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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-429.603231
Energy at 298.15K-429.608012
Nuclear repulsion energy345.175091
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 QCISD/cc-pVDZ
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 3248 3116 1.88      
2 A1 3231 3100 8.31      
3 A1 1689 1620 27.93      
4 A1 1575 1511 180.91      
5 A1 1320 1267 80.23      
6 A1 1307 1254 19.09      
7 A1 1164 1117 0.14      
8 A1 1051 1009 5.46      
9 A1 779 748 32.77      
10 A1 578 555 3.70      
11 A1 283 271 0.33      
12 A2 965 926 0.00      
13 A2 867 832 0.00      
14 A2 682 654 0.00      
15 A2 554 531 0.00      
16 A2 190 183 0.00      
17 B1 948 910 6.84      
18 B1 776 744 72.33      
19 B1 468 449 1.93      
20 B1 301 289 0.02      
21 B2 3242 3111 3.96      
22 B2 3217 3087 0.94      
23 B2 1695 1626 7.88      
24 B2 1503 1442 11.56      
25 B2 1293 1241 9.82      
26 B2 1237 1187 32.34      
27 B2 1121 1076 17.69      
28 B2 854 819 15.33      
29 B2 550 527 3.67      
30 B2 438 421 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 18563.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 17809.5 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 QCISD/cc-pVDZ
ABC
0.10753 0.07320 0.04355

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.699 -0.543
C2 0.000 -0.699 -0.543
C3 0.000 -1.405 0.662
C4 0.000 -0.703 1.880
C5 0.000 0.703 1.880
C6 0.000 1.405 0.662
F7 0.000 1.356 -1.716
F8 0.000 -1.356 -1.716
H9 0.000 -2.499 0.628
H10 0.000 -1.256 2.824
H11 0.000 1.256 2.824
H12 0.000 2.499 0.628

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39782.42512.79932.42281.39711.34522.36673.40563.89393.41322.1475
C21.39781.39712.42282.79932.42512.36671.34522.14753.41323.89393.4056
C32.42511.39711.40552.43492.81093.64512.37941.09412.16723.42923.9045
C42.79932.42281.40551.40642.43494.14443.65522.18891.09462.17533.4381
C52.42282.79932.43491.40641.40553.65524.14443.43812.17531.09462.1889
C61.39712.42512.81092.43491.40552.37943.64513.90453.42922.16721.0941
F71.34522.36673.64514.14443.65522.37942.71284.51245.23894.54202.6083
F82.36671.34522.37943.65524.14443.64512.71282.60834.54205.23894.5124
H93.40562.14751.09412.18893.43813.90454.51242.60832.52344.35034.9979
H103.89393.41322.16721.09462.17533.42925.23894.54202.52342.51274.3503
H113.41323.89393.42922.17531.09462.16724.54205.23894.35032.51272.5234
H122.14753.40563.90453.43812.18891.09412.60834.51244.99794.35032.5234

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.378 C1 C2 F8 119.262
C1 C6 C5 119.646 C1 C6 H12 118.591
C2 C1 C6 120.378 C2 C1 F7 119.262
C2 C3 C4 119.646 C2 C3 H9 118.591
C3 C2 F8 120.360 C3 C4 C5 119.976
C3 C4 H10 119.672 C4 C3 H9 121.763
C4 C5 C6 119.976 C4 C5 H11 120.352
C5 C4 H10 120.352 C5 C6 H12 121.763
C6 C1 F7 120.360 C6 C5 H11 119.672
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability