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

using model chemistry: CCD/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 CCD/6-31+G**
 hartrees
Energy at 0K-1149.607413
Energy at 298.15K 
HF Energy-1148.514226
Nuclear repulsion energy448.472683
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 CCD/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 3291 3101 0.00      
2 Ag 1688 1590 0.00      
3 Ag 1230 1159 0.00      
4 Ag 1149 1083 0.00      
5 Ag 778 733 0.00      
6 Ag 337 317 0.00      
7 Au 928 874 0.00      
8 Au 393 370 0.00      
9 B1g 826 778 0.00      
10 B1u 3275 3086 1.98      
11 B1u 1560 1470 90.67      
12 B1u 1156 1089 90.66      
13 B1u 1043 983 46.22      
14 B1u 567 534 22.25      
15 B2g 878 827 0.00      
16 B2g 280 264 0.00      
17 B2g 449i 424i 0.00      
18 B2u 3289 3099 3.55      
19 B2u 1462 1377 5.17      
20 B2u 1293 1218 0.23      
21 B2u 1152 1085 3.55      
22 B2u 223 210 0.86      
23 B3g 3276 3087 0.00      
24 B3g 1667 1571 0.00      
25 B3g 1349 1271 0.00      
26 B3g 647 610 0.00      
27 B3g 358 337 0.00      
28 B3u 797 751 69.15      
29 B3u 409 385 12.60      
30 B3u 98 92 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 17473.2 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 16465.0 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 CCD/6-31+G**
ABC
0.18926 0.02216 0.01984

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

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 1.212 0.698
C4 0.000 -1.212 0.698
C5 0.000 -1.212 -0.698
C6 0.000 1.212 -0.698
Cl7 0.000 0.000 3.129
Cl8 0.000 0.000 -3.129
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
C12.77441.39441.39442.41152.41151.74224.51662.15082.15083.39393.3939
C22.77442.41152.41151.39441.39444.51661.74223.39393.39392.15082.1508
C31.39442.41152.42402.79681.39522.71714.01441.08113.40183.87792.1529
C41.39442.41152.42401.39522.79682.71714.01443.40181.08112.15293.8779
C52.41151.39442.79681.39522.42404.01442.71713.87792.15291.08113.4018
C62.41151.39441.39522.79682.42404.01442.71712.15293.87793.40181.0811
Cl71.74224.51662.71712.71714.01444.01446.25892.85782.85784.86994.8699
Cl84.51661.74224.01444.01442.71712.71716.25894.86994.86992.85782.8578
H92.15083.39391.08113.40183.87792.15292.85784.86994.29184.95902.4843
H102.15083.39393.40181.08112.15293.87792.85784.86994.29182.48434.9590
H113.39392.15083.87792.15291.08113.40184.86992.85784.95902.48434.2918
H123.39392.15082.15293.87793.40181.08114.86992.85782.48434.95904.2918

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 119.639 C1 C3 H9 120.117
C1 C4 C5 119.639 C1 C4 H10 120.117
C2 C5 C4 119.639 C2 C5 H11 120.117
C2 C6 C3 119.639 C2 C6 H12 120.117
C3 C1 C4 120.722 C3 C1 Cl7 119.639
C3 C6 H12 120.244 C4 C1 Cl7 119.639
C4 C5 H11 120.244 C5 C2 C6 120.722
C5 C2 Cl8 119.639 C5 C4 H10 120.244
C6 C2 Cl8 119.639 C6 C3 H9 120.244
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability