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

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-1149.608083
Energy at 298.15K-1149.612208
HF Energy-1148.501041
Nuclear repulsion energy449.248270
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 MP3=FULL/6-31G*
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 3276 3074 0.00      
2 Ag 1698 1593 0.00      
3 Ag 1239 1163 0.00      
4 Ag 1158 1087 0.00      
5 Ag 783 734 0.00      
6 Ag 339 318 0.00      
7 Au 929 871 0.00      
8 Au 416 391 0.00      
9 B1g 837 786 0.00      
10 B1u 3261 3060 1.33      
11 B1u 1567 1470 104.93      
12 B1u 1157 1086 81.85      
13 B1u 1046 981 53.05      
14 B1u 570 535 24.55      
15 B2g 892 837 0.00      
16 B2g 567 532 0.00      
17 B2g 303 284 0.00      
18 B2u 3275 3073 1.75      
19 B2u 1472 1381 7.19      
20 B2u 1280 1201 0.15      
21 B2u 1161 1089 4.06      
22 B2u 227 213 1.08      
23 B3g 3262 3061 0.00      
24 B3g 1678 1575 0.00      
25 B3g 1351 1268 0.00      
26 B3g 653 612 0.00      
27 B3g 365 342 0.00      
28 B3u 818 768 64.19      
29 B3u 490 460 13.30      
30 B3u 105 98 0.65      

Unscaled Zero Point Vibrational Energy (zpe) 18086.3 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 16970.3 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 MP3=FULL/6-31G*
ABC
0.18967 0.02226 0.01992

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.382
C2 0.000 0.000 -1.382
C3 0.000 1.210 0.696
C4 0.000 -1.210 0.696
C5 0.000 -1.210 -0.696
C6 0.000 1.210 -0.696
Cl7 0.000 0.000 3.123
Cl8 0.000 0.000 -3.123
H9 0.000 2.146 1.244
H10 0.000 -2.146 1.244
H11 0.000 -2.146 -1.244
H12 0.000 2.146 -1.244

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.76421.39131.39132.40482.40481.74074.50492.15042.15043.39163.3916
C22.76422.40482.40481.39131.39134.50491.74073.39163.39162.15042.1504
C31.39132.40482.42072.79231.39182.71204.00591.08453.40083.87672.1540
C41.39132.40482.42071.39182.79232.71204.00593.40081.08452.15403.8767
C52.40481.39132.79231.39182.42074.00592.71203.87672.15401.08453.4008
C62.40481.39131.39182.79232.42074.00592.71202.15403.87673.40081.0845
Cl71.74074.50492.71202.71204.00594.00596.24562.85202.85204.86584.8658
Cl84.50491.74074.00594.00592.71202.71206.24564.86584.86582.85202.8520
H92.15043.39161.08453.40083.87672.15402.85204.86584.29194.96122.4885
H102.15043.39163.40081.08452.15403.87672.85204.86584.29192.48854.9612
H113.39162.15043.87672.15401.08453.40084.86582.85204.96122.48854.2919
H123.39162.15042.15403.87673.40081.08454.86582.85202.48854.96124.2919

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 119.550 C1 C3 H9 120.076
C1 C4 C5 119.550 C1 C4 H10 120.076
C2 C5 C4 119.550 C2 C5 H11 120.076
C2 C6 C3 119.550 C2 C6 H12 120.076
C3 C1 C4 120.900 C3 C1 Cl7 119.550
C3 C6 H12 120.374 C4 C1 Cl7 119.550
C4 C5 H11 120.374 C5 C2 C6 120.900
C5 C2 Cl8 119.550 C5 C4 H10 120.374
C6 C2 Cl8 119.550 C6 C3 H9 120.374
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability