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: B2PLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-31+G**
 hartrees
Energy at 0K-637.104691
Energy at 298.15K-637.106753
HF Energy-636.914850
Nuclear repulsion energy139.533039
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 B2PLYP/6-31+G**
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' 3287 3131 0.91      
2 A' 3282 3125 14.06      
3 A' 1711 1630 21.80      
4 A' 1333 1270 0.23      
5 A' 1263 1203 4.60      
6 A' 1132 1079 191.13      
7 A' 887 845 60.54      
8 A' 449 428 1.60      
9 A' 273 260 6.58      
10 A" 921 877 71.13      
11 A" 801 763 7.08      
12 A" 270 258 1.38      

Unscaled Zero Point Vibrational Energy (zpe) 7804.7 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 7433.2 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 B2PLYP/6-31+G**
ABC
1.80583 0.08126 0.07776

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.474 0.000
C2 1.023 -0.376 0.000
Cl3 -1.639 -0.091 0.000
F4 2.293 0.096 0.000
H5 0.127 1.547 0.000
H6 0.967 -1.455 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6
C11.32971.73382.32431.08012.1579
C21.32972.67711.35542.12101.0807
Cl31.73382.67713.93702.40832.9417
F42.32431.35543.93702.60772.0406
H51.08012.12102.40832.60773.1171
H62.15791.08072.94172.04063.1171

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 119.914 C1 C2 H6 126.777
C2 C1 Cl3 121.257 C2 C1 H5 122.995
Cl3 C1 H5 115.748 F4 C2 H6 113.309
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.203      
2 C 0.126      
3 Cl 0.019      
4 F -0.304      
5 H 0.196      
6 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.118 -0.212 0.000 0.243
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.160 -1.151 0.000
y -1.151 -26.614 0.000
z 0.000 0.000 -30.952
Traceless
 xyz
x -5.378 -1.151 0.000
y -1.151 5.943 0.000
z 0.000 0.000 -0.565
Polar
3z2-r2-1.130
x2-y2-7.547
xy-1.151
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.623 -0.378 0.000
y -0.378 4.738 0.000
z 0.000 0.000 3.449


<r2> (average value of r2) Å2
<r2> 126.265
(<r2>)1/2 11.237