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

using model chemistry: MP4=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 MP4=FULL/6-31G*
 hartrees
Energy at 0K-1149.667868
Energy at 298.15K-1149.671830
HF Energy-1148.499635
Nuclear repulsion energy447.271212
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 MP4=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 3218 3094        
2 Ag 1640 1577        
3 Ag 1216 1169        
4 Ag 1125 1082        
5 Ag 761 732        
6 Ag 330 318        
7 Au 893 859        
8 Au 407 391        
9 B1g 808 777        
10 B1u 3203 3080        
11 B1u 1524 1466        
12 B1u 1128 1085        
13 B1u 1023 984        
14 B1u 555 533        
15 B2g 864 830        
16 B2g 538 517        
17 B2g 292 281        
18 B2u 3216 3093        
19 B2u 1437 1381        
20 B2u 1355 1303        
21 B2u 1138 1094        
22 B2u 222 213        
23 B3g 3204 3081        
24 B3g 1627 1564        
25 B3g 1322 1271        
26 B3g 637 612        
27 B3g 355 342        
28 B3u 789 758        
29 B3u 475 457        
30 B3u 103 99        

Unscaled Zero Point Vibrational Energy (zpe) 17701.3 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 17021.6 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 MP4=FULL/6-31G*
ABC
0.18787 0.02207 0.01975

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.389
C2 0.000 0.000 -1.389
C3 0.000 1.216 0.699
C4 0.000 -1.216 0.699
C5 0.000 -1.216 -0.699
C6 0.000 1.216 -0.699
Cl7 0.000 0.000 3.136
Cl8 0.000 0.000 -3.136
H9 0.000 2.156 1.249
H10 0.000 -2.156 1.249
H11 0.000 -2.156 -1.249
H12 0.000 2.156 -1.249

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.77901.39841.39842.41682.41681.74664.52562.16062.16063.40773.4077
C22.77902.41682.41681.39841.39844.52561.74663.40773.40772.16062.1606
C31.39842.41682.43232.80551.39822.72364.02341.08923.41683.89472.1634
C41.39842.41682.43231.39822.80552.72364.02343.41681.08922.16343.8947
C52.41681.39842.80551.39822.43234.02342.72363.89472.16341.08923.4168
C62.41681.39841.39822.80552.43234.02342.72362.16343.89473.41681.0892
Cl71.74664.52562.72362.72364.02344.02346.27222.86502.86504.88694.8869
Cl84.52561.74664.02344.02342.72362.72366.27224.88694.88692.86502.8650
H92.16063.40771.08923.41683.89472.16342.86504.88694.31214.98392.4990
H102.16063.40773.41681.08922.16343.89472.86504.88694.31212.49904.9839
H113.40772.16063.89472.16341.08923.41684.88692.86504.98392.49904.3121
H123.40772.16062.16343.89473.41681.08924.88692.86502.49904.98394.3121

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 119.583 C1 C3 H9 120.066
C1 C4 C5 119.583 C1 C4 H10 120.066
C2 C5 C4 119.583 C2 C5 H11 120.066
C2 C6 C3 119.583 C2 C6 H12 120.066
C3 C1 C4 120.834 C3 C1 Cl7 119.583
C3 C6 H12 120.351 C4 C1 Cl7 119.583
C4 C5 H11 120.351 C5 C2 C6 120.834
C5 C2 Cl8 119.583 C5 C4 H10 120.351
C6 C2 Cl8 119.583 C6 C3 H9 120.351
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability