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 C2H2ClF (1-chloro-1-fluoroethylene)

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-637.430149
Energy at 298.15K-637.432451
HF Energy-637.430149
Nuclear repulsion energy149.164550
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
4/u)
Dep P Dep U
1 A' 3332 3193 0.45      
2 A' 3216 3082 5.01      
3 A' 1742 1670 165.37      
4 A' 1391 1333 1.42      
5 A' 1196 1146 193.61      
6 A' 953 914 40.24      
7 A' 708 679 43.98      
8 A' 432 414 1.36      
9 A' 372 357 0.02      
10 A" 874 837 59.42      
11 A" 720 690 0.05      
12 A" 534 512 2.27      

Unscaled Zero Point Vibrational Energy (zpe) 7735.0 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 7412.4 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 mPW1PW91/aug-cc-pVDZ
ABC
0.35491 0.16916 0.11456

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 0.454 0.000
C2 -0.998 1.323 0.000
F3 1.282 0.824 0.000
Cl4 -0.161 -1.261 0.000
H5 -0.782 2.388 0.000
H6 -2.025 0.976 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 H5 H6
C11.32421.33391.72232.08682.0912
C21.32422.33422.71691.08641.0839
F31.33392.33422.53512.59003.3100
Cl41.72232.71692.53513.70192.9116
H52.08681.08642.59003.70191.8813
H62.09121.08393.31002.91161.8813

picture of 1-chloro-1-fluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 119.593 C1 C2 H6 120.215
C2 C1 F3 122.833 C2 C1 Cl4 125.701
F3 C1 Cl4 111.466 H5 C2 H6 120.193
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 0.428      
2 C 0.692      
3 F -0.458      
4 Cl -0.103      
5 H -0.295      
6 H -0.264      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.188 0.715 0.000 1.386
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.146 -1.385 0.000
y -1.385 -27.037 0.000
z 0.000 0.000 -30.684
Traceless
 xyz
x -0.285 -1.385 0.000
y -1.385 2.878 0.000
z 0.000 0.000 -2.593
Polar
3z2-r2-5.186
x2-y2-2.108
xy-1.385
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.013 -0.867 0.000
y -0.867 7.737 0.000
z 0.000 0.000 4.369


<r2> (average value of r2) Å2
<r2> 95.543
(<r2>)1/2 9.775