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

using model chemistry: PBEPBE/aug-cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/aug-cc-pCVTZ
 hartrees
Energy at 0K-238.849085
Energy at 298.15K 
HF Energy-238.849085
Nuclear repulsion energy76.398126
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 PBEPBE/aug-cc-pCVTZ
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 2961 2961 43.13 132.73 0.06 0.12
2 A1 1468 1468 0.06 3.58 0.70 0.82
3 A1 1071 1071 90.32 6.39 0.16 0.28
4 A1 505 505 3.73 1.30 0.63 0.77
5 A2 1217 1217 0.00 4.57 0.75 0.86
6 B1 3030 3030 33.44 49.46 0.75 0.86
7 B1 1136 1136 12.79 0.61 0.75 0.86
8 B2 1391 1391 8.09 0.74 0.75 0.86
9 B2 1026 1026 257.61 2.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6902.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6902.8 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 PBEPBE/aug-cc-pCVTZ
ABC
1.62298 0.34465 0.30169

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.508
H2 -0.921 0.000 1.110
H3 0.921 0.000 1.110
F4 0.000 1.115 -0.293
F5 0.000 -1.115 -0.293

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.10071.10071.37201.3720
H21.10071.84252.01442.0144
H31.10071.84252.01442.0144
F41.37202.01442.01442.2291
F51.37202.01442.01442.2291

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 113.638 H2 C1 F4 108.611
H2 C1 F5 108.611 H3 C1 F4 108.611
H3 C1 F5 108.611 F4 C1 F5 108.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.143      
2 H 0.355      
3 H 0.355      
4 F -0.283      
5 F -0.283      


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 1.853 1.853
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.552 0.000 0.000
y 0.000 -19.251 0.000
z 0.000 0.000 -15.634
Traceless
 xyz
x 1.891 0.000 0.000
y 0.000 -3.659 0.000
z 0.000 0.000 1.767
Polar
3z2-r23.535
x2-y23.700
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.662 0.000 0.000
y 0.000 3.035 0.000
z 0.000 0.000 2.826


<r2> (average value of r2) Å2
<r2> 40.108
(<r2>)1/2 6.333