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All results from a given calculation for C6H4F2 (1,4-difluorobenzene)

using model chemistry: CID/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at CID/6-311G*
 hartrees
Energy at 0K-429.460954
Energy at 298.15K-429.466025
Nuclear repulsion energy343.846910
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 CID/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 Ag 3348 3110 0.00      
2 Ag 1779 1653 0.00      
3 Ag 1371 1274 0.00      
4 Ag 1224 1137 0.00      
5 Ag 914 849 0.00      
6 Ag 477 443 0.00      
7 Au 1007 936 0.00      
8 Au 455 423 0.00      
9 B1g 876 814 0.00      
10 B1u 3332 3096 5.74      
11 B1u 1649 1532 296.10      
12 B1u 1317 1223 176.67      
13 B1u 1078 1002 4.53      
14 B1u 786 731 59.37      
15 B2g 967 898 0.00      
16 B2g 715 664 0.00      
17 B2g 404 375 0.00      
18 B2u 3347 3110 1.82      
19 B2u 1529 1421 0.31      
20 B2u 1304 1211 1.41      
21 B2u 1154 1073 16.86      
22 B2u 365 339 5.81      
23 B3g 3334 3097 0.00      
24 B3g 1763 1638 0.00      
25 B3g 1373 1276 0.00      
26 B3g 678 630 0.00      
27 B3g 468 435 0.00      
28 B3u 915 851 109.11      
29 B3u 553 513 17.66      
30 B3u 172 160 2.02      

Unscaled Zero Point Vibrational Energy (zpe) 19325.4 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 17955.3 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 CID/6-311G*
ABC
0.19152 0.04818 0.03849

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.363
C2 0.000 0.000 -1.363
C3 0.000 1.206 0.693
C4 0.000 -1.206 0.693
C5 0.000 -1.206 -0.693
C6 0.000 1.206 -0.693
F7 0.000 0.000 2.695
F8 0.000 0.000 -2.695
H9 0.000 2.126 1.252
H10 0.000 -2.126 1.252
H11 0.000 -2.126 -1.252
H12 0.000 2.126 -1.252

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72571.37941.37942.38342.38341.33224.05782.12902.12903.37033.3703
C22.72572.38342.38341.37941.37944.05781.33223.37033.37032.12902.1290
C31.37942.38342.41172.78171.38612.33713.59621.07683.37853.85822.1520
C41.37942.38342.41171.38612.78172.33713.59623.37851.07682.15203.8582
C52.38341.37942.78171.38612.41173.59622.33713.85822.15201.07683.3785
C62.38341.37941.38612.78172.41173.59622.33712.15203.85823.37851.0768
F71.33224.05782.33712.33713.59623.59625.39002.56942.56944.48344.4834
F84.05781.33223.59623.59622.33712.33715.39004.48344.48342.56942.5694
H92.12903.37031.07683.37853.85822.15202.56944.48344.25224.93492.5045
H102.12903.37033.37851.07682.15203.85822.56944.48344.25222.50454.9349
H113.37032.12903.85822.15201.07683.37854.48342.56944.93492.50454.2522
H123.37032.12902.15203.85823.37851.07684.48342.56942.50454.93494.2522

picture of 1,4-difluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C6 119.049 C1 C3 H9 119.664
C1 C4 C5 119.049 C1 C4 H10 119.664
C2 C5 C4 119.049 C2 C5 H11 119.664
C2 C6 C3 119.049 C2 C6 H12 119.664
C3 C1 C4 121.902 C3 C1 F7 119.049
C3 C6 H12 121.287 C4 C1 F7 119.049
C4 C5 H11 121.287 C5 C2 C6 121.902
C5 C2 F8 119.049 C5 C4 H10 121.287
C6 C2 F8 119.049 C6 C3 H9 121.287
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability