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All results from a given calculation for CHF2 (difluoromethyl radical)

using model chemistry: ROHF/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A
Energy calculated at ROHF/6-31+G**
 hartrees
Energy at 0K-237.275947
Energy at 298.15K-237.277261
HF Energy-237.275947
Nuclear repulsion energy70.928759
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 ROHF/6-31+G**
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' 3383 2896 27.51 77.47 0.25 0.40
2 A' 1271 1088 128.59 4.67 0.18 0.30
3 A' 1152 986 17.53 2.28 0.70 0.83
4 A' 585 501 7.91 1.01 0.73 0.84
5 A" 1477 1264 96.64 2.78 0.75 0.86
6 A" 1302 1114 267.46 4.86 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4584.8 cm-1
Scaled (by 0.8559) Zero Point Vibrational Energy (zpe) 3924.1 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 ROHF/6-31+G**
ABC
2.28027 0.37455 0.32683

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.030 0.507 0.000
H2 -0.726 1.270 0.000
F3 0.030 -0.239 1.083
F4 0.030 -0.239 -1.083

Atom - Atom Distances (Å)
  C1 H2 F3 F4
C11.07461.31551.3155
H21.07462.00622.0062
F31.31552.00622.1667
F41.31552.00622.1667

picture of difluoromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 113.770 H2 C1 F4 113.770
F3 C1 F4 110.881
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.488      
2 H 0.188      
3 F -0.338      
4 F -0.338      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.652 1.634 0.000 1.759
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.143 -0.860 0.000
y -0.860 -14.684 0.000
z 0.000 0.000 -18.138
Traceless
 xyz
x 1.269 -0.860 0.000
y -0.860 1.956 0.000
z 0.000 0.000 -3.224
Polar
3z2-r2-6.449
x2-y2-0.458
xy-0.860
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 35.848
(<r2>)1/2 5.987