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: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-168.799420
Energy at 298.15K-168.803416
HF Energy-168.799420
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 HF/LANL2DZ
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' 4081 3673 104.78      
2 A' 3470 3123 9.04      
3 A' 3343 3008 6.68      
4 A' 1873 1686 0.02      
5 A' 1585 1427 13.48      
6 A' 1445 1301 119.47      
7 A' 1286 1157 10.79      
8 A' 999 899 112.92      
9 A' 549 494 11.15      
10 A" 1176 1058 60.04      
11 A" 865 778 0.14      
12 A" 419 377 258.64      

Unscaled Zero Point Vibrational Energy (zpe) 10545.6 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 9490.0 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 HF/LANL2DZ
ABC
2.36623 0.38918 0.33421

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.146 -0.007 0.000
N2 0.000 0.535 0.000
O3 -1.037 -0.418 0.000
H4 1.284 -1.073 0.000
H5 1.996 0.643 0.000
H6 -1.859 0.063 0.000

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.26752.22071.07501.07063.0058
N21.26751.40822.05781.99901.9185
O32.22071.40822.41113.21300.9526
H41.07502.05782.41111.85853.3418
H51.07061.99903.21301.85853.8989
H63.00581.91850.95263.34183.8989

picture of formaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.078 N2 C1 H4 122.704
N2 C1 H5 117.263 N2 O3 H6 107.127
H4 C1 H5 120.034
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.279      
2 N 0.011      
3 O -0.567      
4 H 0.208      
5 H 0.209      
6 H 0.419      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.639 -0.019 0.000 0.640
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.890 -1.773 0.000
y -1.773 -20.273 0.000
z 0.000 0.000 -19.250
Traceless
 xyz
x 8.871 -1.773 0.000
y -1.773 -5.203 0.000
z 0.000 0.000 -3.669
Polar
3z2-r2-7.337
x2-y29.383
xy-1.773
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.261 -0.181 0.000
y -0.181 2.595 0.000
z 0.000 0.000 1.236


<r2> (average value of r2) Å2
<r2> 41.029
(<r2>)1/2 6.405