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: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-152.364400
Energy at 298.15K-152.367182
HF Energy-152.364400
Nuclear repulsion energy64.111874
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 HF/Def2TZVPP
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' 3402 3084 3.97      
2 A' 3292 2984 4.52      
3 A' 3183 2885 58.14      
4 A' 1593 1444 12.72      
5 A' 1545 1400 8.97      
6 A' 1410 1278 12.41      
7 A' 1199 1087 15.02      
8 A' 1048 950 4.41      
9 A' 539 489 15.31      
10 A" 1026 930 0.39      
11 A" 791 717 46.01      
12 A" 517 469 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 9772.4 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 8857.7 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 HF/Def2TZVPP
ABC
2.26637 0.38918 0.33214

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.444 0.000
H2 0.085 1.513 0.000
C3 1.082 -0.390 0.000
O4 -1.199 -0.049 0.000
H5 2.076 0.008 0.000
H6 0.942 -1.452 0.000

Atom - Atom Distances (Å)
  C1 H2 C3 O4 H5 H6
C11.07201.36641.29672.12182.1175
H21.07202.14852.02192.49613.0863
C31.36642.14852.30661.07141.0708
O41.29672.02192.30663.27622.5603
H52.12182.49611.07143.27621.8488
H62.11753.08631.07082.56031.8488

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 120.525 C1 C3 H6 120.159
H2 C1 C3 123.102 H2 C1 O4 116.896
C3 C1 O4 120.002 H5 C3 H6 119.317
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.227      
2 H 0.049      
3 C -0.104      
4 O -0.354      
5 H 0.089      
6 H 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.773 0.170 0.000 2.778
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.443 -0.101 0.000
y -0.101 -16.176 0.000
z 0.000 0.000 -18.443
Traceless
 xyz
x -2.133 -0.101 0.000
y -0.101 2.767 0.000
z 0.000 0.000 -0.633
Polar
3z2-r2-1.267
x2-y2-3.267
xy-0.101
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.300 -0.231 0.000
y -0.231 3.757 0.000
z 0.000 0.000 2.614


<r2> (average value of r2) Å2
<r2> 41.582
(<r2>)1/2 6.448