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

using model chemistry: QCISD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-337.632027
Energy at 298.15K 
HF Energy-336.789668
Nuclear repulsion energy134.430827
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/6-31G(2df,p)
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 3170 3003 41.55      
2 A1 1187 1124 96.89      
3 A1 721 683 13.99      
4 E 1461 1385 75.63      
4 E 1461 1385 75.63      
5 E 1243 1177 216.47      
5 E 1243 1177 216.47      
6 E 519 492 3.07      
6 E 519 492 3.07      

Unscaled Zero Point Vibrational Energy (zpe) 5762.3 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 5459.2 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 QCISD/6-31G(2df,p)
ABC
0.34884 0.34884 0.19137

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

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 1.426
F3 0.000 1.243 -0.127
F4 1.077 -0.622 -0.127
F5 -1.077 -0.622 -0.127

Atom - Atom Distances (Å)
  C1 H2 F3 F4 F5
C11.09071.32661.32661.3266
H21.09071.98981.98981.9898
F31.32661.98982.15332.1533
F41.32661.98982.15332.1533
F51.32661.98982.15332.1533

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 110.423 H2 C1 F4 110.423
H2 C1 F5 110.423 F3 C1 F4 108.503
F3 C1 F5 108.503 F4 C1 F5 108.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability