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All results from a given calculation for CHF3 (Methane, trifluoro-)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-77.682725
Energy at 298.15K 
HF Energy-77.682725
Nuclear repulsion energy77.368000
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 HF/CEP-31G*
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 3416 3067 64.59 60.69 0.20 0.34
2 A1 1248 1121 142.65 3.71 0.01 0.02
3 A1 759 682 22.02 1.51 0.39 0.56
4 E 1548 1390 113.38 2.07 0.75 0.86
4 E 1548 1390 113.38 2.07 0.75 0.86
5 E 1312 1178 311.29 3.60 0.75 0.86
5 E 1312 1178 311.29 3.60 0.75 0.86
6 E 550 494 5.01 0.82 0.75 0.86
6 E 550 494 5.01 0.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6120.9 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 5496.5 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 HF/CEP-31G*
ABC
0.35070 0.35070 0.19243

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.336
H2 0.000 0.000 1.420
F3 0.000 1.240 -0.127
F4 1.074 -0.620 -0.127
F5 -1.074 -0.620 -0.127

Atom - Atom Distances (Å)
  C1 H2 F3 F4 F5
C11.08341.32361.32361.3236
H21.08341.98251.98251.9825
F31.32361.98252.14732.1473
F41.32361.98252.14732.1473
F51.32361.98252.14732.1473

picture of Methane, trifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 110.504 H2 C1 F4 110.504
H2 C1 F5 110.504 F3 C1 F4 108.419
F3 C1 F5 108.419 F4 C1 F5 108.418
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.379      
2 H 0.178      
3 F -0.186      
4 F -0.186      
5 F -0.186      


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 1.857 1.857
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.344 0.000 0.000
y 0.000 -22.344 0.000
z 0.000 0.000 -18.264
Traceless
 xyz
x -2.040 0.000 0.000
y 0.000 -2.040 0.000
z 0.000 0.000 4.080
Polar
3z2-r28.159
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.855 0.000 0.000
y 0.000 1.855 0.000
z 0.000 0.000 1.754


<r2> (average value of r2) Å2
<r2> 48.192
(<r2>)1/2 6.942