return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2CF2 (Ethene, 1,1-difluoro-)

using model chemistry: B3LYPultrafine/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-277.178028
Energy at 298.15K-277.180559
HF Energy-277.178028
Nuclear repulsion energy117.716799
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 B3LYPultrafine/cc-pVTZ
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 3194 3088 5.94      
2 A1 1774 1715 298.63      
3 A1 1415 1368 3.23      
4 A1 940 908 74.10      
5 A1 551 533 4.19      
6 A2 723 698 0.00      
7 B1 833 805 73.50      
8 B1 636 615 0.09      
9 B2 3293 3184 0.12      
10 B2 1309 1265 222.75      
11 B2 963 931 22.93      
12 B2 442 428 0.81      

Unscaled Zero Point Vibrational Energy (zpe) 8036.7 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 7769.1 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 B3LYPultrafine/cc-pVTZ
ABC
0.36555 0.34867 0.17846

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.382
C2 0.000 0.000 0.066
H3 0.000 0.934 1.917
H4 0.000 -0.934 1.917
F5 0.000 1.080 -0.696
F6 0.000 -1.080 -0.696

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6
C11.31541.07671.07672.34182.3418
C21.31542.07292.07291.32231.3223
H31.07672.07291.86892.61663.2993
H41.07672.07291.86893.29932.6166
F52.34181.32232.61663.29932.1609
F62.34181.32233.29932.61662.1609

picture of Ethene, 1,1-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F5 125.203 C1 C2 F6 125.203
C2 C1 H3 119.786 C2 C1 H4 119.786
H3 C1 H4 120.427 F5 C2 F6 109.593
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.372      
2 C 0.375      
3 H 0.140      
4 H 0.140      
5 F -0.142      
6 F -0.142      


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 1.182 1.182
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.509 0.000 0.000
y 0.000 -22.036 -0.001
z 0.000 -0.001 -20.557
Traceless
 xyz
x -1.212 0.000 0.000
y 0.000 -0.503 -0.001
z 0.000 -0.001 1.715
Polar
3z2-r23.430
x2-y2-0.473
xy0.000
xz0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.414 0.000 0.000
y 0.000 3.525 -0.003
z 0.000 -0.003 4.977


<r2> (average value of r2) Å2
<r2> 63.859
(<r2>)1/2 7.991