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: BLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at BLYP/cc-pVTZ
 hartrees
Energy at 0K-1151.463620
Energy at 298.15K-1151.467634
HF Energy-1151.463620
Nuclear repulsion energy445.374350
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 BLYP/cc-pVTZ
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 3135 3125 0.00      
2 Ag 1548 1543 0.00      
3 Ag 1169 1165 0.00      
4 Ag 1056 1053 0.00      
5 Ag 727 725 0.00      
6 Ag 316 315 0.00      
7 Au 942 939 0.00      
8 Au 410 409 0.00      
9 B1g 801 798 0.00      
10 B1u 3120 3111 1.88      
11 B1u 1462 1457 89.23      
12 B1u 1058 1055 103.10      
13 B1u 1003 1000 58.96      
14 B1u 514 512 41.83      
15 B2g 933 930 0.00      
16 B2g 692 690 0.00      
17 B2g 286 285 0.00      
18 B2u 3133 3124 3.32      
19 B2u 1378 1374 5.60      
20 B2u 1283 1279 0.11      
21 B2u 1097 1094 6.30      
22 B2u 212 212 0.87      
23 B3g 3121 3112 0.00      
24 B3g 1549 1545 0.00      
25 B3g 1289 1285 0.00      
26 B3g 624 623 0.00      
27 B3g 344 343 0.00      
28 B3u 813 811 48.08      
29 B3u 481 480 15.49      
30 B3u 98 98 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 17297.5 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 17245.6 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 BLYP/cc-pVTZ
ABC
0.18772 0.02181 0.01954

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.387
C2 0.000 0.000 -1.387
C3 0.000 1.217 0.699
C4 0.000 -1.217 0.699
C5 0.000 -1.217 -0.699
C6 0.000 1.217 -0.699
Cl7 0.000 0.000 3.157
Cl8 0.000 0.000 -3.157
H9 0.000 2.155 1.247
H10 0.000 -2.155 1.247
H11 0.000 -2.155 -1.247
H12 0.000 2.155 -1.247

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.77421.39781.39782.41552.41551.76984.54402.15932.15933.40353.4035
C22.77422.41552.41551.39781.39784.54401.76983.40353.40352.15932.1593
C31.39782.41552.43392.80721.39892.74234.04381.08623.41603.89342.1609
C41.39782.41552.43391.39892.80722.74234.04383.41601.08622.16093.8934
C52.41551.39782.80721.39892.43394.04382.74233.89342.16091.08623.4160
C62.41551.39781.39892.80722.43394.04382.74232.16093.89343.41601.0862
Cl71.76984.54402.74232.74234.04384.04386.31382.87922.87924.90314.9031
Cl84.54401.76984.04384.04382.74232.74236.31384.90314.90312.87922.8792
H92.15933.40351.08623.41603.89342.16092.87924.90314.30964.97962.4947
H102.15933.40353.41601.08622.16093.89342.87924.90314.30962.49474.9796
H113.40352.15933.89342.16091.08623.41604.90312.87924.97962.49474.3096
H123.40352.15932.16093.89343.41601.08624.90312.87922.49474.97964.3096

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 119.470 C1 C3 H9 120.236
C1 C4 C5 119.470 C1 C4 H10 120.236
C2 C5 C4 119.470 C2 C5 H11 120.236
C2 C6 C3 119.470 C2 C6 H12 120.236
C3 C1 C4 121.059 C3 C1 Cl7 119.470
C3 C6 H12 120.293 C4 C1 Cl7 119.470
C4 C5 H11 120.293 C5 C2 C6 121.059
C5 C2 Cl8 119.470 C5 C4 H10 120.293
C6 C2 Cl8 119.470 C6 C3 H9 120.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.072      
2 C 0.072      
3 C -0.086      
4 C -0.086      
5 C -0.086      
6 C -0.086      
7 Cl -0.117      
8 Cl -0.117      
9 H 0.109      
10 H 0.109      
11 H 0.109      
12 H 0.109      


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 -62.493 0.000 0.000
y 0.000 -53.623 0.000
z 0.000 0.000 -66.185
Traceless
 xyz
x -2.589 0.000 0.000
y 0.000 10.716 0.000
z 0.000 0.000 -8.126
Polar
3z2-r2-16.253
x2-y2-8.870
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.822 0.000 0.000
y 0.000 13.310 0.000
z 0.000 0.000 21.519


<r2> (average value of r2) Å2
<r2> 471.968
(<r2>)1/2 21.725