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: PBE1PBE/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 PBE1PBE/cc-pVDZ
 hartrees
Energy at 0K-637.092949
Energy at 298.15K-637.095042
HF Energy-637.092949
Nuclear repulsion energy140.187709
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 PBE1PBE/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' 3256 3131 7.72      
2 A' 3242 3118 5.79      
3 A' 1747 1680 27.25      
4 A' 1308 1257 0.17      
5 A' 1215 1169 3.27      
6 A' 1182 1137 184.76      
7 A' 896 862 54.04      
8 A' 457 439 1.67      
9 A' 269 259 5.73      
10 A" 932 896 50.32      
11 A" 813 781 17.17      
12 A" 278 268 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 7798.1 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 7497.9 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 PBE1PBE/cc-pVDZ
ABC
1.81180 0.08205 0.07849

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.478 0.000
C2 1.023 -0.369 0.000
Cl3 -1.632 -0.085 0.000
F4 2.281 0.077 0.000
H5 0.130 1.560 0.000
H6 0.937 -1.458 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.32861.72592.31611.09032.1506
C21.32862.67041.33452.12641.0920
Cl31.72592.67043.91622.41042.9127
F42.31611.33453.91622.61302.0401
H51.09032.12642.41042.61303.1242
H62.15061.09202.91272.04013.1242

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 120.852 C1 C2 H6 125.076
C2 C1 Cl3 121.364 C2 C1 H5 122.766
Cl3 C1 H5 115.870 F4 C2 H6 114.073
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.150      
2 C 0.234      
3 Cl -0.056      
4 F -0.165      
5 H 0.087      
6 H 0.050      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.211 -0.158 0.000 0.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.082 -0.818 0.000
y -0.818 -26.087 0.000
z 0.000 0.000 -30.181
Traceless
 xyz
x -3.948 -0.818 0.000
y -0.818 5.044 0.000
z 0.000 0.000 -1.097
Polar
3z2-r2-2.193
x2-y2-5.995
xy-0.818
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.991 -0.337 0.000
y -0.337 4.246 0.000
z 0.000 0.000 2.267


<r2> (average value of r2) Å2
<r2> 124.590
(<r2>)1/2 11.162