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: B3PW91/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-737.768531
Energy at 298.15K-737.772816
HF Energy-737.768531
Nuclear repulsion energy245.604394
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(2df,p)
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' 3167 3045 3.77      
2 A' 3074 2955 2.17      
3 A' 1472 1415 0.23      
4 A' 1409 1355 41.19      
5 A' 1255 1207 123.77      
6 A' 1125 1082 176.50      
7 A' 911 876 92.54      
8 A' 675 649 62.88      
9 A' 547 526 14.63      
10 A' 426 410 3.64      
11 A' 298 287 0.99      
12 A" 3187 3064 1.90      
13 A" 1471 1415 1.20      
14 A" 1240 1192 166.39      
15 A" 987 949 30.23      
16 A" 425 408 0.00      
17 A" 328 316 0.60      
18 A" 239 230 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11117.8 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 10688.7 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(2df,p)
ABC
0.17542 0.10744 0.10436

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.361 -0.003 0.000
C2 -0.812 1.435 0.000
Cl3 1.438 -0.128 0.000
F4 -0.812 -0.652 1.078
F5 -0.812 -0.652 -1.078
H6 -1.906 1.452 0.000
H7 -0.439 1.941 0.891
H8 -0.439 1.941 -0.891

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 F5 H6 H7 H8
C11.50641.80371.33681.33682.12122.13912.1391
C21.50642.73972.34912.34911.09351.09041.0904
Cl31.80372.73972.54922.54923.69802.93182.9318
F41.33682.34912.54922.15552.60482.62643.2770
F51.33682.34912.54922.15552.60483.27702.6264
H62.12121.09353.69802.60482.60481.78461.7846
H72.13911.09042.93182.62643.27701.78461.7818
H82.13911.09042.93183.27702.62641.78461.7818

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 108.299 C1 C2 H7 109.881
C1 C2 H8 109.881 C2 C1 Cl3 111.411
C2 C1 F4 111.285 C2 C1 F5 111.285
Cl3 C1 F4 107.601 Cl3 C1 F5 107.601
F4 C1 F5 107.458 H6 C2 H7 109.593
H6 C2 H8 109.593 H7 C2 H8 109.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.319      
2 C -0.516      
3 Cl -0.172      
4 F -0.087      
5 F -0.087      
6 H 0.177      
7 H 0.183      
8 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.033 1.849 0.000 2.118
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.195 -1.466 0.000
y -1.466 -32.876 0.000
z 0.000 0.000 -35.271
Traceless
 xyz
x -0.122 -1.466 0.000
y -1.466 1.857 0.000
z 0.000 0.000 -1.735
Polar
3z2-r2-3.471
x2-y2-1.319
xy-1.466
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.503 -0.403 0.000
y -0.403 4.899 0.000
z 0.000 0.000 4.618


<r2> (average value of r2) Å2
<r2> 129.510
(<r2>)1/2 11.380