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: MP3=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-169.471307
Energy at 298.15K-169.475269
HF Energy-168.861984
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 MP3=FULL/6-31G(2df,p)
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' 3951 3951 87.10      
2 A' 3333 3333 2.60      
3 A' 3204 3204 1.84      
4 A' 1762 1762 1.28      
5 A' 1495 1495 24.87      
6 A' 1405 1405 74.92      
7 A' 1227 1227 13.34      
8 A' 1001 1001 89.81      
9 A' 546 546 7.04      
10 A" 1001 1001 30.95      
11 A" 824 824 3.91      
12 A" 424 424 129.16      

Unscaled Zero Point Vibrational Energy (zpe) 10086.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10086.8 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 MP3=FULL/6-31G(2df,p)
ABC
2.32964 0.40215 0.34295

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.131 -0.039 0.000
N2 0.000 0.534 0.000
O3 -1.027 -0.393 0.000
H4 1.236 -1.117 0.000
H5 2.000 0.599 0.000
H6 -1.809 0.157 0.000

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.26782.18651.08361.07842.9462
N21.26781.38312.06292.00141.8476
O32.18651.38312.37623.18540.9556
H41.08362.06292.37621.87883.3008
H51.07842.00143.18541.87883.8347
H62.94621.84760.95563.30083.8347

picture of formaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 111.070 N2 C1 H4 122.442
N2 C1 H5 116.864 N2 O3 H6 102.846
H4 C1 H5 120.694
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability