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 (1,2-dichlorobenzene)

using model chemistry: PBEPBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/TZVP
 hartrees
Energy at 0K-1150.861344
Energy at 298.15K-1150.865302
HF Energy-1150.861344
Nuclear repulsion energy466.800567
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 PBEPBE/TZVP
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 3144 3109 2.70      
2 A1 3129 3094 5.53      
3 A1 1567 1549 4.28      
4 A1 1445 1428 66.33      
5 A1 1324 1309 1.43      
6 A1 1155 1142 0.99      
7 A1 1113 1100 52.98      
8 A1 1035 1023 11.34      
9 A1 653 646 16.39      
10 A1 468 463 8.21      
11 A1 195 193 0.03      
12 A2 902 892 0.00      
13 A2 815 806 0.00      
14 A2 601 595 0.00      
15 A2 487 482 0.00      
16 A2 129 128 0.00      
17 B1 889 879 0.85      
18 B1 730 722 62.85      
19 B1 424 420 6.18      
20 B1 225 222 1.63      
21 B2 3139 3104 1.96      
22 B2 3117 3082 1.14      
23 B2 1572 1554 9.30      
24 B2 1420 1404 18.44      
25 B2 1238 1224 3.01      
26 B2 1122 1109 0.64      
27 B2 1012 1000 39.40      
28 B2 729 721 21.48      
29 B2 419 414 0.70      
30 B2 329 326 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 17262.4 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 17069.0 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 PBEPBE/TZVP
ABC
0.06305 0.04713 0.02697

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.702 -0.026
C2 0.000 -0.702 -0.026
C3 0.000 1.396 1.188
C4 0.000 -1.396 1.188
C5 0.000 0.699 2.396
C6 0.000 -0.699 2.396
Cl7 0.000 1.611 -1.521
Cl8 0.000 -1.611 -1.521
H9 0.000 2.486 1.170
H10 0.000 -2.486 1.170
H11 0.000 1.252 3.336
H12 0.000 -1.252 3.336

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40371.39832.42382.42152.79741.74992.75392.14813.40513.40643.8883
C21.40372.42381.39832.79742.42152.75391.74993.40512.14813.88833.4064
C31.39832.42382.79241.39472.41812.71774.04731.09023.88252.15273.4099
C42.42381.39832.79242.41811.39474.04732.71773.88251.09023.40992.1527
C52.42152.79741.39472.41811.39734.02174.54702.16743.41261.09102.1656
C62.79742.42152.41811.39471.39734.54704.02173.41262.16742.16561.0910
Cl71.74992.75392.71774.04734.02174.54703.22132.83024.90194.87035.6380
Cl82.75391.74994.04732.71774.54704.02173.22134.90192.83025.63804.8703
H92.14813.40511.09023.88252.16743.41262.83024.90194.97262.49264.3205
H103.40512.14813.88251.09023.41262.16744.90192.83024.97264.32052.4926
H113.40643.88832.15273.40991.09102.16564.87035.63802.49264.32052.5045
H123.88833.40643.40992.15272.16561.09105.63804.87034.32052.49262.5045

picture of 1,2-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 119.772 C1 C2 Cl8 121.288
C1 C3 C5 120.221 C1 C3 H9 118.836
C2 C1 C3 119.772 C2 C1 Cl7 121.288
C2 C4 C6 120.221 C2 C4 H10 118.836
C3 C1 Cl7 118.940 C3 C5 C6 120.007
C3 C5 H11 119.502 C4 C2 Cl8 118.940
C4 C6 C5 120.007 C4 C6 H12 119.502
C5 C3 H9 120.943 C5 C6 H12 120.491
C6 C4 H10 120.943 C6 C5 H11 120.491
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.062      
2 C -0.062      
3 C -0.040      
4 C -0.040      
5 C -0.097      
6 C -0.097      
7 Cl -0.043      
8 Cl -0.043      
9 H 0.128      
10 H 0.128      
11 H 0.115      
12 H 0.115      


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 2.416 2.416
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -62.804 0.000 0.000
y 0.000 -56.067 0.000
z 0.000 0.000 -54.886
Traceless
 xyz
x -7.328 0.000 0.000
y 0.000 2.779 0.000
z 0.000 0.000 4.549
Polar
3z2-r29.099
x2-y2-6.738
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.971 0.000 0.000
y 0.000 15.018 0.000
z 0.000 0.000 17.816


<r2> (average value of r2) Å2
<r2> 364.529
(<r2>)1/2 19.093