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All results from a given calculation for C6H4Cl2 (1,4-dichlorobenzene)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-1145.974029
Energy at 298.15K-1145.978386
HF Energy-1145.974029
Nuclear repulsion energy449.902504
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 B1B95/3-21G
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 3271 3129 0.00      
2 Ag 1634 1564 0.00      
3 Ag 1241 1187 0.00      
4 Ag 1132 1083 0.00      
5 Ag 771 737 0.00      
6 Ag 339 325 0.00      
7 Au 1021 977 0.00      
8 Au 432 413 0.00      
9 B1g 865 827 0.00      
10 B1u 3254 3113 0.36      
11 B1u 1539 1472 102.05      
12 B1u 1133 1084 116.12      
13 B1u 1062 1016 29.14      
14 B1u 558 533 35.35      
15 B2g 1017 973 0.00      
16 B2g 755 722 0.00      
17 B2g 310 297 0.00      
18 B2u 3267 3126 0.01      
19 B2u 1447 1384 10.48      
20 B2u 1323 1266 0.22      
21 B2u 1154 1104 5.20      
22 B2u 226 216 0.95      
23 B3g 3255 3114 0.00      
24 B3g 1623 1553 0.00      
25 B3g 1368 1309 0.00      
26 B3g 664 635 0.00      
27 B3g 359 343 0.00      
28 B3u 874 836 77.13      
29 B3u 511 489 29.74      
30 B3u 106 102 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 18253.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 17463.3 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 B1B95/3-21G
ABC
0.19049 0.02231 0.01997

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.379
C2 0.000 0.000 -1.379
C3 0.000 1.208 0.695
C4 0.000 -1.208 0.695
C5 0.000 -1.208 -0.695
C6 0.000 1.208 -0.695
Cl7 0.000 0.000 3.120
Cl8 0.000 0.000 -3.120
H9 0.000 2.139 1.243
H10 0.000 -2.139 1.243
H11 0.000 -2.139 -1.243
H12 0.000 2.139 -1.243

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.75861.38861.38862.40022.40021.74034.49882.14312.14313.38403.3840
C22.75862.40022.40021.38861.38864.49881.74033.38403.38402.14312.1431
C31.38862.40022.41622.78721.38952.70914.00101.08033.39153.86742.1498
C41.38862.40022.41621.38952.78722.70914.00103.39151.08032.14983.8674
C52.40021.38862.78721.38952.41624.00102.70913.86742.14981.08033.3915
C62.40021.38861.38952.78722.41624.00102.70912.14983.86743.39151.0803
Cl71.74034.49882.70912.70914.00104.00106.23912.84522.84524.85884.8588
Cl84.49881.74034.00104.00102.70912.70916.23914.85884.85882.84522.8452
H92.14313.38401.08033.39153.86742.14982.84524.85884.27764.94772.4864
H102.14313.38403.39151.08032.14983.86742.84524.85884.27762.48644.9477
H113.38402.14313.86742.14981.08033.39154.85882.84524.94772.48644.2776
H123.38402.14312.14983.86743.39151.08034.85882.84522.48644.94774.2776

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 119.538 C1 C3 H9 119.952
C1 C4 C5 119.538 C1 C4 H10 119.952
C2 C5 C4 119.538 C2 C5 H11 119.952
C2 C6 C3 119.538 C2 C6 H12 119.952
C3 C1 C4 120.924 C3 C1 Cl7 119.538
C3 C6 H12 120.510 C4 C1 Cl7 119.538
C4 C5 H11 120.510 C5 C2 C6 120.924
C5 C2 Cl8 119.538 C5 C4 H10 120.510
C6 C2 Cl8 119.538 C6 C3 H9 120.510
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.204      
2 C -0.204      
3 C -0.182      
4 C -0.182      
5 C -0.182      
6 C -0.182      
7 Cl 0.066      
8 Cl 0.066      
9 H 0.251      
10 H 0.251      
11 H 0.251      
12 H 0.251      


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 -63.412 0.000 0.000
y 0.000 -51.550 0.000
z 0.000 0.000 -64.604
Traceless
 xyz
x -5.335 0.000 0.000
y 0.000 12.459 0.000
z 0.000 0.000 -7.123
Polar
3z2-r2-14.247
x2-y2-11.863
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.620 0.000 0.000
y 0.000 10.724 0.000
z 0.000 0.000 17.939


<r2> (average value of r2) Å2
<r2> 462.178
(<r2>)1/2 21.498