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: PBEPBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/aug-cc-pVTZ
 hartrees
Energy at 0K-599.086221
Energy at 298.15K-599.088827
Nuclear repulsion energy100.331619
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/aug-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 A' 3005 2985 19.83      
2 A' 1439 1430 0.44      
3 A' 1311 1302 22.74      
4 A' 1031 1025 167.64      
5 A' 714 710 101.33      
6 A' 367 365 0.84      
7 A" 3079 3059 5.60      
8 A" 1202 1194 1.87      
9 A" 970 964 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 6558.5 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 6515.9 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/aug-cc-pVTZ
ABC
1.38826 0.18539 0.16907

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.811 0.000
F2 1.373 0.763 0.000
Cl3 -0.687 -0.844 0.000
H4 -0.342 1.310 0.914
H5 -0.342 1.310 -0.914

Atom - Atom Distances (Å)
  C1 F2 Cl3 H4 H5
C11.37361.79211.09591.0959
F21.37362.61192.01862.0186
Cl31.79212.61192.36502.3650
H41.09592.01862.36501.8283
H51.09592.01862.36501.8283

picture of fluorochloromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Cl3 110.500 F2 C1 H4 109.139
F2 C1 H5 109.139 Cl3 C1 H4 107.493
Cl3 C1 H5 107.493 H4 C1 H5 113.057
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.008      
2 F -0.328      
3 Cl -0.154      
4 H 0.237      
5 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.905 1.519 0.000 1.768
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.663 -1.335 0.000
y -1.335 -22.649 0.000
z 0.000 0.000 -23.574
Traceless
 xyz
x -3.551 -1.335 0.000
y -1.335 2.470 0.000
z 0.000 0.000 1.082
Polar
3z2-r22.163
x2-y2-4.014
xy-1.335
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.746 0.657 0.000
y 0.657 5.422 0.000
z 0.000 0.000 4.093


<r2> (average value of r2) Å2
<r2> 66.778
(<r2>)1/2 8.172