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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-429.758117
Energy at 298.15K 
HF Energy-428.546106
Nuclear repulsion energy347.520396
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/TZVP
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 3261 3091 1.95      
2 A1 3247 3078 5.37      
3 A1 1659 1572 28.42      
4 A1 1553 1472 181.84      
5 A1 1438 1363 3.07      
6 A1 1311 1242 122.59      
7 A1 1186 1124 1.00      
8 A1 1054 999 7.00      
9 A1 775 735 32.94      
10 A1 579 549 3.64      
11 A1 290 275 0.32      
12 A2 738 699 0.00      
13 A2 685 649 0.00      
14 A2 463 439 0.00      
15 A2 144 136 0.00      
16 A2 1514i 1435i 0.00      
17 B1 705 668 95.56      
18 B1 656 622 0.18      
19 B1 358 339 1.50      
20 B1 182 173 0.00      
21 B2 3255 3085 1.32      
22 B2 3235 3067 0.88      
23 B2 1658 1571 9.86      
24 B2 1496 1418 11.72      
25 B2 1295 1227 3.70      
26 B2 1226 1162 37.56      
27 B2 1126 1067 28.20      
28 B2 856 812 15.82      
29 B2 554 525 3.36      
30 B2 441 418 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 16954.0 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 16070.7 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/TZVP
ABC
0.10870 0.07430 0.04413

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.694 -0.535
C2 0.000 -0.694 -0.535
C3 0.000 -1.395 0.659
C4 0.000 -0.696 1.862
C5 0.000 0.696 1.862
C6 0.000 1.395 0.659
F7 0.000 1.352 -1.705
F8 0.000 -1.352 -1.705
H9 0.000 -2.476 0.627
H10 0.000 -1.242 2.796
H11 0.000 1.242 2.796
H12 0.000 2.476 0.627

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.38822.40592.77092.39681.38431.34262.35733.37573.85223.37512.1266
C21.38821.38432.39682.77092.40592.35731.34262.12663.37513.85223.3757
C32.40591.38431.39092.41232.78943.62422.36451.08142.14193.39363.8704
C42.77092.39681.39091.39262.41234.11333.62672.16611.08142.15143.4040
C52.39682.77092.41231.39261.39093.62674.11333.40402.15141.08142.1661
C61.38432.40592.78942.41231.39092.36453.62423.87043.39362.14191.0814
F71.34262.35733.62424.11333.62672.36452.70454.48205.19474.50192.5880
F82.35731.34262.36453.62674.11333.62422.70452.58804.50195.19474.4820
H93.37572.12661.08142.16613.40403.87044.48202.58802.49534.30404.9512
H103.85223.37512.14191.08142.15143.39365.19474.50192.49532.48394.3040
H113.37513.85223.39362.15141.08142.14194.50195.19474.30402.48392.4953
H122.12663.37573.87043.40402.16611.08142.58804.48204.95124.30402.4953

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.404 C1 C2 F8 119.356
C1 C6 C5 119.455 C1 C6 H12 118.678
C2 C1 C6 120.404 C2 C1 F7 119.356
C2 C3 C4 119.455 C2 C3 H9 118.678
C3 C2 F8 120.240 C3 C4 C5 120.141
C3 C4 H10 119.556 C4 C3 H9 121.867
C4 C5 C6 120.141 C4 C5 H11 120.304
C5 C4 H10 120.304 C5 C6 H12 121.867
C6 C1 F7 120.240 C6 C5 H11 119.556
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability