return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: QCISD/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-337.823905
Energy at 298.15K 
HF Energy-336.900685
Nuclear repulsion energy134.275938
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/6-311+G(3df,2p)
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 3181 3034 26.01      
2 A1 1174 1119 98.33      
3 A1 716 683 13.87      
4 E 1432 1365 52.30      
4 E 1432 1365 52.30      
5 E 1207 1151 282.98      
5 E 1207 1151 282.98      
6 E 518 494 2.81      
6 E 518 494 2.81      

Unscaled Zero Point Vibrational Energy (zpe) 5692.4 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 5428.8 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/6-311+G(3df,2p)
ABC
0.34802 0.34802 0.19090

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.337
H2 0.000 0.000 1.424
F3 0.000 1.245 -0.128
F4 1.078 -0.622 -0.128
F5 -1.078 -0.622 -0.128

Atom - Atom Distances (Å)
  C1 H2 F3 F4 F5
C11.08731.32851.32851.3285
H21.08731.98921.98921.9892
F31.32851.98922.15592.1559
F41.32851.98922.15592.1559
F51.32851.98922.15592.1559

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 110.458 H2 C1 F4 110.458
H2 C1 F5 110.458 F3 C1 F4 108.467
F3 C1 F5 108.467 F4 C1 F5 108.467
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability