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: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-1151.461357
Energy at 298.15K-1151.465542
HF Energy-1151.461357
Nuclear repulsion energy448.611589
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 B3LYP/6-31G(2df,p)
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 3220 3108 0.00      
2 Ag 1613 1557 0.00      
3 Ag 1197 1155 0.00      
4 Ag 1108 1069 0.00      
5 Ag 753 727 0.00      
6 Ag 329 318 0.00      
7 Au 952 919 0.00      
8 Au 420 405 0.00      
9 B1g 838 809 0.00      
10 B1u 3205 3093 1.43      
11 B1u 1504 1452 100.92      
12 B1u 1103 1064 99.98      
13 B1u 1021 986 57.95      
14 B1u 545 526 35.76      
15 B2g 965 931 0.00      
16 B2g 715 690 0.00      
17 B2g 299 288 0.00      
18 B2u 3219 3106 1.53      
19 B2u 1419 1369 6.77      
20 B2u 1318 1272 0.05      
21 B2u 1124 1085 4.99      
22 B2u 220 213 1.18      
23 B3g 3206 3094 0.00      
24 B3g 1614 1557 0.00      
25 B3g 1313 1267 0.00      
26 B3g 637 614 0.00      
27 B3g 354 342 0.00      
28 B3u 843 814 43.40      
29 B3u 502 484 10.17      
30 B3u 103 100 0.77      

Unscaled Zero Point Vibrational Energy (zpe) 17829.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 17205.4 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 B3LYP/6-31G(2df,p)
ABC
0.18932 0.02219 0.01986

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.380
C2 0.000 0.000 -1.380
C3 0.000 1.212 0.696
C4 0.000 -1.212 0.696
C5 0.000 -1.212 -0.696
C6 0.000 1.212 -0.696
Cl7 0.000 0.000 3.129
Cl8 0.000 0.000 -3.129
H9 0.000 2.145 1.245
H10 0.000 -2.145 1.245
H11 0.000 -2.145 -1.245
H12 0.000 2.145 -1.245

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.75911.39141.39142.40332.40331.74934.50842.14972.14973.38963.3896
C22.75912.40332.40331.39141.39144.50841.74933.38963.38962.14972.1497
C31.39142.40332.42362.79481.39172.71814.01211.08303.40183.87772.1535
C41.39142.40332.42361.39172.79482.71814.01213.40181.08302.15353.8777
C52.40331.39142.79481.39172.42364.01212.71813.87772.15351.08303.4018
C62.40331.39141.39172.79482.42364.01212.71812.15353.87773.40181.0830
Cl71.74934.50842.71812.71814.01214.01216.25772.85532.85534.87154.8715
Cl84.50841.74934.01214.01212.71812.71816.25774.87154.87152.85532.8553
H92.14973.38961.08303.40183.87772.15352.85534.87154.29094.96072.4894
H102.14973.38963.40181.08302.15353.87772.85534.87154.29092.48944.9607
H113.38962.14973.87772.15351.08303.40184.87152.85534.96072.48944.2909
H123.38962.14972.15353.87773.40181.08304.87152.85532.48944.96074.2909

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 119.432 C1 C3 H9 120.117
C1 C4 C5 119.432 C1 C4 H10 120.117
C2 C5 C4 119.432 C2 C5 H11 120.117
C2 C6 C3 119.432 C2 C6 H12 120.117
C3 C1 C4 121.137 C3 C1 Cl7 119.432
C3 C6 H12 120.452 C4 C1 Cl7 119.432
C4 C5 H11 120.452 C5 C2 C6 121.137
C5 C2 Cl8 119.432 C5 C4 H10 120.452
C6 C2 Cl8 119.432 C6 C3 H9 120.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.192      
2 C 0.192      
3 C -0.142      
4 C -0.142      
5 C -0.142      
6 C -0.142      
7 Cl -0.168      
8 Cl -0.168      
9 H 0.130      
10 H 0.130      
11 H 0.130      
12 H 0.130      


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 -61.222 0.000 0.000
y 0.000 -52.427 0.000
z 0.000 0.000 -65.553
Traceless
 xyz
x -2.232 0.000 0.000
y 0.000 10.961 0.000
z 0.000 0.000 -8.729
Polar
3z2-r2-17.458
x2-y2-8.795
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.885 0.000 0.000
y 0.000 12.195 0.000
z 0.000 0.000 19.718


<r2> (average value of r2) Å2
<r2> 464.472
(<r2>)1/2 21.552