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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-429.715570
Energy at 298.15K-429.720111
Nuclear repulsion energy346.733307
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 MP2/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3247 3085 1.94      
2 A1 3233 3072 6.34      
3 A1 1659 1577 29.91      
4 A1 1553 1476 189.16      
5 A1 1453 1380 5.22      
6 A1 1311 1246 103.98      
7 A1 1173 1115 0.80      
8 A1 1047 995 6.39      
9 A1 774 736 30.87      
10 A1 576 547 3.43      
11 A1 286 272 0.34      
12 A2 890 846 0.00      
13 A2 820 779 0.00      
14 A2 587 558 0.00      
15 A2 416 395 0.00      
16 A2 182 173 0.00      
17 B1 890 846 7.07      
18 B1 756 718 87.14      
19 B1 453 430 2.67      
20 B1 293 279 0.00      
21 B2 3241 3080 1.99      
22 B2 3221 3061 0.81      
23 B2 1661 1578 8.78      
24 B2 1488 1414 11.95      
25 B2 1286 1222 7.54      
26 B2 1230 1168 33.07      
27 B2 1119 1063 22.52      
28 B2 856 813 16.00      
29 B2 550 522 3.37      
30 B2 437 415 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 18344.3 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 17430.8 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 MP2/6-311G**
ABC
0.10843 0.07386 0.04393

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.696 -0.539
C2 0.000 -0.696 -0.539
C3 0.000 -1.399 0.660
C4 0.000 -0.699 1.870
C5 0.000 0.699 1.870
C6 0.000 1.399 0.660
F7 0.000 1.352 -1.709
F8 0.000 -1.352 -1.709
H9 0.000 -2.483 0.626
H10 0.000 -1.247 2.806
H11 0.000 1.247 2.806
H12 0.000 2.483 0.626

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39302.41422.78402.40881.38981.34132.35923.38573.86873.39002.1322
C21.39301.38982.40882.78402.41422.35921.34132.13223.39003.86873.3857
C32.41421.38981.39732.42172.79753.63062.36981.08452.15113.40663.8816
C42.78402.40881.39731.39842.42174.12513.63802.17471.08472.15983.4166
C52.40882.78402.42171.39841.39733.63804.12513.41662.15981.08472.1747
C61.38982.41422.79752.42171.39732.36983.63063.88163.40662.15111.0845
F71.34132.35923.63064.12513.63802.36982.70434.48955.20984.51632.5938
F82.35921.34132.36983.63804.12513.63062.70432.59384.51635.20984.4895
H93.38572.13221.08452.17473.41663.88164.48952.59382.50634.32054.9654
H103.86873.39002.15111.08472.15983.40665.20984.51632.50632.49434.3205
H113.39003.86873.40662.15981.08472.15114.51635.20984.32052.49432.5063
H122.13223.38573.88163.41662.17471.08452.59384.48954.96544.32052.5063

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.353 C1 C2 F8 119.264
C1 C6 C5 119.604 C1 C6 H12 118.510
C2 C1 C6 120.353 C2 C1 F7 119.264
C2 C3 C4 119.604 C2 C3 H9 118.510
C3 C2 F8 120.383 C3 C4 C5 120.042
C3 C4 H10 119.617 C4 C3 H9 121.886
C4 C5 C6 120.042 C4 C5 H11 120.341
C5 C4 H10 120.341 C5 C6 H12 121.886
C6 C1 F7 120.383 C6 C5 H11 119.617
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability