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: MP4/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-169.451971
Energy at 298.15K-169.455868
HF Energy-168.888607
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 MP4/6-311G**
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' 3882 3764        
2 A' 3258 3159        
3 A' 3120 3026        
4 A' 1657 1607        
5 A' 1458 1413        
6 A' 1353 1312        
7 A' 1183 1147        
8 A' 930 902        
9 A' 529 513        
10 A" 935 907        
11 A" 791 767        
12 A" 412 400        

Unscaled Zero Point Vibrational Energy (zpe) 9754.2 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 9458.6 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 MP4/6-311G**
ABC
2.24301 0.39451 0.33550

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.143 -0.045 0.000
N2 0.000 0.545 0.000
O3 -1.038 -0.398 0.000
H4 1.241 -1.132 0.000
H5 2.017 0.600 0.000
H6 -1.814 0.169 0.000

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.28652.20991.09211.08572.9647
N21.28651.40242.08682.01791.8520
O32.20991.40242.39493.21410.9607
H41.09212.08682.39491.89803.3206
H51.08572.01793.21411.89803.8548
H62.96471.85200.96073.32063.8548

picture of formaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.471 N2 C1 H4 122.428
N2 C1 H5 116.304 N2 O3 H6 101.570
H4 C1 H5 121.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability