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 CH3CF2Cl (1-Chloro-1,1-Difluoroethane)

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-734.162882
Energy at 298.15K-734.167151
HF Energy-734.162882
Nuclear repulsion energy243.213073
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 M06-2X/3-21G*
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' 3159 2993 0.26      
2 A' 3080 2917 0.43      
3 A' 1540 1459 1.59      
4 A' 1481 1403 36.09      
5 A' 1278 1211 146.07      
6 A' 1176 1114 159.20      
7 A' 930 881 102.80      
8 A' 655 620 75.81      
9 A' 520 492 20.29      
10 A' 419 397 1.17      
11 A' 306 290 0.74      
12 A" 3185 3017 0.00      
13 A" 1545 1464 3.83      
14 A" 1316 1247 143.05      
15 A" 1043 988 18.95      
16 A" 400 379 0.58      
17 A" 323 306 1.04      
18 A" 250 237 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11302.8 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 10706.0 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 M06-2X/3-21G*
ABC
0.16994 0.10533 0.10399

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.351 -0.002 0.000
C2 -0.816 1.428 0.000
Cl3 1.440 -0.112 0.000
F4 -0.816 -0.664 1.112
F5 -0.816 -0.664 -1.112
H6 -1.908 1.433 0.000
H7 -0.448 1.933 0.893
H8 -0.448 1.933 -0.893

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 F5 H6 H7 H8
C11.50361.79431.37501.37502.11812.13272.1327
C21.50362.73152.36912.36911.09261.08931.0893
Cl31.79432.73152.57492.57493.68802.92292.9229
F41.37502.36912.57492.22342.61332.63173.3008
F51.37502.36912.57492.22342.61333.30082.6317
H62.11811.09263.68802.61332.61331.78261.7826
H72.13271.08932.92292.63173.30081.78261.7853
H82.13271.08932.92293.30082.63171.78261.7853

picture of 1-Chloro-1,1-Difluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 108.304 C1 C2 H7 109.645
C1 C2 H8 109.645 C2 C1 Cl3 111.538
C2 C1 F4 110.695 C2 C1 F5 110.695
Cl3 C1 F4 107.940 Cl3 C1 F5 107.940
F4 C1 F5 107.895 H6 C2 H7 109.575
H6 C2 H8 109.575 H7 C2 H8 110.070
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.465      
2 C -0.627      
3 Cl -0.003      
4 F -0.288      
5 F -0.288      
6 H 0.251      
7 H 0.245      
8 H 0.245      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.741 2.259 0.000 2.377
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.670 -1.838 0.000
y -1.838 -33.583 0.000
z 0.000 0.000 -36.576
Traceless
 xyz
x 0.410 -1.838 0.000
y -1.838 2.040 0.000
z 0.000 0.000 -2.450
Polar
3z2-r2-4.900
x2-y2-1.087
xy-1.838
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.555 -0.321 0.000
y -0.321 3.633 0.000
z 0.000 0.000 3.623


<r2> (average value of r2) Å2
<r2> 131.589
(<r2>)1/2 11.471