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: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-76.420998
Energy at 298.15K-76.425188
HF Energy-76.420998
Nuclear repulsion energy105.847037
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 B3LYP/CEP-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' 3162 3054 12.51      
2 A' 3080 2974 6.00      
3 A' 1479 1428 0.59      
4 A' 1419 1370 34.09      
5 A' 1228 1186 137.90      
6 A' 1129 1090 196.30      
7 A' 893 862 119.82      
8 A' 660 637 60.03      
9 A' 527 509 15.97      
10 A' 417 403 2.66      
11 A' 290 280 1.15      
12 A" 3180 3071 11.84      
13 A" 1478 1427 1.99      
14 A" 1204 1163 198.42      
15 A" 967 934 56.40      
16 A" 416 402 0.02      
17 A" 321 310 0.63      
18 A" 240 232 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11044.5 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 10665.7 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 B3LYP/CEP-31G*
ABC
0.16999 0.10406 0.10112

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.358 0.004 0.000
C2 -0.827 1.460 0.000
Cl3 1.460 -0.135 0.000
F4 -0.827 -0.661 1.095
F5 -0.827 -0.661 -1.095
H6 -1.930 1.465 0.000
H7 -0.452 1.969 0.900
H8 -0.452 1.969 -0.900

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 F5 H6 H7 H8
C11.52971.82311.36491.36492.14582.16342.1634
C21.52972.78812.38762.38761.10281.10011.1001
Cl31.82312.78812.58982.58983.74822.98202.9820
F41.36492.38762.58982.19092.63392.66433.3231
F51.36492.38762.58982.19092.63393.32312.6643
H62.14581.10283.74822.63392.63391.80241.8024
H72.16341.10012.98202.66433.32311.80241.8007
H82.16341.10012.98203.32312.66431.80241.8007

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 108.107 C1 C2 H7 109.623
C1 C2 H8 109.623 C2 C1 Cl3 112.233
C2 C1 F4 111.022 C2 C1 F5 111.022
Cl3 C1 F4 107.788 Cl3 C1 F5 107.788
F4 C1 F5 106.751 H6 C2 H7 109.808
H6 C2 H8 109.808 H7 C2 H8 109.847
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.114      
2 C -0.337      
3 Cl -0.096      
4 F -0.109      
5 F -0.109      
6 H 0.178      
7 H 0.180      
8 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.761 2.306 0.000 2.428
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.868 -1.828 0.000
y -1.828 -32.756 0.000
z 0.000 0.000 -35.525
Traceless
 xyz
x 0.272 -1.828 0.000
y -1.828 1.941 0.000
z 0.000 0.000 -2.213
Polar
3z2-r2-4.426
x2-y2-1.113
xy-1.828
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.354 -0.339 0.000
y -0.339 4.400 0.000
z 0.000 0.000 3.974


<r2> (average value of r2) Å2
<r2> 96.238
(<r2>)1/2 9.810