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: mPW1PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-153.187504
Energy at 298.15K-153.190173
HF Energy-153.187504
Nuclear repulsion energy63.853300
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 mPW1PW91/cc-pVTZ
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' 3282 3148 2.21      
2 A' 3164 3035 2.03      
3 A' 2963 2842 86.42      
4 A' 1586 1521 39.08      
5 A' 1475 1415 13.52      
6 A' 1404 1347 10.92      
7 A' 1167 1119 21.36      
8 A' 980 940 2.77      
9 A' 504 484 12.77      
10 A" 985 945 0.59      
11 A" 756 726 35.18      
12 A" 445 427 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 9356.0 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 8974.3 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 mPW1PW91/cc-pVTZ
ABC
2.25961 0.38544 0.32927

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.427 0.000
H2 0.294 1.491 0.000
C3 1.051 -0.528 0.000
O4 -1.186 0.115 0.000
H5 2.087 -0.221 0.000
H6 0.805 -1.581 0.000

Atom - Atom Distances (Å)
  C1 H2 C3 O4 H5 H6
C11.10391.41951.22652.18582.1629
H21.10392.15572.02092.47943.1138
C31.41952.15572.32731.08121.0813
O41.22652.02092.32733.29092.6153
H52.18582.47941.08123.29091.8691
H62.16293.11381.08132.61531.8691

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 121.275 C1 C3 H6 119.118
H2 C1 C3 116.807 H2 C1 O4 120.176
C3 C1 O4 123.017 H5 C3 H6 119.607
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.122      
2 H 0.047      
3 C -0.157      
4 O -0.258      
5 H 0.120      
6 H 0.127      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.869 -0.012 0.000 2.869
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.170 -0.110 0.000
y -0.110 -16.199 0.000
z 0.000 0.000 -18.201
Traceless
 xyz
x -1.971 -0.110 0.000
y -0.110 2.487 0.000
z 0.000 0.000 -0.516
Polar
3z2-r2-1.032
x2-y2-2.972
xy-0.110
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.248 -0.361 0.000
y -0.361 4.113 0.000
z 0.000 0.000 2.413


<r2> (average value of r2) Å2
<r2> 41.764
(<r2>)1/2 6.463