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: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-152.352725
Energy at 298.15K-152.355280
HF Energy-152.352725
Nuclear repulsion energy63.461952
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 LSDA/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' 3207 3159 0.75      
2 A' 3085 3038 1.04      
3 A' 2882 2839 86.87      
4 A' 1575 1552 65.98      
5 A' 1422 1401 15.51      
6 A' 1337 1316 10.33      
7 A' 1168 1150 9.93      
8 A' 953 939 3.80      
9 A' 488 481 11.14      
10 A" 940 926 2.28      
11 A" 715 705 45.22      
12 A" 388 382 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 9079.9 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 8943.7 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 LSDA/6-31+G**
ABC
2.20586 0.38400 0.32706

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.429 0.000
H2 0.273 1.514 0.000
C3 1.059 -0.507 0.000
O4 -1.194 0.089 0.000
H5 2.106 -0.184 0.000
H6 0.820 -1.577 0.000

Atom - Atom Distances (Å)
  C1 H2 C3 O4 H5 H6
C11.11841.41391.24182.19382.1673
H21.11842.16892.04512.49913.1389
C31.41392.16892.33111.09581.0960
O41.24182.04512.33113.31182.6139
H52.19382.49911.09583.31181.8959
H62.16733.13891.09602.61391.8959

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 121.361 C1 C3 H6 118.876
H2 C1 C3 117.371 H2 C1 O4 120.014
C3 C1 O4 122.615 H5 C3 H6 119.764
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.030      
2 H 0.146      
3 C -0.210      
4 O -0.351      
5 H 0.182      
6 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.100 0.008 0.000 3.100
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.688 -0.258 0.000
y -0.258 -16.483 0.000
z 0.000 0.000 -18.769
Traceless
 xyz
x -2.062 -0.258 0.000
y -0.258 2.745 0.000
z 0.000 0.000 -0.683
Polar
3z2-r2-1.366
x2-y2-3.205
xy-0.258
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.812 -0.392 0.000
y -0.392 4.418 0.000
z 0.000 0.000 2.600


<r2> (average value of r2) Å2
<r2> 42.289
(<r2>)1/2 6.503