return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-430.579396
Energy at 298.15K-430.584206
Nuclear repulsion energy347.025109
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 B3PW91/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 3230 3117 1.31      
2 A1 3216 3103 7.69      
3 A1 1674 1615 26.89      
4 A1 1557 1502 201.50      
5 A1 1385 1337 2.21      
6 A1 1309 1264 106.30      
7 A1 1161 1121 1.06      
8 A1 1050 1013 6.24      
9 A1 782 754 34.09      
10 A1 578 558 3.75      
11 A1 281 271 0.22      
12 A2 984 950 0.00      
13 A2 865 834 0.00      
14 A2 723 697 0.00      
15 A2 570 550 0.00      
16 A2 190 183 0.00      
17 B1 950 917 6.29      
18 B1 768 741 69.66      
19 B1 470 454 2.66      
20 B1 301 290 0.00      
21 B2 3225 3112 2.44      
22 B2 3203 3091 0.89      
23 B2 1677 1618 7.97      
24 B2 1492 1439 11.68      
25 B2 1281 1236 11.26      
26 B2 1229 1186 33.40      
27 B2 1118 1079 20.10      
28 B2 855 825 16.79      
29 B2 550 531 3.03      
30 B2 440 425 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 18555.0 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 17905.5 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 B3PW91/cc-pVDZ
ABC
0.10862 0.07403 0.04402

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.695 -0.538
C2 0.000 -0.695 -0.538
C3 0.000 -1.396 0.660
C4 0.000 -0.698 1.866
C5 0.000 0.698 1.866
C6 0.000 1.396 0.660
F7 0.000 1.352 -1.707
F8 0.000 -1.352 -1.707
H9 0.000 -2.486 0.626
H10 0.000 -1.249 2.808
H11 0.000 1.249 2.808
H12 0.000 2.486 0.626

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39072.40982.77832.40391.38731.34042.35713.38783.86943.39112.1359
C21.39071.38732.40392.77832.40982.35711.34042.13593.39113.86943.3878
C32.40981.38731.39392.41642.79193.62592.36661.09082.15323.40723.8823
C42.77832.40391.39391.39542.41644.11863.63192.17621.09112.16233.4168
C52.40392.77832.41641.39541.39393.63194.11863.41682.16231.09112.1762
C61.38732.40982.79192.41641.39392.36663.62593.88233.40722.15321.0908
F71.34042.35713.62594.11863.63192.36662.70314.49115.20974.51552.5941
F82.35711.34042.36663.63194.11863.62592.70312.59414.51555.20974.4911
H93.38782.13591.09082.17623.41683.88234.49112.59412.50814.32534.9724
H103.86943.39112.15321.09112.16233.40725.20974.51552.50812.49744.3253
H113.39113.86943.40722.16231.09112.15324.51555.20974.32532.49742.5081
H122.13593.38783.88233.41682.17621.09082.59414.49114.97244.32532.5081

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.332 C1 C2 F8 119.313
C1 C6 C5 119.608 C1 C6 H12 118.579
C2 C1 C6 120.332 C2 C1 F7 119.313
C2 C3 C4 119.608 C2 C3 H9 118.579
C3 C2 F8 120.355 C3 C4 C5 120.060
C3 C4 H10 119.610 C4 C3 H9 121.813
C4 C5 C6 120.060 C4 C5 H11 120.330
C5 C4 H10 120.330 C5 C6 H12 121.813
C6 C1 F7 120.355 C6 C5 H11 119.610
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.130      
2 C 0.130      
3 C -0.022      
4 C 0.008      
5 C 0.008      
6 C -0.022      
7 F -0.158      
8 F -0.158      
9 H 0.028      
10 H 0.014      
11 H 0.014      
12 H 0.028      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.229 2.229
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.946 0.000 0.000
y 0.000 -40.010 0.000
z 0.000 0.000 -43.291
Traceless
 xyz
x -4.295 0.000 0.000
y 0.000 4.608 0.000
z 0.000 0.000 -0.313
Polar
3z2-r2-0.626
x2-y2-5.936
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.744 0.000 0.000
y 0.000 10.895 0.000
z 0.000 0.000 11.130


<r2> (average value of r2) Å2
<r2> 230.012
(<r2>)1/2 15.166