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: QCISD/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 QCISD/6-31+G**
 hartrees
Energy at 0K-169.375179
Energy at 298.15K-169.379065
HF Energy-168.854680
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 QCISD/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' 3884 3672 81.48      
2 A' 3328 3146 4.01      
3 A' 3197 3022 4.35      
4 A' 1730 1636 1.30      
5 A' 1482 1401 9.45      
6 A' 1369 1294 84.06      
7 A' 1202 1136 7.77      
8 A' 928 877 98.98      
9 A' 537 507 6.80      
10 A" 988 934 37.86      
11 A" 793 750 4.79      
12 A" 387 366 154.20      

Unscaled Zero Point Vibrational Energy (zpe) 9911.4 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 9370.2 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 QCISD/6-31+G**
ABC
2.23127 0.39377 0.33470

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.142 -0.030 0.000
N2 0.000 0.551 0.000
O3 -1.034 -0.413 0.000
H4 1.248 -1.110 0.000
H5 2.010 0.613 0.000
H6 -1.833 0.129 0.000

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.28112.20971.08541.08012.9791
N21.28111.41382.07772.01071.8809
O32.20971.41382.38663.21240.9650
H41.08542.07772.38661.88403.3209
H51.08012.01073.21241.88403.8730
H62.97911.88090.96503.32093.8730

picture of formaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.060 N2 C1 H4 122.580
N2 C1 H5 116.500 N2 O3 H6 102.861
H4 C1 H5 120.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability