839 82.26      
29 B3u 507 487 32.98      
30 B3u 103 99 0.93      

Unscaled Zero Point Vibrational Energy (zpe) 18117.2 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 17414.3 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 B3PW91/3-21G
ABC
0.18857 0.02154 0.01933

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.367
C2 0.000 0.000 -1.367
C3 0.000 1.215 0.698
C4 0.000 -1.215 0.698
C5 0.000 -1.215 -0.698
C6 0.000 1.215 -0.698
Cl7 0.000 0.000 3.182
Cl8 0.000 0.000 -3.182
H9 0.000 2.145 1.252
H10 0.000 -2.145 1.252
H11 0.000 -2.145 -1.252
H12 0.000 2.145 -1.252

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.73421.38701.38702.39592.39591.81484.54892.14852.14853.38523.3852
C22.73422.39592.39591.38701.38704.54891.81483.38523.38522.14852.1485
C31.38702.39592.42982.80221.39602.76514.06561.08273.40553.88482.1602
C41.38702.39592.42981.39602.80222.76514.06563.40551.08272.16023.8848
C52.39591.38702.80221.39602.42984.06562.76513.88482.16021.08273.4055
C62.39591.38701.39602.80222.42984.06562.76512.16023.88483.40551.0827
Cl71.81484.54892.76512.76514.06564.06566.36372.88592.88594.92524.9252
Cl84.54891.81484.06564.06562.76512.76516.36374.92524.92522.88592.8859
H92.14853.38521.08273.40553.88482.16022.88594.92524.29074.96742.5030
H102.14853.38523.40551.08272.16023.88482.88594.92524.29072.50304.9674
H113.38522.14853.88482.16021.08273.40554.92522.88594.96742.50304.2907
H123.38522.14852.16023.88483.40551.08274.92522.88592.50304.96744.2907

picture of 1,4-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C6 118.844 C1 C3 H9 120.407
C1 C4 C5 118.844 C1 C4 H10 120.407
C2 C5 C4 118.844 C2 C5 H11 120.407
C2 C6 C3 118.844 C2 C6 H12 120.407
C3 C1 C4 122.311 C3 C1 Cl7 118.844
C3 C6 H12 120.749 C4 C1 Cl7 118.844
C4 C5 H11 120.749 C5 C2 C6 122.311
C5 C2 Cl8 118.844 C5 C4 H10 120.749
C6 C2 Cl8 118.844 C6 C3 H9 120.749
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.306      
2 C -0.306      
3 C -0.171      
4 C -0.171      
5 C -0.171      
6 C -0.171      
7 Cl 0.129      
8 Cl 0.129      
9 H 0.259      
10 H 0.259      
11 H 0.259      
12 H 0.259      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -63.897 0.000 0.000
y 0.000 -51.160 0.000
z 0.000 0.000 -68.749
Traceless
 xyz
x -3.942 0.000 0.000
y 0.000 15.163 0.000
z 0.000 0.000 -11.221
Polar
3z2-r2-22.442
x2-y2-12.737
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.046 0.000 0.000
y 0.000 10.386 0.000
z 0.000 0.000 18.169


<r2> (average value of r2) Å2
<r2> 476.705
(<r2>)1/2 21.834