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: B1B95/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at B1B95/STO-3G
 hartrees
Energy at 0K-151.108096
Energy at 298.15K-151.110567
HF Energy-151.108096
Nuclear repulsion energy61.987659
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 B1B95/STO-3G
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' 3573 3155 0.77      
2 A' 3399 3001 13.99      
3 A' 3264 2882 13.56      
4 A' 1587 1401 2.43      
5 A' 1496 1321 2.12      
6 A' 1340 1183 7.97      
7 A' 1093 965 4.89      
8 A' 1035 914 0.79      
9 A' 487 430 4.39      
10 A" 965 852 1.40      
11 A" 756 667 26.81      
12 A" 471 416 5.04      

Unscaled Zero Point Vibrational Energy (zpe) 9732.1 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 8593.5 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 B1B95/STO-3G
ABC
2.17976 0.36303 0.31120

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.429 0.000
H2 0.243 1.520 0.000
C3 1.105 -0.453 0.000
O4 -1.245 0.030 0.000
H5 2.135 -0.077 0.000
H6 0.958 -1.539 0.000

Atom - Atom Distances (Å)
  C1 H2 C3 O4 H5 H6
C11.11771.41321.30782.19372.1891
H21.11772.15242.10632.47543.1418
C31.41322.15242.39881.09641.0967
O41.30782.10632.39883.38162.7048
H52.19372.47541.09643.38161.8771
H62.18913.14181.09672.70481.8771

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 121.371 C1 C3 H6 120.910
H2 C1 C3 116.029 H2 C1 O4 120.343
C3 C1 O4 123.628 H5 C3 H6 117.719
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.025      
2 H 0.066      
3 C -0.132      
4 O -0.145      
5 H 0.091      
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
  1.715 0.045 0.000 1.716
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.974 -0.175 0.000
y -0.175 -15.223 0.000
z 0.000 0.000 -16.310
Traceless
 xyz
x -1.208 -0.175 0.000
y -0.175 1.419 0.000
z 0.000 0.000 -0.211
Polar
3z2-r2-0.422
x2-y2-1.752
xy-0.175
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.089 -0.280 0.000
y -0.280 1.997 0.000
z 0.000 0.000 0.618


<r2> (average value of r2) Å2
<r2> 42.384
(<r2>)1/2 6.510