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

using model chemistry: PBEPBE/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-238.747060
Energy at 298.15K-238.749855
HF Energy-238.747060
Nuclear repulsion energy76.324446
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/cc-pVDZ
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 2939 2922 53.80 128.06 0.10 0.19
2 A1 1450 1441 2.42 8.82 0.71 0.83
3 A1 1087 1080 94.81 3.70 0.33 0.49
4 A1 509 506 3.37 2.08 0.73 0.85
5 A2 1206 1199 0.00 12.63 0.75 0.86
6 B1 3005 2988 70.30 61.89 0.75 0.86
7 B1 1129 1123 17.85 2.47 0.75 0.86
8 B2 1402 1393 32.02 4.75 0.75 0.86
9 B2 1074 1068 219.22 2.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6899.9 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 6859.9 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/cc-pVDZ
ABC
1.62177 0.34397 0.30128

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.503
H2 -0.925 0.000 1.123
H3 0.925 0.000 1.123
F4 0.000 1.116 -0.292
F5 0.000 -1.116 -0.292

Atom - Atom Distances (Å)
  C1 H2 H3 F4 F5
C11.11371.11371.36991.3699
H21.11371.85052.02552.0255
H31.11371.85052.02552.0255
F41.36992.02552.02552.2311
F51.36992.02552.02552.2311

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 112.365 H2 C1 F4 108.847
H2 C1 F5 108.847 H3 C1 F4 108.847
H3 C1 F5 108.847 F4 C1 F5 109.040
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.312      
2 H 0.028      
3 H 0.028      
4 F -0.184      
5 F -0.184      


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 1.632 1.632
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.211 0.000 0.000
y 0.000 -18.217 0.000
z 0.000 0.000 -15.042
Traceless
 xyz
x 1.418 0.000 0.000
y 0.000 -3.090 0.000
z 0.000 0.000 1.673
Polar
3z2-r23.345
x2-y23.005
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.941 0.000 0.000
y 0.000 2.074 0.000
z 0.000 0.000 1.992


<r2> (average value of r2) Å2
<r2> 39.778
(<r2>)1/2 6.307