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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31+G**
 hartrees
Energy at 0K-1149.623121
Energy at 298.15K 
HF Energy-1148.514205
Nuclear repulsion energy449.037133
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 MP2=FULL/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 3287 3088 0.00      
2 Ag 1654 1553 0.00      
3 Ag 1222 1148 0.00      
4 Ag 1138 1069 0.00      
5 Ag 772 725 0.00      
6 Ag 335 315 0.00      
7 Au 904 849 0.00      
8 Au 387 364 0.00      
9 B1g 810 761 0.00      
10 B1u 3273 3074 1.12      
11 B1u 1534 1441 97.44      
12 B1u 1144 1074 97.46      
13 B1u 1033 970 50.01      
14 B1u 567 533 23.76      
15 B2g 862 810 0.00      
16 B2g 273 256 0.00      
17 B2g 566i 532i 0.00      
18 B2u 3286 3086 1.62      
19 B2u 1480 1390 1.30      
20 B2u 1418 1332 3.45      
21 B2u 1143 1074 5.15      
22 B2u 223 210 0.69      
23 B3g 3274 3075 0.00      
24 B3g 1638 1539 0.00      
25 B3g 1334 1253 0.00      
26 B3g 641 602 0.00      
27 B3g 357 335 0.00      
28 B3u 777 730 73.53      
29 B3u 389 365 11.91      
30 B3u 96 90 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 17342.2 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 16287.8 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 MP2=FULL/6-31+G**
ABC
0.18925 0.02224 0.01990

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.388
C2 0.000 0.000 -1.388
C3 0.000 1.212 0.697
C4 0.000 -1.212 0.697
C5 0.000 -1.212 -0.697
C6 0.000 1.212 -0.697
Cl7 0.000 0.000 3.123
Cl8 0.000 0.000 -3.123
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
C12.77551.39491.39492.41172.41171.73554.51112.15082.15083.39423.3942
C22.77552.41172.41171.39491.39494.51111.73553.39423.39422.15082.1508
C31.39492.41172.42412.79661.39452.71204.00821.08123.40193.87772.1525
C41.39492.41172.42411.39452.79662.71204.00823.40191.08122.15253.8777
C52.41171.39492.79661.39452.42414.00822.71203.87772.15251.08123.4019
C62.41171.39491.39452.79662.42414.00822.71202.15253.87773.40191.0812
Cl71.73554.51112.71202.71204.00824.00826.24662.85382.85384.86434.8643
Cl84.51111.73554.00824.00822.71202.71206.24664.86434.86432.85382.8538
H92.15083.39421.08123.40193.87772.15252.85384.86434.29184.95892.4841
H102.15083.39423.40191.08122.15253.87772.85384.86434.29182.48414.9589
H113.39422.15083.87772.15251.08123.40194.86432.85384.95892.48414.2918
H123.39422.15082.15253.87773.40191.08124.86432.85382.48414.95894.2918

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 119.670 C1 C3 H9 120.070
C1 C4 C5 119.670 C1 C4 H10 120.070
C2 C5 C4 119.670 C2 C5 H11 120.070
C2 C6 C3 119.670 C2 C6 H12 120.070
C3 C1 C4 120.659 C3 C1 Cl7 119.670
C3 C6 H12 120.260 C4 C1 Cl7 119.670
C4 C5 H11 120.260 C5 C2 C6 120.659
C5 C2 Cl8 119.670 C5 C4 H10 120.260
C6 C2 Cl8 119.670 C6 C3 H9 120.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability