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

using model chemistry: PBEPBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-238.852379
Energy at 298.15K-238.855167
HF Energy-238.852379
Nuclear repulsion energy76.462149
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/Def2TZVPP
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 2963 2927 46.22 123.64 0.09 0.16
2 A1 1472 1454 0.34 4.19 0.71 0.83
3 A1 1076 1063 92.01 4.35 0.26 0.41
4 A1 507 501 3.56 1.77 0.69 0.81
5 A2 1219 1205 0.00 7.76 0.75 0.86
6 B1 3032 2995 42.96 48.92 0.75 0.86
7 B1 1141 1127 14.53 1.78 0.75 0.86
8 B2 1401 1384 12.96 2.49 0.75 0.86
9 B2 1038 1026 245.56 2.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6924.1 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 6840.3 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 PBEPBE/Def2TZVPP
ABC
1.62797 0.34502 0.30211

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.506
H2 -0.920 0.000 1.110
H3 0.920 0.000 1.110
F4 0.000 1.114 -0.292
F5 0.000 -1.114 -0.292

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.10091.10091.37031.3703
H21.10091.84072.01342.0134
H31.10091.84072.01342.0134
F41.37032.01342.01342.2280
F51.37032.01342.01342.2280

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 113.448 H2 C1 F4 108.635
H2 C1 F5 108.635 H3 C1 F4 108.635
H3 C1 F5 108.635 F4 C1 F5 108.764
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.163      
2 H 0.098      
3 H 0.098      
4 F -0.179      
5 F -0.179      


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 1.793 1.793
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.466 0.000 0.000
y 0.000 -18.938 0.000
z 0.000 0.000 -15.473
Traceless
 xyz
x 1.739 0.000 0.000
y 0.000 -3.468 0.000
z 0.000 0.000 1.729
Polar
3z2-r23.457
x2-y23.472
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.311 0.000 0.000
y 0.000 2.619 0.000
z 0.000 0.000 2.448


<r2> (average value of r2) Å2
<r2> 39.951
(<r2>)1/2 6.321