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 CH2CHO (Vinyloxy radical)

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-152.995764
Energy at 298.15K-152.998326
HF Energy-152.995764
Nuclear repulsion energy62.962092
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 PBEPBE/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' 3199 3181 3.43      
2 A' 3071 3053 2.57      
3 A' 2825 2808 118.18      
4 A' 1549 1540 48.49      
5 A' 1405 1397 11.62      
6 A' 1335 1328 7.95      
7 A' 1132 1125 13.29      
8 A' 942 936 3.88      
9 A' 483 480 10.96      
10 A" 938 932 1.35      
11 A" 705 701 25.92      
12 A" 406 403 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 8993.6 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 8941.5 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 PBEPBE/cc-pVDZ
ABC
2.19752 0.37535 0.32059

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.430 0.000
H2 0.314 1.513 0.000
C3 1.064 -0.531 0.000
O4 -1.204 0.114 0.000
H5 2.120 -0.218 0.000
H6 0.812 -1.603 0.000

Atom - Atom Distances (Å)
  C1 H2 C3 O4 H5 H6
C11.12791.43391.24462.21692.1887
H21.12792.17752.06422.50193.1555
C31.43392.17752.35831.10121.1011
O41.24462.06422.35833.34062.6479
H52.21692.50191.10123.34061.9051
H62.18873.15551.10112.64791.9051

picture of Vinyloxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 121.416 C1 C3 H6 118.814
H2 C1 C3 115.912 H2 C1 O4 120.848
C3 C1 O4 123.239 H5 C3 H6 119.770
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.081      
2 H -0.011      
3 C -0.004      
4 O -0.178      
5 H 0.053      
6 H 0.058      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.522 -0.102 0.000 2.524
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.871 -0.077 0.000
y -0.077 -16.509 0.000
z 0.000 0.000 -18.070
Traceless
 xyz
x -1.582 -0.077 0.000
y -0.077 1.961 0.000
z 0.000 0.000 -0.380
Polar
3z2-r2-0.759
x2-y2-2.362
xy-0.077
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.088 -0.371 0.000
y -0.371 4.138 0.000
z 0.000 0.000 1.808


<r2> (average value of r2) Å2
<r2> 42.583
(<r2>)1/2 6.526