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 CHFCHCl ((E)-1-chloro-2-fluoroethene)

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-637.425636
Energy at 298.15K-637.427725
HF Energy-637.425636
Nuclear repulsion energy140.016703
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 mPW1PW91/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3264 3127 4.23      
2 A' 3257 3121 11.50      
3 A' 1731 1659 25.12      
4 A' 1315 1260 0.49      
5 A' 1231 1179 1.07      
6 A' 1149 1101 198.90      
7 A' 892 855 55.68      
8 A' 453 434 1.51      
9 A' 271 260 5.81      
10 A" 918 880 59.78      
11 A" 821 787 7.79      
12 A" 274 263 1.16      

Unscaled Zero Point Vibrational Energy (zpe) 7787.5 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 7462.8 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 mPW1PW91/aug-cc-pVDZ
ABC
1.80320 0.08193 0.07837

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.478 0.000
C2 1.021 -0.370 0.000
Cl3 -1.632 -0.091 0.000
F4 2.284 0.088 0.000
H5 0.119 1.558 0.000
H6 0.950 -1.455 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.32711.72872.31691.08692.1539
C21.32712.66781.34362.12861.0876
Cl31.72872.66783.92032.40602.9203
F42.31691.34363.92032.61642.0401
H51.08692.12862.40602.61643.1258
H62.15391.08762.92032.04013.1258

picture of (E)-1-chloro-2-fluoroethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 120.344 C1 C2 H6 125.970
C2 C1 Cl3 121.064 C2 C1 H5 123.407
Cl3 C1 H5 115.529 F4 C2 H6 113.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.049      
2 C 1.186      
3 Cl -0.172      
4 F -0.435      
5 H -0.330      
6 H -0.200      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.035 -0.129 0.000 0.133
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.158 -0.989 0.000
y -0.989 -26.298 0.000
z 0.000 0.000 -30.646
Traceless
 xyz
x -4.686 -0.989 0.000
y -0.989 5.604 0.000
z 0.000 0.000 -0.919
Polar
3z2-r2-1.837
x2-y2-6.860
xy-0.989
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.230 -0.350 0.000
y -0.350 5.415 0.000
z 0.000 0.000 4.282


<r2> (average value of r2) Å2
<r2> 125.116
(<r2>)1/2 11.186