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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: MP2=FULL/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-429.827522
Energy at 298.15K-429.832373
Nuclear repulsion energy349.220271
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(2df,p)
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 3277 3080 1.51      
2 A1 3262 3066 3.27      
3 A1 1667 1567 37.61      
4 A1 1569 1474 193.19      
5 A1 1477 1388 6.66      
6 A1 1334 1253 75.52      
7 A1 1182 1111 0.73      
8 A1 1054 991 5.47      
9 A1 782 735 24.89      
10 A1 576 541 2.23      
11 A1 282 265 0.30      
12 A2 957 899 0.00      
13 A2 873 821 0.00      
14 A2 734 690 0.00      
15 A2 581 547 0.00      
16 A2 195 183 0.00      
17 B1 935 879 5.97      
18 B1 782 735 66.12      
19 B1 483 454 1.89      
20 B1 307 289 0.01      
21 B2 3269 3073 0.50      
22 B2 3252 3057 0.48      
23 B2 1669 1568 8.39      
24 B2 1491 1402 13.86      
25 B2 1285 1207 16.45      
26 B2 1237 1163 18.82      
27 B2 1127 1059 19.34      
28 B2 866 814 13.01      
29 B2 556 523 2.59      
30 B2 441 415 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 18749.9 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 17623.0 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(2df,p)
ABC
0.11017 0.07487 0.04458

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.691 -0.535
C2 0.000 -0.691 -0.535
C3 0.000 -1.389 0.655
C4 0.000 -0.694 1.857
C5 0.000 0.694 1.857
C6 0.000 1.389 0.655
F7 0.000 1.340 -1.696
F8 0.000 -1.340 -1.696
H9 0.000 -2.469 0.620
H10 0.000 -1.240 2.789
H11 0.000 1.240 2.789
H12 0.000 2.469 0.620

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.38292.39742.76452.39201.38021.33012.34023.36543.84503.36962.1205
C21.38291.38022.39202.76452.39742.34021.33012.12053.36963.84503.3654
C32.39741.38021.38782.40522.77863.60312.35231.08062.13903.38643.8588
C42.76452.39201.38781.38872.40524.09453.61132.16311.08062.14773.3967
C52.39202.76452.40521.38871.38783.61134.09453.39672.14771.08062.1631
C61.38022.39742.77862.40521.38782.35233.60313.85883.38642.13901.0806
F71.33012.34023.60314.09453.61132.35232.68104.45895.17504.48672.5771
F82.34021.33012.35233.61134.09453.60312.68102.57714.48675.17504.4589
H93.36542.12051.08062.16313.39673.85884.45892.57712.49304.29714.9386
H103.84503.36962.13901.08062.14773.38645.17504.48672.49302.48054.2971
H113.36963.84503.38642.14771.08062.13904.48675.17504.29712.48052.4930
H122.12053.36543.85883.39672.16311.08062.57714.45894.93864.29712.4930

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.374 C1 C2 F8 119.206
C1 C6 C5 119.578 C1 C6 H12 118.512
C2 C1 C6 120.374 C2 C1 F7 119.206
C2 C3 C4 119.578 C2 C3 H9 118.512
C3 C2 F8 120.421 C3 C4 C5 120.048
C3 C4 H10 119.608 C4 C3 H9 121.910
C4 C5 C6 120.048 C4 C5 H11 120.344
C5 C4 H10 120.344 C5 C6 H12 121.910
C6 C1 F7 120.421 C6 C5 H11 119.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability