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-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 B3LYP/aug-cc-pVDZ
 hartrees
Energy at 0K-430.769464
Energy at 298.15K-430.774232
Nuclear repulsion energy345.951332
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-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 3215 3119 1.47      
2 A1 3201 3106 7.78      
3 A1 1651 1602 24.88      
4 A1 1529 1484 184.00      
5 A1 1352 1312 0.33      
6 A1 1281 1244 134.88      
7 A1 1166 1132 1.49      
8 A1 1043 1012 7.08      
9 A1 769 747 36.93      
10 A1 577 560 5.50      
11 A1 285 276 0.22      
12 A2 979 950 0.00      
13 A2 859 834 0.00      
14 A2 718 697 0.00      
15 A2 564 547 0.00      
16 A2 188 182 0.00      
17 B1 942 914 5.34      
18 B1 759 736 81.20      
19 B1 460 447 3.67      
20 B1 290 282 0.00      
21 B2 3209 3114 2.39      
22 B2 3190 3095 1.10      
23 B2 1640 1592 9.16      
24 B2 1475 1431 11.15      
25 B2 1271 1233 1.66      
26 B2 1195 1159 37.03      
27 B2 1109 1076 30.27      
28 B2 846 821 16.87      
29 B2 544 528 3.95      
30 B2 437 424 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 18370.9 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 17827.1 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-pVDZ
ABC
0.10782 0.07365 0.04376

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.697 -0.536
C2 0.000 -0.697 -0.536
C3 0.000 -1.401 0.662
C4 0.000 -0.699 1.870
C5 0.000 0.699 1.870
C6 0.000 1.401 0.662
F7 0.000 1.357 -1.713
F8 0.000 -1.357 -1.713
H9 0.000 -2.490 0.632
H10 0.000 -1.249 2.810
H11 0.000 1.249 2.810
H12 0.000 2.490 0.632

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C11.39312.41612.78152.40591.39051.34952.36703.39403.87093.39192.1403
C21.39311.39052.40592.78152.41612.36701.34952.14033.39193.87093.3940
C32.41611.39051.39642.42292.80263.64032.37571.08932.15343.41123.8916
C42.78152.40591.39641.39892.42294.13103.64252.17701.08932.16343.4215
C52.40592.78152.42291.39891.39643.64254.13103.42152.16341.08932.1770
C61.39052.41612.80262.42291.39642.37573.64033.89163.41122.15341.0893
F71.34952.36703.64034.13103.64252.37572.71464.50555.22034.52462.6039
F82.36701.34952.37573.64254.13103.64032.71462.60394.52465.22034.5055
H93.39402.14031.08932.17703.42153.89164.50552.60392.50774.32744.9804
H103.87093.39192.15341.08932.16343.41125.22034.52462.50772.49734.3274
H113.39193.87093.41122.16341.08932.15344.52465.22034.32742.49732.5077
H122.14033.39403.89163.42152.17701.08932.60394.50554.98044.32742.5077

picture of orthodifluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.455 C1 C2 F8 119.316
C1 C6 C5 119.373 C1 C6 H12 118.835
C2 C1 C6 120.455 C2 C1 F7 119.316
C2 C3 C4 119.373 C2 C3 H9 118.835
C3 C2 F8 120.229 C3 C4 C5 120.172
C3 C4 H10 119.553 C4 C3 H9 121.792
C4 C5 C6 120.172 C4 C5 H11 120.275
C5 C4 H10 120.275 C5 C6 H12 121.792
C6 C1 F7 120.229 C6 C5 H11 119.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.354      
2 C 0.354      
3 C 0.882      
4 C 0.747      
5 C 0.747      
6 C 0.882      
7 F -0.579      
8 F -0.579      
9 H -0.696      
10 H -0.708      
11 H -0.708      
12 H -0.696      


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 2.693 2.693
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.863 0.000 0.000
y 0.000 -41.203 0.000
z 0.000 0.000 -45.335
Traceless
 xyz
x -3.594 0.000 0.000
y 0.000 4.896 0.000
z 0.000 0.000 -1.302
Polar
3z2-r2-2.604
x2-y2-5.660
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.434 0.000 0.000
y 0.000 12.254 0.000
z 0.000 0.000 12.628


<r2> (average value of r2) Å2
<r2> 232.041
(<r2>)1/2 15.233