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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: MP2=FULL/6-31G*

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=FULL/6-31G*
 hartrees
Energy at 0K-429.523315
Energy at 298.15K-429.527876
Nuclear repulsion energy346.806030
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/6-31G*
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 3265 3077 1.32      
2 A1 3253 3065 7.24      
3 A1 1690 1592 24.33      
4 A1 1581 1490 178.10      
5 A1 1471 1386 2.68      
6 A1 1332 1255 91.29      
7 A1 1208 1139 0.83      
8 A1 1067 1005 6.42      
9 A1 786 741 29.54      
10 A1 583 549 3.51      
11 A1 280 264 0.35      
12 A2 893 841 0.00      
13 A2 827 779 0.00      
14 A2 565 532 0.00      
15 A2 475 448 0.00      
16 A2 188 177 0.00      
17 B1 888 837 6.27      
18 B1 764 720 85.55      
19 B1 453 427 1.25      
20 B1 296 279 0.02      
21 B2 3261 3073 1.61      
22 B2 3240 3053 1.15      
23 B2 1689 1591 7.32      
24 B2 1518 1430 12.67      
25 B2 1310 1234 4.92      
26 B2 1252 1180 29.83      
27 B2 1144 1078 21.40      
28 B2 869 819 14.65      
29 B2 553 521 3.35      
30 B2 441 415 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 18570.3 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 17496.9 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 120.432 C1 C2 F8 119.116
C1 C6 C5 119.455 C1 C6 H12 118.634
C2 C1 C6 120.432 C2 C1 F7 119.116
C2 C3 C4 119.455 C2 C3 H9 118.634
C3 C2 F8 120.452 C3 C4 C5 120.113
C3 C4 H10 119.581 C4 C3 H9 121.911
C4 C5 C6 120.113 C4 C5 H11 120.307
C5 C4 H10 120.307 C5 C6 H12 121.911
C6 C1 F7 120.452 C6 C5 H11 119.581
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability