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: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-430.883450
Energy at 298.15K-430.888279
Nuclear repulsion energy347.929322
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 B3LYP/aug-cc-pVTZ
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 3207 3103 1.84      
2 A1 3193 3089 7.45      
3 A1 1646 1592 26.43      
4 A1 1542 1492 177.49      
5 A1 1332 1289 0.65      
6 A1 1294 1252 149.01      
7 A1 1176 1138 1.34      
8 A1 1048 1014 6.95      
9 A1 776 750 33.71      
10 A1 583 564 5.16      
11 A1 288 278 0.23      
12 A2 996 963 0.00      
13 A2 873 844 0.00      
14 A2 725 701 0.00      
15 A2 565 547 0.00      
16 A2 189 183 0.00      
17 B1 958 927 4.91      
18 B1 770 745 79.76      
19 B1 466 451 3.50      
20 B1 293 283 0.00      
21 B2 3201 3097 2.70      
22 B2 3182 3079 0.98      
23 B2 1641 1587 9.74      
24 B2 1492 1444 11.42      
25 B2 1291 1249 3.65      
26 B2 1220 1180 41.66      
27 B2 1125 1088 21.55      
28 B2 864 836 19.43      
29 B2 552 534 4.00      
30 B2 443 429 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 18463.6 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 17863.5 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 B3LYP/aug-cc-pVTZ
ABC
0.10898 0.07447 0.04424

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.693 -0.533
C2 0.000 -0.693 -0.533
C3 0.000 -1.392 0.659
C4 0.000 -0.695 1.859
C5 0.000 0.695 1.859
C6 0.000 1.392 0.659
F7 0.000 1.351 -1.703
F8 0.000 -1.351 -1.703
H9 0.000 -2.473 0.629
H10 0.000 -1.240 2.792
H11 0.000 1.240 2.792
H12 0.000 2.473 0.629

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.38602.40222.76522.39171.38231.34262.35553.37233.84593.36982.1255
C21.38601.38232.39172.76522.40222.35551.34262.12553.36983.84593.3723
C32.40221.38231.38752.40752.78493.62062.36281.08072.13843.38773.8654
C42.76522.39171.38751.39002.40754.10783.62182.16161.08072.14803.3980
C52.39172.76522.40751.39001.38753.62184.10783.39802.14801.08072.1616
C61.38232.40222.78492.40751.38752.36283.62063.86543.38772.13841.0807
F71.34262.35553.62064.10783.62182.36282.70254.47915.18844.49672.5878
F82.35551.34262.36283.62184.10783.62062.70252.58784.49675.18844.4791
H93.37232.12551.08072.16163.39803.86544.47912.58782.49004.29664.9455
H103.84593.36982.13841.08072.14803.38775.18844.49672.49002.47914.2966
H113.36983.84593.38772.14801.08072.13844.49675.18844.29662.47912.4900
H122.12553.37233.86543.39802.16161.08072.58784.47914.94554.29662.4900

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.400 C1 C2 F8 119.361
C1 C6 C5 119.421 C1 C6 H12 118.795
C2 C1 C6 120.400 C2 C1 F7 119.361
C2 C3 C4 119.421 C2 C3 H9 118.795
C3 C2 F8 120.240 C3 C4 C5 120.179
C3 C4 H10 119.563 C4 C3 H9 121.784
C4 C5 C6 120.179 C4 C5 H11 120.257
C5 C4 H10 120.257 C5 C6 H12 121.784
C6 C1 F7 120.240 C6 C5 H11 119.563
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.488      
2 C 0.488      
3 C -0.561      
4 C -0.337      
5 C -0.337      
6 C -0.561      
7 F -0.424      
8 F -0.424      
9 H 0.398      
10 H 0.436      
11 H 0.436      
12 H 0.398      


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 2.588 2.588
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.643 0.000 0.000
y 0.000 -41.179 0.000
z 0.000 0.000 -45.150
Traceless
 xyz
x -3.479 0.000 0.000
y 0.000 4.718 0.000
z 0.000 0.000 -1.239
Polar
3z2-r2-2.478
x2-y2-5.464
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.448 0.000 0.000
y 0.000 12.132 0.000
z 0.000 0.000 12.495


<r2> (average value of r2) Å2
<r2> 229.686
(<r2>)1/2 15.155