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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-64.613669
Energy at 298.15K-64.618183
HF Energy-64.613669
Nuclear repulsion energy162.117978
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 3426 3076 0.00      
2 Ag 1783 1601 0.00      
3 Ag 1278 1147 0.00      
4 Ag 1198 1075 0.00      
5 Ag 802 721 0.00      
6 Ag 348 312 0.00      
7 Au 1107 994 0.00      
8 Au 447 401 0.00      
9 B1g 953 856 0.00      
10 B1u 3405 3058 4.94      
11 B1u 1635 1468 122.16      
12 B1u 1200 1078 107.20      
13 B1u 1080 970 76.91      
14 B1u 586 526 34.87      
15 B2g 1079 969 0.00      
16 B2g 728 653 0.00      
17 B2g 322 290 0.00      
18 B2u 3425 3076 11.86      
19 B2u 1531 1375 6.35      
20 B2u 1284 1153 2.47      
21 B2u 1183 1063 1.75      
22 B2u 232 209 1.28      
23 B3g 3407 3060 0.00      
24 B3g 1772 1591 0.00      
25 B3g 1414 1269 0.00      
26 B3g 668 600 0.00      
27 B3g 373 335 0.00      
28 B3u 953 856 69.63      
29 B3u 530 476 27.62      
30 B3u 112 101 0.61      

Unscaled Zero Point Vibrational Energy (zpe) 19130.0 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 17178.7 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
0.18648 0.02201 0.01968

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 1.390
C2 0.000 0.000 -1.390
C3 0.000 1.222 0.702
C4 0.000 -1.222 0.702
C5 0.000 -1.222 -0.702
C6 0.000 1.222 -0.702
Cl7 0.000 0.000 3.140
Cl8 0.000 0.000 -3.140
H9 0.000 2.152 1.246
H10 0.000 -2.152 1.246
H11 0.000 -2.152 -1.246
H12 0.000 2.152 -1.246

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.77921.40261.40262.42252.42251.75084.53002.15712.15713.40303.4030
C22.77922.42252.42251.40261.40264.53001.75083.40303.40302.15712.1571
C31.40262.42252.44482.81921.40382.72784.03211.07753.41843.89672.1587
C41.40262.42252.44481.40382.81922.72784.03213.41841.07752.15873.8967
C52.42251.40262.81921.40382.44484.03212.72783.89672.15871.07753.4184
C62.42251.40261.40382.81922.44484.03212.72782.15873.89673.41841.0775
Cl71.75084.53002.72782.72784.03214.03216.28082.86722.86724.88624.8862
Cl84.53001.75084.03214.03212.72782.72786.28084.88624.88622.86722.8672
H92.15713.40301.07753.41843.89672.15872.86724.88624.30474.97422.4924
H102.15713.40303.41841.07752.15873.89672.86724.88624.30472.49244.9742
H113.40302.15713.89672.15871.07753.41844.88622.86724.97422.49244.3047
H123.40302.15712.15873.89673.41841.07754.88622.86722.49244.97424.3047

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 119.362 C1 C3 H9 120.299
C1 C4 C5 119.362 C1 C4 H10 120.299
C2 C5 C4 119.362 C2 C5 H11 120.299
C2 C6 C3 119.362 C2 C6 H12 120.299
C3 C1 C4 121.276 C3 C1 Cl7 119.362
C3 C6 H12 120.339 C4 C1 Cl7 119.362
C4 C5 H11 120.339 C5 C2 C6 121.276
C5 C2 Cl8 119.362 C5 C4 H10 120.339
C6 C2 Cl8 119.362 C6 C3 H9 120.339
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 -0.237      
2 C -0.237      
3 C -0.149      
4 C -0.149      
5 C -0.149      
6 C -0.149      
7 Cl -0.091      
8 Cl -0.091      
9 H 0.313      
10 H 0.313      
11 H 0.313      
12 H 0.313      


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 -62.267 0.000 0.000
y 0.000 -50.907 0.000
z 0.000 0.000 -66.508
Traceless
 xyz
x -3.559 0.000 0.000
y 0.000 13.480 0.000
z 0.000 0.000 -9.921
Polar
3z2-r2-19.842
x2-y2-11.360
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.014 0.000 0.000
y 0.000 11.410 0.000
z 0.000 0.000 18.407


<r2> (average value of r2) Å2
<r2> 247.461
(<r2>)1/2 15.731