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: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-430.637908
Energy at 298.15K-430.642744
Nuclear repulsion energy349.189640
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 mPW1PW91/6-31G(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 3243 3096 2.19      
2 A1 3228 3081 7.50      
3 A1 1675 1599 29.55      
4 A1 1572 1501 208.11      
5 A1 1367 1305 1.02      
6 A1 1335 1274 92.09      
7 A1 1176 1122 0.77      
8 A1 1057 1010 5.11      
9 A1 791 755 25.85      
10 A1 581 555 2.69      
11 A1 283 270 0.25      
12 A2 977 933 0.00      
13 A2 875 836 0.00      
14 A2 717 685 0.00      
15 A2 575 549 0.00      
16 A2 193 184 0.00      
17 B1 947 904 5.60      
18 B1 778 743 65.48      
19 B1 472 451 1.96      
20 B1 304 290 0.00      
21 B2 3236 3090 3.50      
22 B2 3216 3071 0.69      
23 B2 1678 1602 7.85      
24 B2 1502 1434 13.60      
25 B2 1297 1238 16.97      
26 B2 1245 1189 22.98      
27 B2 1129 1078 16.80      
28 B2 865 826 13.99      
29 B2 557 532 2.79      
30 B2 443 423 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 18655.7 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 17810.6 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 mPW1PW91/6-31G(2df,p)
ABC
0.11005 0.07492 0.04457

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.692 -0.536
C2 0.000 -0.692 -0.536
C3 0.000 -1.390 0.655
C4 0.000 -0.694 1.855
C5 0.000 0.694 1.855
C6 0.000 1.390 0.655
F7 0.000 1.341 -1.695
F8 0.000 -1.341 -1.695
H9 0.000 -2.472 0.622
H10 0.000 -1.241 2.790
H11 0.000 1.241 2.790
H12 0.000 2.472 0.622

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.38402.39882.76342.39061.38061.32852.34023.36953.84623.37042.1238
C21.38401.38062.39062.76342.39882.34021.32852.12383.37043.84623.3695
C32.39881.38061.38682.40492.78043.60322.35081.08252.13963.38763.8625
C42.76342.39061.38681.38842.40494.09183.60822.16321.08282.14883.3977
C52.39062.76342.40491.38841.38683.60824.09183.39772.14881.08282.1632
C61.38062.39882.78042.40491.38682.35083.60323.86253.38762.13961.0825
F71.32852.34023.60324.09183.60822.35082.68174.46215.17454.48582.5789
F82.34021.32852.35083.60824.09183.60322.68172.57894.48585.17454.4621
H93.36952.12381.08252.16323.39773.86254.46212.57892.49274.29894.9443
H103.84623.37042.13961.08282.14883.38765.17454.48582.49272.48104.2989
H113.37043.84623.38762.14881.08282.13964.48585.17454.29892.48102.4927
H122.12383.36953.86253.39772.16321.08252.57894.46214.94434.29892.4927

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.377 C1 C2 F8 119.236
C1 C6 C5 119.499 C1 C6 H12 118.643
C2 C1 C6 120.377 C2 C1 F7 119.236
C2 C3 C4 119.499 C2 C3 H9 118.643
C3 C2 F8 120.386 C3 C4 C5 120.124
C3 C4 H10 119.575 C4 C3 H9 121.858
C4 C5 C6 120.124 C4 C5 H11 120.301
C5 C4 H10 120.301 C5 C6 H12 121.858
C6 C1 F7 120.386 C6 C5 H11 119.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.197      
2 C 0.197      
3 C -0.270      
4 C -0.137      
5 C -0.137      
6 C -0.270      
7 F -0.083      
8 F -0.083      
9 H 0.153      
10 H 0.141      
11 H 0.141      
12 H 0.153      


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 2.090 2.090
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.053 0.000 0.000
y 0.000 -39.380 0.000
z 0.000 0.000 -42.644
Traceless
 xyz
x -4.041 0.000 0.000
y 0.000 4.468 0.000
z 0.000 0.000 -0.427
Polar
3z2-r2-0.855
x2-y2-5.673
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.248 0.000 0.000
y 0.000 10.815 0.000
z 0.000 0.000 11.119


<r2> (average value of r2) Å2
<r2> 227.076
(<r2>)1/2 15.069