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

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-239.050713
Energy at 298.15K-239.053540
HF Energy-239.050713
Nuclear repulsion energy76.948441
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 B3LYP/6-311G*
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 3060 2957 52.51 103.80 0.11 0.20
2 A1 1545 1493 1.96 6.95 0.74 0.85
3 A1 1113 1075 110.03 3.71 0.29 0.45
4 A1 525 507 4.75 2.01 0.72 0.84
5 A2 1284 1241 0.00 12.04 0.75 0.86
6 B1 3131 3025 62.88 49.12 0.75 0.86
7 B1 1191 1151 22.10 2.07 0.75 0.86
8 B2 1489 1438 33.31 5.37 0.75 0.86
9 B2 1090 1053 243.97 2.92 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7212.8 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 6969.8 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 B3LYP/6-311G*
ABC
1.65522 0.34877 0.30560

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.502
H2 -0.912 0.000 1.102
H3 0.912 0.000 1.102
F4 0.000 1.108 -0.290
F5 0.000 -1.108 -0.290

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.09221.09221.36161.3616
H21.09221.82481.99921.9992
H31.09221.82481.99921.9992
F41.36161.99921.99922.2162
F51.36161.99921.99922.2162

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 113.314 H2 C1 F4 108.626
H2 C1 F5 108.626 H3 C1 F4 108.626
H3 C1 F5 108.626 F4 C1 F5 108.946
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.113      
2 H 0.182      
3 H 0.182      
4 F -0.239      
5 F -0.239      


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 1.923 1.923
CHELPG        
AIM        
ESP 0.013 0.000 1.969 1.969


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.134 0.000 0.000
y 0.000 -18.876 0.000
z 0.000 0.000 -15.110
Traceless
 xyz
x 1.859 0.000 0.000
y 0.000 -3.754 0.000
z 0.000 0.000 1.896
Polar
3z2-r23.791
x2-y23.742
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.845 0.000 0.000
y 0.000 1.999 0.000
z 0.000 0.000 1.909


<r2> (average value of r2) Å2
<r2> 39.441
(<r2>)1/2 6.280