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All results from a given calculation for C6H4F2 (orthodifluorobenzene)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-427.885789
Energy at 298.15K-427.890557
Nuclear repulsion energy343.352517
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 PBEPBE/3-21G
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 3171 3142 0.66      
2 A1 3153 3124 7.15      
3 A1 1583 1568 16.66      
4 A1 1523 1509 131.72      
5 A1 1336 1324 0.03      
6 A1 1302 1291 51.93      
7 A1 1186 1175 0.50      
8 A1 1033 1023 5.52      
9 A1 759 752 16.19      
10 A1 584 578 2.77      
11 A1 267 265 0.27      
12 A2 987 978 0.00      
13 A2 872 864 0.00      
14 A2 749 742 0.00      
15 A2 574 569 0.00      
16 A2 187 186 0.00      
17 B1 955 946 13.56      
18 B1 762 756 100.45      
19 B1 479 475 5.54      
20 B1 304 301 0.13      
21 B2 3164 3135 2.13      
22 B2 3140 3112 0.92      
23 B2 1601 1587 3.80      
24 B2 1464 1451 10.17      
25 B2 1283 1271 5.78      
26 B2 1227 1216 13.97      
27 B2 1115 1104 17.00      
28 B2 866 858 11.51      
29 B2 535 530 1.68      
30 B2 428 425 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 18293.4 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 18126.9 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 PBEPBE/3-21G
ABC
0.10648 0.07219 0.04302

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.703 -0.541
C2 0.000 -0.703 -0.541
C3 0.000 -1.398 0.672
C4 0.000 -0.702 1.889
C5 0.000 0.702 1.889
C6 0.000 1.398 0.672
F7 0.000 1.376 -1.732
F8 0.000 -1.376 -1.732
H9 0.000 -2.488 0.642
H10 0.000 -1.253 2.831
H11 0.000 1.253 2.831
H12 0.000 2.488 0.642

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.40632.42582.80642.42951.39771.36852.39653.40313.89863.41672.1411
C21.40631.39772.42952.80642.42582.39651.36852.14113.41673.89863.4031
C32.42581.39771.40162.42632.79533.67092.40461.09052.16403.41903.8855
C42.80642.42951.40161.40332.42634.17483.68332.17801.09222.17043.4243
C52.42952.80642.42631.40331.40163.68334.17483.42432.17041.09222.1780
C61.39772.42582.79532.42631.40162.40463.67093.88553.41902.16401.0905
F71.36852.39653.67094.17483.68332.40462.75234.53525.26704.56532.6219
F82.39651.36852.40463.68334.17483.67092.75232.62194.56535.26704.5352
H93.40312.14111.09052.17803.42433.88554.53522.62192.51314.33454.9755
H103.89863.41672.16401.09222.17043.41905.26704.56532.51312.50684.3345
H113.41673.89863.41902.17041.09222.16404.56535.26704.33452.50682.5131
H122.14113.40313.88553.42432.17801.09052.62194.53524.97554.33452.5131

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.793 C1 C2 F8 119.459
C1 C6 C5 120.433 C1 C6 H12 118.221
C2 C1 C6 119.793 C2 C1 F7 119.459
C2 C3 C4 120.433 C2 C3 H9 118.221
C3 C2 F8 120.747 C3 C4 C5 119.774
C3 C4 H10 119.884 C4 C3 H9 121.346
C4 C5 C6 119.774 C4 C5 H11 120.342
C5 C4 H10 120.342 C5 C6 H12 121.346
C6 C1 F7 120.747 C6 C5 H11 119.884
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.237      
2 C 0.237      
3 C -0.231      
4 C -0.201      
5 C -0.201      
6 C -0.231      
7 F -0.244      
8 F -0.244      
9 H 0.228      
10 H 0.210      
11 H 0.210      
12 H 0.228      


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 2.114 2.114
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.850 0.000 0.000
y 0.000 -39.715 0.000
z 0.000 0.000 -42.703
Traceless
 xyz
x -5.641 0.000 0.000
y 0.000 5.061 0.000
z 0.000 0.000 0.580
Polar
3z2-r21.160
x2-y2-7.135
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.416 0.000 0.000
y 0.000 10.166 0.000
z 0.000 0.000 10.739


<r2> (average value of r2) Å2
<r2> 234.474
(<r2>)1/2 15.313