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: B2PLYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-169.761484
Energy at 298.15K-169.765405
HF Energy-169.556919
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 B2PLYP/aug-cc-pVTZ
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' 3821 3672 93.79      
2 A' 3257 3130 2.32      
3 A' 3125 3003 5.24      
4 A' 1694 1628 5.40      
5 A' 1455 1399 12.05      
6 A' 1347 1295 79.03      
7 A' 1180 1134 10.64      
8 A' 910 874 121.11      
9 A' 535 514 6.55      
10 A" 984 945 33.72      
11 A" 801 770 6.45      
12 A" 420 404 124.64      

Unscaled Zero Point Vibrational Energy (zpe) 9764.2 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 9383.4 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 B2PLYP/aug-cc-pVTZ
ABC
2.30190 0.39540 0.33743

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.139 -0.024 0.000
N2 0.000 0.538 0.000
O3 -1.033 -0.411 0.000
H4 1.259 -1.102 0.000
H5 1.996 0.631 0.000
H6 -1.825 0.136 0.000

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.26982.20581.08501.07902.9678
N21.26981.40302.06771.99831.8687
O32.20581.40302.39353.20340.9625
H41.08502.06772.39351.88373.3227
H51.07901.99833.20341.88373.8530
H62.96781.86870.96253.32273.8530

picture of formaldoxime state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 111.135 N2 C1 H4 122.624
N2 C1 H5 116.350 N2 O3 H6 102.774
H4 C1 H5 121.027
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.629      
2 N -0.190      
3 O -0.280      
4 H 0.447      
5 H 0.472      
6 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.382 -0.150 0.000 0.410
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.099 -1.434 0.000
y -1.434 -19.735 0.000
z 0.000 0.000 -19.413
Traceless
 xyz
x 7.475 -1.434 0.000
y -1.434 -3.979 0.000
z 0.000 0.000 -3.496
Polar
3z2-r2-6.991
x2-y27.636
xy-1.434
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.990 -0.026 0.000
y -0.026 3.899 0.000
z 0.000 0.000 3.038


<r2> (average value of r2) Å2
<r2> 40.899
(<r2>)1/2 6.395