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 CF3CH2F (1,1,1,2-tetrafluoroethane)

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-474.017582
Energy at 298.15K-474.021490
Nuclear repulsion energy268.218214
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 B3PW91/3-21G*
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' 3107 2981 10.55      
2 A' 1563 1499 3.94      
3 A' 1475 1415 2.39      
4 A' 1317 1264 172.81      
5 A' 1229 1179 200.28      
6 A' 1113 1068 35.85      
7 A' 829 795 11.55      
8 A' 630 605 27.96      
9 A' 522 501 15.11      
10 A' 392 376 1.14      
11 A' 197 189 3.80      
12 A" 3157 3028 15.53      
13 A" 1387 1331 104.38      
14 A" 1221 1171 66.67      
15 A" 1028 986 41.28      
16 A" 504 483 4.75      
17 A" 330 316 1.04      
18 A" 117 112 6.08      

Unscaled Zero Point Vibrational Energy (zpe) 10057.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9649.2 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 B3PW91/3-21G*
ABC
0.17060 0.09098 0.08973

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.362 0.186 0.000
C2 -1.142 0.258 0.000
F3 0.843 1.472 0.000
F4 0.843 -0.455 1.106
F5 0.843 -0.455 -1.106
F6 -1.686 -1.038 0.000
H7 -1.452 0.808 0.891
H8 -1.452 0.808 -0.891

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 H7 H8
C11.50601.37361.36561.36562.38642.11512.1151
C21.50602.32692.38142.38141.40591.09221.0922
F31.37362.32692.22212.22213.56382.54972.5497
F41.36562.38142.22212.21302.82162.62833.2941
F51.36562.38142.22212.21302.82163.29412.6283
F62.38641.40593.56382.82162.82162.06372.0637
H72.11511.09222.54972.62833.29412.06371.7818
H82.11511.09222.54973.29412.62832.06371.7818

picture of 1,1,1,2-tetrafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 110.031 C1 C2 H7 107.925
C1 C2 H8 107.925 C2 C1 F3 107.723
C2 C1 F4 111.957 C2 C1 F5 111.957
F3 C1 F4 108.427 F3 C1 F5 108.427
F4 C1 F5 108.239 F6 C2 H7 110.779
F6 C2 H8 110.779 H7 C2 H8 109.311
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.795      
2 C -0.180      
3 F -0.282      
4 F -0.273      
5 F -0.273      
6 F -0.280      
7 H 0.247      
8 H 0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.222 1.600 0.000 2.013
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.989 -3.172 0.000
y -3.172 -32.807 0.000
z 0.000 0.000 -31.235
Traceless
 xyz
x 0.033 -3.172 0.000
y -3.172 -1.195 0.000
z 0.000 0.000 1.163
Polar
3z2-r22.326
x2-y20.819
xy-3.172
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.733 0.024 0.000
y 0.024 3.075 0.000
z 0.000 0.000 2.936


<r2> (average value of r2) Å2
<r2> 136.068
(<r2>)1/2 11.665