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 CH2NOH (formaldoxime)

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-169.779676
Energy at 298.15K-169.783626
HF Energy-169.779676
Nuclear repulsion energy 
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 mPW1PW91/6-31+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' 3887 3700 106.46      
2 A' 3283 3125 3.11      
3 A' 3148 2997 5.05      
4 A' 1749 1665 7.71      
5 A' 1460 1389 15.87      
6 A' 1365 1299 93.80      
7 A' 1193 1135 13.77      
8 A' 974 927 130.02      
9 A' 538 513 6.63      
10 A" 986 938 44.35      
11 A" 807 768 7.52      
12 A" 441 420 154.18      

Unscaled Zero Point Vibrational Energy (zpe) 9915.2 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 9437.3 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 mPW1PW91/6-31+G**
ABC
2.34145 0.39817 0.34030

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.136 -0.036 0.000
N2 0.000 0.531 0.000
O3 -1.031 -0.393 0.000
H4 1.255 -1.119 0.000
H5 2.001 0.616 0.000
H6 -1.823 0.154 0.000

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.27002.19691.08931.08342.9658
N21.27001.38462.07292.00291.8617
O32.19691.38462.39893.19610.9628
H41.08932.07292.39891.88903.3313
H51.08342.00293.19611.88903.8521
H62.96581.86170.96283.33133.8521

picture of formaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 111.633 N2 C1 H4 122.770
N2 C1 H5 116.439 N2 O3 H6 103.488
H4 C1 H5 120.791
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.267      
2 N -0.122      
3 O -0.326      
4 H 0.168      
5 H 0.176      
6 H 0.370      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.229 -0.100 0.000 0.250
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.608 -1.597 0.000
y -1.597 -19.619 0.000
z 0.000 0.000 -19.342
Traceless
 xyz
x 7.873 -1.597 0.000
y -1.597 -4.144 0.000
z 0.000 0.000 -3.729
Polar
3z2-r2-7.458
x2-y28.011
xy-1.597
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.582 -0.154 0.000
y -0.154 3.430 0.000
z 0.000 0.000 2.453


<r2> (average value of r2) Å2
<r2> 40.562
(<r2>)1/2 6.369