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

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-737.662739
Energy at 298.15K-737.666940
HF Energy-737.662739
Nuclear repulsion energy239.500900
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' 3191 3056 1.87      
2 A' 3096 2965 0.74      
3 A' 1522 1457 3.84      
4 A' 1474 1412 35.39      
5 A' 1257 1204 132.45      
6 A' 1167 1118 169.84      
7 A' 891 853 123.97      
8 A' 636 610 80.85      
9 A' 505 484 19.66      
10 A' 403 386 2.80      
11 A' 292 280 1.23      
12 A" 3212 3076 1.11      
13 A" 1520 1455 6.16      
14 A" 1245 1193 149.31      
15 A" 990 949 55.14      
16 A" 413 395 0.07      
17 A" 315 302 1.17      
18 A" 257 246 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11192.7 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 10719.3 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
0.16786 0.10100 0.09970

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 -0.374 0.016 0.000
C2 -0.836 1.437 0.000
Cl3 1.482 -0.122 0.000
F4 -0.836 -0.667 1.118
F5 -0.836 -0.667 -1.118
H6 -1.930 1.448 0.000
H7 -0.472 1.952 0.890
H8 -0.472 1.952 -0.890

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 F5 H6 H7 H8
C11.49471.86041.38971.38972.11502.13282.1328
C21.49472.79332.38312.38311.09371.09051.0905
Cl31.86042.79332.63072.63073.75542.98442.9844
F41.38972.38312.63072.23702.63102.65383.3202
F51.38972.38312.63072.23702.63103.32022.6538
H62.11501.09373.75542.63102.63101.78061.7806
H72.13281.09052.98442.65383.32021.78061.7798
H82.13281.09052.98443.32022.65381.78061.7798

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 108.605 C1 C2 H7 110.194
C1 C2 H8 110.194 C2 C1 Cl3 112.265
C2 C1 F4 111.367 C2 C1 F5 111.367
Cl3 C1 F4 107.191 Cl3 C1 F5 107.191
F4 C1 F5 107.185 H6 C2 H7 109.224
H6 C2 H8 109.224 H7 C2 H8 109.378
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 0.330      
2 C -0.497      
3 Cl 0.058      
4 F -0.271      
5 F -0.271      
6 H 0.219      
7 H 0.216      
8 H 0.216      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.012 2.602 0.000 2.792
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.126 -2.122 0.000
y -2.122 -33.182 0.000
z 0.000 0.000 -36.706
Traceless
 xyz
x -0.182 -2.122 0.000
y -2.122 2.734 0.000
z 0.000 0.000 -2.552
Polar
3z2-r2-5.104
x2-y2-1.944
xy-2.122
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.123 -0.336 0.000
y -0.336 3.760 0.000
z 0.000 0.000 3.755


<r2> (average value of r2) Å2
<r2> 135.444
(<r2>)1/2 11.638