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All results from a given calculation for CH2F2 (Methane, difluoro-)

using model chemistry: BLYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/6-31G**
 hartrees
Energy at 0K-238.935207
Energy at 298.15K-238.937990
HF Energy-238.935207
Nuclear repulsion energy76.007190
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 BLYP/6-31G**
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 2946 2923 55.31 106.36 0.11 0.20
2 A1 1506 1494 3.28 9.53 0.74 0.85
3 A1 1074 1066 87.31 4.72 0.23 0.38
4 A1 496 492 3.12 2.05 0.73 0.85
5 A2 1223 1213 0.00 15.24 0.75 0.86
6 B1 3005 2982 78.56 52.89 0.75 0.86
7 B1 1153 1144 16.43 3.11 0.75 0.86
8 B2 1445 1434 37.92 6.16 0.75 0.86
9 B2 1060 1052 201.31 2.93 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6952.8 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 6899.3 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 BLYP/6-31G**
ABC
1.62398 0.33945 0.29756

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.504
H2 -0.917 0.000 1.121
H3 0.917 0.000 1.121
F4 0.000 1.124 -0.293
F5 0.000 -1.124 -0.293

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.10491.10491.37751.3775
H21.10491.83402.02502.0250
H31.10491.83402.02502.0250
F41.37752.02502.02502.2471
F51.37752.02502.02502.2471

picture of Methane, difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 112.189 H2 C1 F4 108.828
H2 C1 F5 108.828 H3 C1 F4 108.828
H3 C1 F5 108.828 F4 C1 F5 109.304
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.360      
2 H 0.081      
3 H 0.081      
4 F -0.261      
5 F -0.261      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.601 1.601
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.178 0.000 0.000
y 0.000 -18.112 0.000
z 0.000 0.000 -14.992
Traceless
 xyz
x 1.374 0.000 0.000
y 0.000 -3.027 0.000
z 0.000 0.000 1.653
Polar
3z2-r23.306
x2-y22.934
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.026 0.000 0.000
y 0.000 2.110 0.000
z 0.000 0.000 2.038


<r2> (average value of r2) Å2
<r2> 40.036
(<r2>)1/2 6.327