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

using model chemistry: HF/CEP-121G

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-121G
 hartrees
Energy at 0K-77.565944
Energy at 298.15K 
HF Energy-77.565944
Nuclear repulsion energy75.259306
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-121G
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 3384 3088 22.34 54.79 0.20 0.34
2 A1 1142 1042 139.17 7.74 0.00 0.01
3 A1 683 623 30.28 2.68 0.39 0.56
4 E 1487 1357 67.05 4.11 0.75 0.86
4 E 1487 1357 67.05 4.11 0.75 0.86
5 E 1217 1111 304.28 6.00 0.75 0.86
5 E 1217 1111 304.28 6.00 0.75 0.86
6 E 497 454 8.62 1.70 0.75 0.86
6 E 497 454 8.62 1.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5805.4 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 5297.4 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-121G
ABC
0.33143 0.33143 0.18189

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.355
H2 0.000 0.000 1.431
F3 0.000 1.275 -0.132
F4 1.104 -0.638 -0.132
F5 -1.104 -0.638 -0.132

Atom - Atom Distances (Å)
  C1 H2 F3 F4 F5
C11.07551.36511.36511.3651
H21.07552.01702.01702.0170
F31.36512.01702.20872.2087
F41.36512.01702.20872.2087
F51.36512.01702.20872.2087

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 110.910 H2 C1 F4 110.910
H2 C1 F5 110.910 F3 C1 F4 107.995
F3 C1 F5 107.995 F4 C1 F5 107.995
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.528      
2 H 0.178      
3 F -0.235      
4 F -0.235      
5 F -0.235      


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 2.499 2.499
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.919 0.000 0.000
y 0.000 -23.919 0.000
z 0.000 0.000 -18.213
Traceless
 xyz
x -2.853 0.000 0.000
y 0.000 -2.853 0.000
z 0.000 0.000 5.706
Polar
3z2-r211.411
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 1.838 0.000 0.000
y 0.000 1.838 0.000
z 0.000 0.000 1.580


<r2> (average value of r2) Å2
<r2> 50.818
(<r2>)1/2 7.129