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: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-599.333045
Energy at 298.15K-599.335709
Nuclear repulsion energy101.286104
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 B1B95/6-31G**
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' 3102 2962 28.19      
2 A' 1519 1450 0.68      
3 A' 1390 1327 50.71      
4 A' 1149 1097 163.61      
5 A' 752 718 100.58      
6 A' 382 365 1.50      
7 A" 3181 3037 16.44      
8 A" 1263 1206 2.32      
9 A" 1020 974 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 6878.3 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 6567.4 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 B1B95/6-31G**
ABC
1.41158 0.18910 0.17237

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.807 0.000
F2 1.351 0.763 0.000
Cl3 -0.674 -0.842 0.000
H4 -0.354 1.305 0.903
H5 -0.354 1.305 -0.903

Atom - Atom Distances (Å)
  C1 F2 Cl3 H4 H5
C11.35201.78161.09021.0902
F21.35202.58412.00432.0043
Cl31.78162.58412.35122.3512
H41.09022.00432.35121.8058
H51.09022.00432.35121.8058

picture of fluorochloromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Cl3 110.356 F2 C1 H4 109.842
F2 C1 H5 109.842 Cl3 C1 H4 107.459
Cl3 C1 H5 107.459 H4 C1 H5 111.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.002      
2 F -0.266      
3 Cl -0.062      
4 H 0.165      
5 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.824 1.721 0.000 1.908
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.583 -1.380 0.000
y -1.380 -22.225 0.000
z 0.000 0.000 -23.018
Traceless
 xyz
x -2.961 -1.380 0.000
y -1.380 2.075 0.000
z 0.000 0.000 0.886
Polar
3z2-r21.773
x2-y2-3.358
xy-1.380
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.893 0.693 0.000
y 0.693 3.999 0.000
z 0.000 0.000 2.509


<r2> (average value of r2) Å2
<r2> 65.391
(<r2>)1/2 8.086