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

using model chemistry: QCISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD/3-21G*
 hartrees
Energy at 0K-335.401406
Energy at 298.15K 
HF Energy-334.949201
Nuclear repulsion energy130.215016
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 QCISD/3-21G*
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 3172 3048 58.59      
2 A1 1124 1081 107.59      
3 A1 663 637 22.49      
4 E 1480 1423 93.09      
4 E 1480 1423 93.09      
5 E 1224 1177 157.39      
5 E 1224 1177 157.39      
6 E 485 466 7.70      
6 E 485 466 7.70      

Unscaled Zero Point Vibrational Energy (zpe) 5668.1 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 5447.6 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 QCISD/3-21G*
ABC
0.32702 0.32702 0.17903

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.349
H2 0.000 0.000 1.436
F3 0.000 1.285 -0.131
F4 1.113 -0.643 -0.131
F5 -1.113 -0.643 -0.131

Atom - Atom Distances (Å)
  C1 H2 F3 F4 F5
C11.08741.37201.37201.3720
H21.08742.02682.02682.0268
F31.37202.02682.22632.2263
F41.37202.02682.22632.2263
F51.37202.02682.22632.2263

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 110.468 H2 C1 F4 110.468
H2 C1 F5 110.468 F3 C1 F4 108.456
F3 C1 F5 108.456 F4 C1 F5 108.456
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability