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

using model chemistry: B2PLYP/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 B2PLYP/TZVP
 hartrees
Energy at 0K-238.908593
Energy at 298.15K-238.911431
HF Energy-238.727552
Nuclear repulsion energy76.998588
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 B2PLYP/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 3098 2957 44.89 110.67 0.10 0.18
2 A1 1556 1485 1.52 5.26 0.75 0.86
3 A1 1116 1065 110.08 4.78 0.23 0.37
4 A1 530 506 5.30 2.04 0.67 0.80
5 A2 1291 1232 0.00 10.54 0.75 0.86
6 B1 3177 3032 38.91 42.79 0.75 0.86
7 B1 1203 1148 20.48 2.02 0.75 0.86
8 B2 1495 1427 28.37 5.19 0.75 0.86
9 B2 1087 1037 262.55 2.93 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7275.9 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 6944.1 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 B2PLYP/TZVP
ABC
1.64846 0.35006 0.30628

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.505
H2 -0.911 0.000 1.100
H3 0.911 0.000 1.100
F4 0.000 1.106 -0.290
F5 0.000 -1.106 -0.290

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.08831.08831.36211.3621
H21.08831.82151.99681.9968
H31.08831.82151.99681.9968
F41.36211.99681.99682.2121
F51.36211.99681.99682.2121

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 113.611 H2 C1 F4 108.635
H2 C1 F5 108.635 H3 C1 F4 108.635
H3 C1 F5 108.635 F4 C1 F5 108.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.259      
2 H 0.094      
3 H 0.094      
4 F -0.223      
5 F -0.223      


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 2.089 2.089
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.350 0.000 0.000
y 0.000 -19.420 0.000
z 0.000 0.000 -15.399
Traceless
 xyz
x 2.060 0.000 0.000
y 0.000 -4.046 0.000
z 0.000 0.000 1.986
Polar
3z2-r23.971
x2-y24.070
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.012 0.000 0.000
y 0.000 2.259 0.000
z 0.000 0.000 2.128


<r2> (average value of r2) Å2
<r2> 39.594
(<r2>)1/2 6.292