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 PF3CH2 (phosphorane, trifluoromethylene-)

using model chemistry: MP4=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4=FULL/3-21G
 hartrees
Energy at 0K-675.054192
Energy at 298.15K-675.058029
HF Energy-674.501382
Nuclear repulsion energy264.596020
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 MP4=FULL/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 A' 3231 3162        
2 A' 1466 1435        
3 A' 1173 1148        
4 A' 928 908        
5 A' 790 773        
6 A' 665 651        
7 A' 432 423        
8 A' 333 326        
9 A' 243 238        
10 A" 3342 3271        
11 A" 1053 1031        
12 A" 908 889        
13 A" 444 434        
14 A" 348 341        
15 A" 174 170        

Unscaled Zero Point Vibrational Energy (zpe) 7763.6 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 7599.0 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 MP4=FULL/3-21G
ABC
0.14712 0.13456 0.11930

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.031 0.139 0.000
C2 -0.496 1.719 0.000
F3 1.504 -0.431 0.000
F4 -0.496 -0.723 1.293
F5 -0.496 -0.723 -1.293
H6 -0.585 2.247 -0.939
H7 -0.585 2.247 0.939

Atom - Atom Distances (Å)
  P1 C2 F3 F4 F5 H6 H7
P11.64711.63761.62251.62252.37342.3734
C21.64712.93662.76392.76391.08081.0808
F31.63762.93662.39992.39993.52403.5240
F41.62252.76392.39992.58623.71692.9934
F51.62252.76392.39992.58622.99343.7169
H62.37341.08083.52403.71692.99341.8773
H72.37341.08083.52402.99343.71691.8773

picture of phosphorane, trifluoromethylene- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H6 119.481 P1 C2 H7 119.481
C2 P1 F3 126.765 C2 P1 F4 115.409
C2 P1 F5 115.409 F3 P1 F4 94.804
F3 P1 F5 94.804 F4 P1 F5 105.681
H6 C2 H7 120.572
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability