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

using model chemistry: TPSSh/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-430.906272
Energy at 298.15K 
HF Energy-430.906272
Nuclear repulsion energy341.488894
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/Def2TZVPP
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 3207 3207 0.00 304.00 0.14 0.25
2 Ag 1643 1643 0.00 5.08 0.72 0.84
3 Ag 1266 1266 0.00 25.85 0.07 0.12
4 Ag 1159 1159 0.00 7.69 0.59 0.74
5 Ag 862 862 0.00 37.17 0.06 0.11
6 Ag 450 450 0.00 5.34 0.38 0.55
7 Au 961 961 0.00 0.00 0.00 0.00
8 Au 431 431 0.00 0.00 0.00 0.00
9 B1g 812 812 0.00 0.00 0.75 0.86
10 B1u 3193 3193 6.13 0.00 0.00 0.00
11 B1u 1538 1538 231.96 0.00 0.00 0.00
12 B1u 1223 1223 207.75 0.00 0.00 0.00
13 B1u 1026 1026 1.52 0.00 0.00 0.00
14 B1u 744 744 64.30 0.00 0.00 0.00
15 B2g 938 938 0.00 0.15 0.75 0.86
16 B2g 707 707 0.00 0.50 0.75 0.86
17 B2g 374 374 0.00 2.95 0.75 0.86
18 B2u 3207 3207 1.49 0.00 0.00 0.00
19 B2u 1442 1442 0.51 0.00 0.00 0.00
20 B2u 1347 1347 0.03 0.00 0.00 0.00
21 B2u 1103 1103 11.51 0.00 0.00 0.00
22 B2u 343 343 4.15 0.00 0.00 0.00
23 B3g 3195 3195 0.00 123.44 0.75 0.86
24 B3g 1650 1650 0.00 8.02 0.75 0.86
25 B3g 1306 1306 0.00 1.52 0.75 0.86
26 B3g 640 640 0.00 6.64 0.75 0.86
27 B3g 437 437 0.00 0.07 0.75 0.86
28 B3u 852 852 72.19 0.00 0.00 0.00
29 B3u 515 515 18.18 0.00 0.00 0.00
30 B3u 158 158 1.45 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 18364.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18364.2 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/Def2TZVPP
ABC
0.18906 0.04752 0.03798

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.364
C2 0.000 0.000 -1.364
C3 0.000 1.214 0.696
C4 0.000 -1.214 0.696
C5 0.000 -1.214 -0.696
C6 0.000 1.214 -0.696
F7 0.000 0.000 2.717
F8 0.000 0.000 -2.717
H9 0.000 2.139 1.257
H10 0.000 -2.139 1.257
H11 0.000 -2.139 -1.257
H12 0.000 2.139 -1.257

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 F7 F8 H9 H10 H11 H12
C12.72821.38561.38562.39102.39101.35264.08092.14142.14143.38323.3832
C22.72822.39102.39101.38561.38564.08091.35263.38323.38322.14142.1414
C31.38562.39102.42772.79841.39182.35743.62211.08203.39933.88012.1612
C41.38562.39102.42771.39182.79842.35743.62213.39931.08202.16123.8801
C52.39101.38562.79841.39182.42773.62212.35743.88012.16121.08203.3993
C62.39101.38561.39182.79842.42773.62212.35742.16123.88013.39931.0820
F71.35264.08092.35742.35743.62213.62215.43352.58922.58924.51314.5131
F84.08091.35263.62213.62212.35742.35745.43354.51314.51312.58922.5892
H92.14143.38321.08203.39933.88012.16122.58924.51314.27754.96202.5147
H102.14143.38323.39931.08202.16123.88012.58924.51314.27752.51474.9620
H113.38322.14143.88012.16121.08203.39934.51312.58924.96202.51474.2775
H123.38322.14142.16123.88013.39931.08204.51312.58922.51474.96204.2775

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 118.832 C1 C3 H9 119.909
C1 C4 C5 118.832 C1 C4 H10 119.909
C2 C5 C4 118.832 C2 C5 H11 119.909
C2 C6 C3 118.832 C2 C6 H12 119.909
C3 C1 C4 122.336 C3 C1 F7 118.832
C3 C6 H12 121.259 C4 C1 F7 118.832
C4 C5 H11 121.259 C5 C2 C6 122.336
C5 C2 F8 118.832 C5 C4 H10 121.259
C6 C2 F8 118.832 C6 C3 H9 121.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.225      
2 C 0.225      
3 C -0.104      
4 C -0.104      
5 C -0.104      
6 C -0.104      
7 F -0.192      
8 F -0.192      
9 H 0.088      
10 H 0.088      
11 H 0.088      
12 H 0.088      


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 5.710 0.000 0.000
y 0.000 11.493 0.000
z 0.000 0.000 12.145


<r2> (average value of r2) Å2
<r2> 254.770
(<r2>)1/2 15.962