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 CH2FCH2Cl (Ethane, 1-chloro-2-fluoro-)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-637.086694
Energy at 298.15K-637.091745
HF Energy-637.086694
Nuclear repulsion energy158.171858
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 HF/Def2TZVPP
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' 3248 2944 23.22      
2 A' 3220 2919 20.80      
3 A' 1647 1493 1.68      
4 A' 1623 1471 7.72      
5 A' 1553 1408 5.18      
6 A' 1400 1269 14.69      
7 A' 1167 1058 153.42      
8 A' 1138 1031 10.48      
9 A' 830 752 65.45      
10 A' 412 374 3.04      
11 A' 266 241 12.55      
12 A" 3312 3002 15.14      
13 A" 3269 2963 16.83      
14 A" 1414 1282 0.15      
15 A" 1331 1206 2.99      
16 A" 1153 1045 1.98      
17 A" 853 773 0.30      
18 A" 140 127 11.52      

Unscaled Zero Point Vibrational Energy (zpe) 13987.7 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 12678.4 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 HF/Def2TZVPP
ABC
1.01991 0.08067 0.07689

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.608 0.000
C2 0.991 -0.525 0.000
Cl3 -1.658 -0.044 0.000
F4 2.248 0.010 0.000
H5 0.090 1.237 0.872
H6 0.090 1.237 -0.872
H7 0.913 -1.159 0.873
H8 0.913 -1.159 -0.873

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6 H7 H8
C11.50541.78142.32621.07911.07912.17182.1718
C21.50542.69261.36592.16272.16271.08151.0815
Cl31.78142.69263.90632.33592.33592.93522.9352
F42.32621.36593.90632.63112.63111.97731.9773
H51.07912.16272.33592.63111.74432.53303.0760
H61.07912.16272.33592.63111.74433.07602.5330
H72.17181.08152.93521.97732.53303.07601.7460
H82.17181.08152.93521.97733.07602.53301.7460

picture of Ethane, 1-chloro-2-fluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 108.125 C1 C2 H7 113.163
C1 C2 H8 113.163 C2 C1 Cl3 109.725
C2 C1 H5 112.564 C2 C1 H6 112.564
Cl3 C1 H5 106.916 Cl3 C1 H6 106.916
F4 C2 H7 107.214 F4 C2 H8 107.214
H5 C1 H6 107.847 H7 C2 H8 107.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.007      
2 C 0.215      
3 Cl -0.179      
4 F -0.302      
5 H 0.081      
6 H 0.081      
7 H 0.049      
8 H 0.049      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.112 0.063 0.000 0.129
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.421 -0.775 0.000
y -0.775 -28.860 0.000
z 0.000 0.000 -29.483
Traceless
 xyz
x -9.250 -0.775 0.000
y -0.775 5.093 0.000
z 0.000 0.000 4.158
Polar
3z2-r28.315
x2-y2-9.562
xy-0.775
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.467 0.335 0.000
y 0.335 4.794 0.000
z 0.000 0.000 4.427


<r2> (average value of r2) Å2
<r2> 132.582
(<r2>)1/2 11.514