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 CH2FCl (fluorochloromethane)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-599.228910
Energy at 298.15K-599.231571
Nuclear repulsion energy100.960739
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3109 2974 29.59      
2 A' 1533 1467 0.57      
3 A' 1405 1344 54.06      
4 A' 1137 1088 163.26      
5 A' 750 718 101.76      
6 A' 383 366 1.44      
7 A" 3185 3047 18.23      
8 A" 1270 1215 2.30      
9 A" 1029 985 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 6900.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 6601.5 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 B3PW91/6-31G*
ABC
1.40828 0.18759 0.17109

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.809 0.000
F2 1.355 0.769 0.000
Cl3 -0.675 -0.847 0.000
H4 -0.355 1.307 0.905
H5 -0.355 1.307 -0.905

Atom - Atom Distances (Å)
  C1 F2 Cl3 H4 H5
C11.35511.78831.09191.0919
F21.35512.59442.00742.0074
Cl31.78832.59442.35792.3579
H41.09192.00742.35791.8095
H51.09192.00742.35791.8095

picture of fluorochloromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Cl3 110.490 F2 C1 H4 109.771
F2 C1 H5 109.771 Cl3 C1 H4 107.426
Cl3 C1 H5 107.426 H4 C1 H5 111.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.100      
2 F -0.258      
3 Cl -0.060      
4 H 0.209      
5 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.816 1.745 0.000 1.926
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.632 -1.396 0.000
y -1.396 -22.274 0.000
z 0.000 0.000 -23.063
Traceless
 xyz
x -2.963 -1.396 0.000
y -1.396 2.073 0.000
z 0.000 0.000 0.891
Polar
3z2-r21.781
x2-y2-3.357
xy-1.396
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.884 0.705 0.000
y 0.705 3.994 0.000
z 0.000 0.000 2.489


<r2> (average value of r2) Å2
<r2> 65.786
(<r2>)1/2 8.111