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: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-169.633287
Energy at 298.15K-169.637181
HF Energy-169.633287
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3651 3629 77.22      
2 A' 3170 3151 4.54      
3 A' 3022 3005 7.47      
4 A' 1648 1639 7.42      
5 A' 1381 1373 23.85      
6 A' 1303 1296 70.03      
7 A' 1127 1120 15.07      
8 A' 914 908 118.34      
9 A' 513 510 5.32      
10 A" 895 890 28.99      
11 A" 774 770 12.48      
12 A" 459 456 109.05      

Unscaled Zero Point Vibrational Energy (zpe) 9427.9 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 9373.3 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 PBEPBE/cc-pVDZ
ABC
2.25365 0.39140 0.33348

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.146 -0.046 0.000
N2 0.000 0.539 0.000
O3 -1.043 -0.395 0.000
H4 1.267 -1.146 0.000
H5 2.025 0.616 0.000
H6 -1.827 0.190 0.000

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.28662.21661.10691.09972.9830
N21.28661.39962.10832.02631.8605
O32.21661.39962.42923.22970.9784
H41.10692.10832.42921.91753.3708
H51.09972.02633.22971.91753.8758
H62.98301.86050.97843.37083.8758

picture of formaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 111.142 N2 C1 H4 123.303
N2 C1 H5 116.018 N2 O3 H6 101.484
H4 C1 H5 120.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.027      
2 N -0.104      
3 O -0.159      
4 H 0.025      
5 H 0.046      
6 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.144 -0.002 0.000 0.144
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.972 -1.313 0.000
y -1.313 -18.876 0.000
z 0.000 0.000 -18.632
Traceless
 xyz
x 6.783 -1.313 0.000
y -1.313 -3.574 0.000
z 0.000 0.000 -3.208
Polar
3z2-r2-6.417
x2-y26.905
xy-1.313
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.505 -0.179 0.000
y -0.179 3.064 0.000
z 0.000 0.000 1.615


<r2> (average value of r2) Å2
<r2> 40.949
(<r2>)1/2 6.399