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 (1,4-dichlorobenzene)

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-1151.415730
Energy at 298.15K-1151.419961
HF Energy-1151.415730
Nuclear repulsion energy449.398424
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 mPW1PW91/6-31+G**
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 3256 3099 0.00      
2 Ag 1656 1576 0.00      
3 Ag 1205 1147 0.00      
4 Ag 1131 1077 0.00      
5 Ag 768 731 0.00      
6 Ag 335 319 0.00      
7 Au 981 934 0.00      
8 Au 422 401 0.00      
9 B1g 833 793 0.00      
10 B1u 3242 3086 1.29      
11 B1u 1524 1451 118.35      
12 B1u 1124 1070 102.20      
13 B1u 1028 979 57.88      
14 B1u 561 534 35.06      
15 B2g 963 916 0.00      
16 B2g 714 680 0.00      
17 B2g 301 287 0.00      
18 B2u 3255 3098 0.94      
19 B2u 1442 1372 5.60      
20 B2u 1352 1287 0.13      
21 B2u 1134 1079 6.43      
22 B2u 225 214 0.85      
23 B3g 3243 3087 0.00      
24 B3g 1646 1567 0.00      
25 B3g 1319 1256 0.00      
26 B3g 639 608 0.00      
27 B3g 360 343 0.00      
28 B3u 838 798 63.19      
29 B3u 498 474 21.32      
30 B3u 103 98 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 18048.4 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 17178.5 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 mPW1PW91/6-31+G**
ABC
0.18965 0.02228 0.01994

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.382
C2 0.000 0.000 -1.382
C3 0.000 1.210 0.696
C4 0.000 -1.210 0.696
C5 0.000 -1.210 -0.696
C6 0.000 1.210 -0.696
Cl7 0.000 0.000 3.121
Cl8 0.000 0.000 -3.121
H9 0.000 2.146 1.242
H10 0.000 -2.146 1.242
H11 0.000 -2.146 -1.242
H12 0.000 2.146 -1.242

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.76421.39151.39152.40472.40471.73924.50342.15032.15033.39013.3901
C22.76422.40472.40471.39151.39154.50341.73923.39013.39012.15032.1503
C31.39152.40472.42092.79231.39152.71084.00441.08343.40053.87562.1520
C41.39152.40472.42091.39152.79232.71084.00443.40051.08342.15203.8756
C52.40471.39152.79231.39152.42094.00442.71083.87562.15201.08343.4005
C62.40471.39151.39152.79232.42094.00442.71082.15203.87563.40051.0834
Cl71.73924.50342.71082.71084.00444.00446.24272.85222.85224.86284.8628
Cl84.50341.73924.00444.00442.71082.71086.24274.86284.86282.85222.8522
H92.15033.39011.08343.40053.87562.15202.85224.86284.29164.95902.4848
H102.15033.39013.40051.08342.15203.87562.85224.86284.29162.48484.9590
H113.39012.15033.87562.15201.08343.40054.86282.85224.95902.48484.2916
H123.39012.15032.15203.87563.40051.08344.86282.85222.48484.95904.2916

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 119.556 C1 C3 H9 120.141
C1 C4 C5 119.556 C1 C4 H10 120.141
C2 C5 C4 119.556 C2 C5 H11 120.141
C2 C6 C3 119.556 C2 C6 H12 120.141
C3 C1 C4 120.889 C3 C1 Cl7 119.556
C3 C6 H12 120.304 C4 C1 Cl7 119.556
C4 C5 H11 120.304 C5 C2 C6 120.889
C5 C2 Cl8 119.556 C5 C4 H10 120.304
C6 C2 Cl8 119.556 C6 C3 H9 120.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.114      
2 C -0.114      
3 C -0.278      
4 C -0.278      
5 C -0.278      
6 C -0.278      
7 Cl 0.300      
8 Cl 0.300      
9 H 0.186      
10 H 0.186      
11 H 0.186      
12 H 0.186      


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 -62.894 0.000 0.000
y 0.000 -52.399 0.000
z 0.000 0.000 -65.837
Traceless
 xyz
x -3.776 0.000 0.000
y 0.000 11.967 0.000
z 0.000 0.000 -8.191
Polar
3z2-r2-16.381
x2-y2-10.495
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.380 0.000 0.000
y 0.000 12.858 0.000
z 0.000 0.000 19.889


<r2> (average value of r2) Å2
<r2> 463.259
(<r2>)1/2 21.523