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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G3
 hartrees
Energy at 0K-430.459482
Energy at 298.15K-430.465198
Nuclear repulsion energy350.415045
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 HF/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 A1 3405 3208 3.27      
2 A1 3389 3193 14.48      
3 A1 1816 1711 34.92      
4 A1 1701 1603 210.81      
5 A1 1425 1343 122.25      
6 A1 1325 1248 4.09      
7 A1 1212 1142 0.96      
8 A1 1126 1061 7.44      
9 A1 841 793 36.44      
10 A1 627 591 4.81      
11 A1 307 290 0.47      
12 A2 1105 1041 0.00      
13 A2 967 911 0.00      
14 A2 765 721 0.00      
15 A2 612 577 0.00      
16 A2 211 199 0.00      
17 B1 1066 1005 8.42      
18 B1 857 808 93.49      
19 B1 512 483 0.97      
20 B1 328 309 0.34      
21 B2 3400 3204 8.89      
22 B2 3374 3179 1.82      
23 B2 1818 1713 8.29      
24 B2 1629 1535 16.70      
25 B2 1412 1331 9.90      
26 B2 1343 1266 42.59      
27 B2 1214 1144 16.28      
28 B2 925 872 18.07      
29 B2 595 561 5.07      
30 B2 476 449 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 19892.5 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 18742.7 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/6-31G*
ABC
0.10879 0.07381 0.04398

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.695 -0.534
C2 0.000 -0.695 -0.534
C3 0.000 -1.397 0.661
C4 0.000 -0.697 1.867
C5 0.000 0.697 1.867
C6 0.000 1.397 0.661
F7 0.000 1.350 -1.711
F8 0.000 -1.350 -1.711
H9 0.000 -2.481 0.627
H10 0.000 -1.245 2.804
H11 0.000 1.245 2.804
H12 0.000 2.481 0.627

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.38902.40842.77482.40041.38601.34772.35953.38103.86013.38252.1306
C21.38901.38602.40042.77482.40842.35951.34772.13063.38253.86013.3810
C32.40841.38601.39352.41612.79313.62952.37291.08492.14773.40123.8776
C42.77482.40041.39351.39492.41614.12233.63692.17191.08532.15673.4115
C52.40042.77482.41611.39491.39353.63694.12233.41152.15671.08532.1719
C61.38602.40842.79312.41611.39352.37293.62953.87763.40122.14771.0849
F71.34772.35953.62954.12233.63692.37292.70054.48845.20764.51602.5974
F82.35951.34772.37293.63694.12233.62952.70052.59744.51605.20764.4884
H93.38102.13061.08492.17193.41153.87764.48842.59742.50284.31514.9619
H103.86013.38252.14771.08532.15673.40125.20764.51602.50282.49024.3151
H113.38253.86013.40122.15671.08532.14774.51605.20764.31512.49022.5028
H122.13063.38103.87763.41152.17191.08492.59744.48844.96194.31512.5028

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.685 C1 C2 F8 119.209
C1 C6 C5 119.259 C1 C6 H12 118.822
C2 C1 C6 120.685 C2 C1 F7 119.209
C2 C3 C4 119.259 C2 C3 H9 118.822
C3 C2 F8 120.106 C3 C4 C5 120.056
C3 C4 H10 119.611 C4 C3 H9 121.918
C4 C5 C6 120.056 C4 C5 H11 120.333
C5 C4 H10 120.333 C5 C6 H12 121.918
C6 C1 F7 120.106 C6 C5 H11 119.611
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability