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All results from a given calculation for C6H4F2 (1,4-difluorobenzene)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-430.626081
Energy at 298.15K 
HF Energy-430.112042
Nuclear repulsion energy342.201896
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 B2PLYP=FULLultrafine/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 Ag 3235 3102 0.00 292.63 0.13 0.22
2 Ag 1651 1583 0.00 4.83 0.75 0.86
3 Ag 1273 1221 0.00 32.01 0.06 0.12
4 Ag 1160 1113 0.00 8.04 0.57 0.73
5 Ag 867 832 0.00 40.63 0.05 0.09
6 Ag 455 436 0.00 5.65 0.29 0.45
7 Au 965 926 0.00 0.00 0.11 0.20
8 Au 433 415 0.00 0.00 0.13 0.22
9 B1g 823 789 0.00 0.58 0.75 0.86
10 B1u 3217 3085 3.48 0.00 0.65 0.79
11 B1u 1542 1479 243.06 0.00 0.00 0.00
12 B1u 1229 1179 202.61 0.00 0.56 0.72
13 B1u 1033 991 1.63 0.00 0.00 0.00
14 B1u 750 719 65.93 0.00 0.73 0.84
15 B2g 946 908 0.00 0.02 0.75 0.86
16 B2g 707 678 0.00 1.11 0.75 0.86
17 B2g 377 362 0.00 3.05 0.75 0.86
18 B2u 3232 3100 0.07 0.00 0.54 0.70
19 B2u 1445 1386 0.47 0.00 0.47 0.64
20 B2u 1358 1302 0.00 0.00 0.48 0.65
21 B2u 1106 1060 10.77 0.00 0.52 0.68
22 B2u 348 334 4.40 0.00 0.51 0.67
23 B3g 3217 3086 0.00 112.90 0.75 0.86
24 B3g 1655 1588 0.00 8.73 0.75 0.86
25 B3g 1291 1239 0.00 1.37 0.75 0.86
26 B3g 645 618 0.00 5.01 0.75 0.86
27 B3g 446 427 0.00 0.04 0.75 0.86
28 B3u 864 829 74.18 0.00 0.75 0.86
29 B3u 524 502 18.86 0.00 0.75 0.86
30 B3u 160 154 1.75 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18476.7 cm-1
Scaled (by 0.9591) Zero Point Vibrational Energy (zpe) 17721.0 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 B2PLYP=FULLultrafine/aug-cc-pVTZ
ABC
0.19000 0.04770 0.03813

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.362
C2 0.000 0.000 -1.362
C3 0.000 1.211 0.695
C4 0.000 -1.211 0.695
C5 0.000 -1.211 -0.695
C6 0.000 1.211 -0.695
F7 0.000 0.000 2.712
F8 0.000 0.000 -2.712
H9 0.000 2.132 1.256
H10 0.000 -2.132 1.256
H11 0.000 -2.132 -1.256
H12 0.000 2.132 -1.256

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72361.38261.38262.38672.38671.34994.07352.13462.13463.37593.3759
C22.72362.38672.38671.38261.38264.07351.34993.37593.37592.13462.1346
C31.38262.38672.42212.79251.38972.35253.61541.07823.38973.87042.1570
C41.38262.38672.42211.38972.79252.35253.61543.38971.07822.15703.8704
C52.38671.38262.79251.38972.42213.61542.35253.87042.15701.07823.3897
C62.38671.38261.38972.79252.42213.61542.35252.15703.87043.38971.0782
F71.34994.07352.35252.35253.61543.61545.42342.58172.58174.50394.5039
F84.07351.34993.61543.61542.35252.35255.42344.50394.50392.58172.5817
H92.13463.37591.07823.38973.87042.15702.58174.50394.26384.94852.5114
H102.13463.37593.38971.07822.15703.87042.58174.50394.26382.51144.9485
H113.37592.13463.87042.15701.07823.38974.50392.58174.94852.51144.2638
H123.37592.13462.15703.87043.38971.07824.50392.58172.51144.94854.2638

picture of 1,4-difluorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C6 118.844 C1 C3 H9 119.812
C1 C4 C5 118.844 C1 C4 H10 119.812
C2 C5 C4 118.844 C2 C5 H11 119.812
C2 C6 C3 118.844 C2 C6 H12 119.812
C3 C1 C4 122.313 C3 C1 F7 118.844
C3 C6 H12 121.344 C4 C1 F7 118.844
C4 C5 H11 121.344 C5 C2 C6 122.313
C5 C2 F8 118.844 C5 C4 H10 121.344
C6 C2 F8 118.844 C6 C3 H9 121.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.649      
2 C 0.649      
3 C -0.564      
4 C -0.564      
5 C -0.564      
6 C -0.564      
7 F -0.451      
8 F -0.451      
9 H 0.465      
10 H 0.465      
11 H 0.465      
12 H 0.465      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.792 0.000 0.000
y 0.000 -37.461 0.000
z 0.000 0.000 -52.573
Traceless
 xyz
x -1.775 0.000 0.000
y 0.000 12.222 0.000
z 0.000 0.000 -10.446
Polar
3z2-r2-20.893
x2-y2-9.331
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.392 0.000 0.000
y 0.000 11.857 0.000
z 0.000 0.000 12.425


<r2> (average value of r2) Å2
<r2> 254.374
(<r2>)1/2 15.949