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

using model chemistry: TPSSh/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at TPSSh/aug-cc-pVDZ
 hartrees
Energy at 0K-430.790738
Energy at 298.15K 
HF Energy-430.790738
Nuclear repulsion energy339.635058
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 TPSSh/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 Ag 3218 3113 0.00 323.17 0.13 0.23
2 Ag 1641 1587 0.00 5.15 0.75 0.86
3 Ag 1254 1213 0.00 32.98 0.06 0.12
4 Ag 1153 1115 0.00 8.97 0.56 0.72
5 Ag 854 826 0.00 40.83 0.05 0.10
6 Ag 444 430 0.00 5.77 0.31 0.47
7 Au 950 919 0.00 0.00 0.00 0.00
8 Au 427 413 0.00 0.00 0.00 0.00
9 B1g 805 779 0.00 0.32 0.75 0.86
10 B1u 3203 3098 6.66 0.00 0.00 0.00
11 B1u 1523 1473 229.25 0.00 0.00 0.00
12 B1u 1199 1160 206.11 0.00 0.00 0.00
13 B1u 1016 982 6.06 0.00 0.00 0.00
14 B1u 731 707 67.69 0.00 0.00 0.00
15 B2g 929 898 0.00 0.00 0.75 0.86
16 B2g 698 675 0.00 0.77 0.75 0.86
17 B2g 368 356 0.00 2.88 0.75 0.86
18 B2u 3217 3112 1.88 0.00 0.00 0.00
19 B2u 1433 1387 0.55 0.00 0.00 0.00
20 B2u 1368 1323 0.01 0.00 0.00 0.00
21 B2u 1098 1062 10.20 0.00 0.00 0.00
22 B2u 338 327 4.54 0.00 0.00 0.00
23 B3g 3205 3100 0.00 130.40 0.75 0.86
24 B3g 1656 1602 0.00 8.64 0.75 0.86
25 B3g 1289 1247 0.00 1.41 0.75 0.86
26 B3g 633 613 0.00 5.43 0.75 0.86
27 B3g 430 416 0.00 0.07 0.75 0.86
28 B3u 844 817 75.19 0.00 0.00 0.00
29 B3u 505 489 18.41 0.00 0.00 0.00
30 B3u 156 151 1.72 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18293.0 cm-1
Scaled (by 0.9673) Zero Point Vibrational Energy (zpe) 17694.8 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 TPSSh/aug-cc-pVDZ
ABC
0.18677 0.04706 0.03759

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.367
C2 0.000 0.000 -1.367
C3 0.000 1.221 0.700
C4 0.000 -1.221 0.700
C5 0.000 -1.221 -0.700
C6 0.000 1.221 -0.700
F7 0.000 0.000 2.731
F8 0.000 0.000 -2.731
H9 0.000 2.152 1.265
H10 0.000 -2.152 1.265
H11 0.000 -2.152 -1.265
H12 0.000 2.152 -1.265

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.73491.39191.39192.40092.40091.36344.09842.15432.15433.39983.3998
C22.73492.40092.40091.39191.39194.09841.36343.39983.39982.15432.1543
C31.39192.40092.44252.81491.39922.37023.64141.08883.42013.90342.1736
C41.39192.40092.44251.39922.81492.37023.64143.42011.08882.17363.9034
C52.40091.39192.81491.39922.44253.64142.37023.90342.17361.08883.4201
C62.40091.39191.39922.81492.44253.64142.37022.17363.90343.42011.0888
F71.36344.09842.37022.37023.64143.64145.46182.60392.60394.53824.5382
F84.09841.36343.64143.64142.37022.37025.46184.53824.53822.60392.6039
H92.15433.39981.08883.42013.90342.17362.60394.53824.30384.99202.5293
H102.15433.39983.42011.08882.17363.90342.60394.53824.30382.52934.9920
H113.39982.15433.90342.17361.08883.42014.53822.60394.99202.52934.3038
H123.39982.15432.17363.90343.42011.08884.53822.60392.52934.99204.3038

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 118.673 C1 C3 H9 120.062
C1 C4 C5 118.673 C1 C4 H10 120.062
C2 C5 C4 118.673 C2 C5 H11 120.062
C2 C6 C3 118.673 C2 C6 H12 120.062
C3 C1 C4 122.654 C3 C1 F7 118.673
C3 C6 H12 121.265 C4 C1 F7 118.673
C4 C5 H11 121.265 C5 C2 C6 122.654
C5 C2 F8 118.673 C5 C4 H10 121.265
C6 C2 F8 118.673 C6 C3 H9 121.265
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.372      
2 C 0.372      
3 C 0.644      
4 C 0.644      
5 C 0.644      
6 C 0.644      
7 F -0.614      
8 F -0.614      
9 H -0.523      
10 H -0.523      
11 H -0.523      
12 H -0.523      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.378 0.000 0.000
y 0.000 12.036 0.000
z 0.000 0.000 12.781


<r2> (average value of r2) Å2
<r2> 257.414
(<r2>)1/2 16.044