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

using model chemistry: B1B95/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/TZVP
 hartrees
Energy at 0K-239.017112
Energy at 298.15K-239.019958
HF Energy-239.017112
Nuclear repulsion energy77.454165
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 B1B95/TZVP
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 3078 2946 46.67 114.05 0.10 0.18
2 A1 1537 1471 1.09 5.43 0.75 0.86
3 A1 1139 1090 114.17 4.24 0.26 0.41
4 A1 536 512 5.45 1.91 0.69 0.82
5 A2 1286 1230 0.00 11.02 0.75 0.86
6 B1 3151 3016 41.10 44.89 0.75 0.86
7 B1 1195 1143 19.64 1.90 0.75 0.86
8 B2 1481 1417 27.63 5.33 0.75 0.86
9 B2 1117 1069 266.41 2.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7259.3 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 6946.5 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 B1B95/TZVP
ABC
1.66618 0.35451 0.31025

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.499
H2 -0.909 0.000 1.100
H3 0.909 0.000 1.100
F4 0.000 1.099 -0.289
F5 0.000 -1.099 -0.289

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.08961.08961.35231.3523
H21.08961.81871.99061.9906
H31.08961.81871.99061.9906
F41.35231.99061.99062.1978
F51.35231.99061.99062.1978

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 113.132 H2 C1 F4 108.729
H2 C1 F5 108.729 H3 C1 F4 108.729
H3 C1 F5 108.729 F4 C1 F5 108.708
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.221      
2 H 0.100      
3 H 0.100      
4 F -0.211      
5 F -0.211      


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 2.030 2.030
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.196 0.000 0.000
y 0.000 -19.158 0.000
z 0.000 0.000 -15.270
Traceless
 xyz
x 2.019 0.000 0.000
y 0.000 -3.925 0.000
z 0.000 0.000 1.907
Polar
3z2-r23.814
x2-y23.963
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.027 0.000 0.000
y 0.000 2.225 0.000
z 0.000 0.000 2.124


<r2> (average value of r2) Å2
<r2> 39.138
(<r2>)1/2 6.256