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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-429.488454
Energy at 298.15K-429.492938
HF Energy-428.395539
Nuclear repulsion energy346.422738
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 MP2/6-31G*
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 3264 3078 1.48      
2 A1 3251 3066 7.11      
3 A1 1687 1591 23.99      
4 A1 1578 1488 176.97      
5 A1 1469 1385 2.74      
6 A1 1329 1254 91.52      
7 A1 1206 1138 0.83      
8 A1 1065 1004 6.36      
9 A1 784 740 29.72      
10 A1 581 548 3.53      
11 A1 279 263 0.36      
12 A2 884 833 0.00      
13 A2 816 770 0.00      
14 A2 547 515 0.00      
15 A2 437 412 0.00      
16 A2 186 176 0.00      
17 B1 876 826 5.31      
18 B1 757 714 86.68      
19 B1 446 421 1.09      
20 B1 292 276 0.02      
21 B2 3260 3074 1.65      
22 B2 3239 3055 1.13      
23 B2 1686 1590 7.29      
24 B2 1516 1429 12.60      
25 B2 1308 1233 4.99      
26 B2 1249 1178 29.65      
27 B2 1142 1077 21.49      
28 B2 867 818 14.65      
29 B2 551 520 3.38      
30 B2 439 414 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 18496.1 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 17441.9 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 MP2/6-31G*
ABC
0.10853 0.07366 0.04388

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.697 -0.534
C2 0.000 -0.697 -0.534
C3 0.000 -1.402 0.663
C4 0.000 -0.698 1.870
C5 0.000 0.698 1.870
C6 0.000 1.402 0.663
F7 0.000 1.351 -1.715
F8 0.000 -1.351 -1.715
H9 0.000 -2.487 0.630
H10 0.000 -1.246 2.808
H11 0.000 1.246 2.808
H12 0.000 2.487 0.630

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39392.41592.77962.40401.38881.34992.36393.39013.86583.38702.1352
C21.39391.38882.40402.77962.41592.36391.34992.13523.38703.86583.3901
C32.41591.38881.39712.42242.80343.63732.37821.08612.15123.40763.8891
C42.77962.40401.39711.39692.42244.12933.64382.17681.08622.15873.4187
C52.40402.77962.42241.39691.39713.64384.12933.41872.15871.08622.1768
C61.38882.41592.80342.42241.39712.37823.63733.88913.40762.15121.0861
F71.34992.36393.63734.12933.64382.37822.70184.49755.21554.52442.6053
F82.36391.34992.37823.64384.12933.63732.70182.60534.52445.21554.4975
H93.39012.13521.08612.17683.41873.88914.49752.60532.50774.32224.9746
H103.86583.38702.15121.08622.15873.40765.21554.52442.50772.49134.3222
H113.38703.86583.40762.15871.08622.15124.52445.21554.32222.49132.5077
H122.13523.39013.88913.41872.17681.08612.60534.49754.97464.32222.5077

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.494 C1 C2 F8 118.976
C1 C6 C5 119.285 C1 C6 H12 118.743
C2 C1 C6 120.494 C2 C1 F7 118.976
C2 C3 C4 119.285 C2 C3 H9 118.743
C3 C2 F8 120.530 C3 C4 C5 120.221
C3 C4 H10 119.529 C4 C3 H9 121.972
C4 C5 C6 120.221 C4 C5 H11 120.250
C5 C4 H10 120.250 C5 C6 H12 121.972
C6 C1 F7 120.530 C6 C5 H11 119.529
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability