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

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-64.480546
Energy at 298.15K-64.485105
HF Energy-64.480546
Nuclear repulsion energy160.742769
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-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 Ag 3444 3105 0.00      
2 Ag 1771 1596 0.00      
3 Ag 1305 1176 0.00      
4 Ag 1173 1057 0.00      
5 Ag 784 707 0.00      
6 Ag 340 306 0.00      
7 Au 1134 1022 0.00      
8 Au 461 416 0.00      
9 B1g 977 880 0.00      
10 B1u 3420 3083 3.03      
11 B1u 1637 1475 114.16      
12 B1u 1190 1072 88.43      
13 B1u 1094 986 117.88      
14 B1u 552 498 39.95      
15 B2g 1109 1000 0.00      
16 B2g 772 696 0.00      
17 B2g 325 293 0.00      
18 B2u 3442 3102 11.36      
19 B2u 1533 1382 8.75      
20 B2u 1336 1204 4.82      
21 B2u 1211 1092 2.03      
22 B2u 224 202 2.40      
23 B3g 3421 3084 0.00      
24 B3g 1770 1595 0.00      
25 B3g 1447 1304 0.00      
26 B3g 682 615 0.00      
27 B3g 367 331 0.00      
28 B3u 978 881 71.37      
29 B3u 553 498 46.07      
30 B3u 112 101 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 19281.3 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 17380.2 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/CEP-31G
ABC
0.18509 0.02139 0.01917

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.384
C2 0.000 0.000 -1.384
C3 0.000 1.228 0.704
C4 0.000 -1.228 0.704
C5 0.000 -1.228 -0.704
C6 0.000 1.228 -0.704
Cl7 0.000 0.000 3.191
Cl8 0.000 0.000 -3.191
H9 0.000 2.154 1.248
H10 0.000 -2.154 1.248
H11 0.000 -2.154 -1.248
H12 0.000 2.154 -1.248

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.76851.40371.40372.42272.42271.80644.57502.15832.15833.40143.4014
C22.76852.42272.42271.40371.40374.57501.80643.40143.40142.15832.1583
C31.40372.42272.45582.83101.40842.77324.08391.07413.42543.90502.1609
C41.40372.42272.45581.40842.83102.77324.08393.42541.07412.16093.9050
C52.42271.40372.83101.40842.45584.08392.77323.90502.16091.07413.4254
C62.42271.40371.40842.83102.45584.08392.77322.16093.90503.42541.0741
Cl71.80644.57502.77322.77324.08394.08396.38142.90052.90054.93394.9339
Cl84.57501.80644.08394.08392.77322.77326.38144.93394.93392.90052.9005
H92.15833.40141.07413.42543.90502.16092.90054.93394.30804.97912.4965
H102.15833.40143.42541.07412.16093.90502.90054.93394.30802.49654.9791
H113.40142.15833.90502.16091.07413.42544.93392.90054.97912.49654.3080
H123.40142.15832.16093.90503.42541.07414.93392.90052.49654.97914.3080

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 118.980 C1 C3 H9 120.588
C1 C4 C5 118.980 C1 C4 H10 120.588
C2 C5 C4 118.980 C2 C5 H11 120.588
C2 C6 C3 118.980 C2 C6 H12 120.588
C3 C1 C4 122.041 C3 C1 Cl7 118.980
C3 C6 H12 120.432 C4 C1 Cl7 118.980
C4 C5 H11 120.432 C5 C2 C6 122.041
C5 C2 Cl8 118.980 C5 C4 H10 120.432
C6 C2 Cl8 118.980 C6 C3 H9 120.432
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.524      
2 C -0.524      
3 C -0.046      
4 C -0.046      
5 C -0.046      
6 C -0.046      
7 Cl 0.029      
8 Cl 0.029      
9 H 0.294      
10 H 0.294      
11 H 0.294      
12 H 0.294      


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 -63.020 0.000 0.000
y 0.000 -50.901 0.000
z 0.000 0.000 -72.566
Traceless
 xyz
x -1.286 0.000 0.000
y 0.000 16.892 0.000
z 0.000 0.000 -15.605
Polar
3z2-r2-31.210
x2-y2-12.119
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.827 0.000 0.000
y 0.000 10.717 0.000
z 0.000 0.000 18.480


<r2> (average value of r2) Å2
<r2> 253.532
(<r2>)1/2 15.923