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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-428.901631
Energy at 298.15K-428.906480
Nuclear repulsion energy344.147282
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 CISD/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 3321 3115 1.57      
2 A1 3300 3095 10.39      
3 A1 1742 1633 12.47      
4 A1 1622 1521 117.80      
5 A1 1353 1269 63.27      
6 A1 1332 1249 4.26      
7 A1 1247 1169 0.16      
8 A1 1096 1027 6.14      
9 A1 798 748 32.13      
10 A1 607 570 6.23      
11 A1 285 268 0.93      
12 A2 980 919 0.00      
13 A2 888 833 0.00      
14 A2 621 582 0.00      
15 A2 562 527 0.00      
16 A2 195 183 0.00      
17 B1 972 912 7.25      
18 B1 811 760 114.73      
19 B1 474 444 1.20      
20 B1 299 280 0.79      
21 B2 3315 3109 2.68      
22 B2 3284 3080 2.24      
23 B2 1736 1628 3.14      
24 B2 1567 1469 11.14      
25 B2 1363 1278 0.60      
26 B2 1280 1200 26.00      
27 B2 1181 1107 19.58      
28 B2 897 841 14.71      
29 B2 560 526 4.99      
30 B2 449 421 0.93      

Unscaled Zero Point Vibrational Energy (zpe) 19067.9 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 17881.9 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 CISD/6-31G
ABC
0.10667 0.07277 0.04326

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.694 -0.528
C2 0.000 -0.694 -0.528
C3 0.000 -1.399 0.668
C4 0.000 -0.700 1.877
C5 0.000 0.700 1.877
C6 0.000 1.399 0.668
F7 0.000 1.370 -1.728
F8 0.000 -1.370 -1.728
H9 0.000 -2.479 0.635
H10 0.000 -1.245 2.811
H11 0.000 1.245 2.811
H12 0.000 2.479 0.635

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.38832.41092.77992.40521.38831.37752.38793.37923.86063.38342.1300
C21.38831.38832.40522.77992.41092.38791.37752.13003.38343.86063.3792
C32.41091.38831.39712.42242.79853.66212.39631.08002.14803.40323.8781
C42.77992.40521.39711.39942.42244.15743.66732.16991.08072.15693.4126
C52.40522.77992.42241.39941.39713.66734.15743.41262.15691.08072.1699
C61.38832.41092.79852.42241.39712.39633.66213.87813.40322.14801.0800
F71.37752.38793.66214.15743.66732.39632.74034.51645.23814.54032.6102
F82.38791.37752.39633.66734.15743.66212.74032.61024.54035.23814.5164
H93.37922.13001.08002.16993.41263.87814.51642.61022.50104.31264.9575
H103.86063.38342.14801.08072.15693.40325.23814.54032.50102.48994.3126
H113.38343.86063.40322.15691.08072.14804.54035.23814.31262.48992.5010
H122.13003.37923.87813.41262.16991.08002.61024.51644.95754.31262.5010

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.525 C1 C2 F8 119.390
C1 C6 C5 119.429 C1 C6 H12 118.771
C2 C1 C6 120.525 C2 C1 F7 119.390
C2 C3 C4 119.429 C2 C3 H9 118.771
C3 C2 F8 120.085 C3 C4 C5 120.046
C3 C4 H10 119.652 C4 C3 H9 121.800
C4 C5 C6 120.046 C4 C5 H11 120.301
C5 C4 H10 120.301 C5 C6 H12 121.800
C6 C1 F7 120.085 C6 C5 H11 119.652
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability