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All results from a given calculation for H2NO (nitroxide)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B1
1 2 no CS 2A'

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-130.787134
Energy at 298.15K-130.789103
HF Energy-130.431510
Nuclear repulsion energy35.369019
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 MP2/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3510 3336 10.07      
2 A1 1719 1634 17.19      
3 A1 1523 1447 18.14      
4 B1 99 94 186.01      
5 B2 3656 3474 8.21      
6 B2 1302 1237 1.17      

Unscaled Zero Point Vibrational Energy (zpe) 5904.7 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 5610.6 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 MP2/6-311G**
ABC
10.92032 1.15885 1.04767

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.534
O2 0.000 0.000 0.728
H3 0.000 0.875 -1.045
H4 0.000 -0.875 -1.045

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.26241.01331.0133
O21.26241.97741.9774
H31.01331.97741.7503
H41.01331.97741.7503

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.273 O2 N1 H4 120.273
H3 N1 H4 119.455
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-130.787134
Energy at 298.15K-130.789103
HF Energy-130.431510
Nuclear repulsion energy35.369129
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 MP2/6-311G**
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' 3510 3336 10.07      
2 A' 1719 1634 17.19      
3 A' 1523 1447 18.14      
4 A' 99 94 186.01      
5 A" 3656 3474 8.20      
6 A" 1302 1237 1.17      

Unscaled Zero Point Vibrational Energy (zpe) 5904.7 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 5610.6 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 MP2/6-311G**
ABC
10.92055 1.15885 1.04767

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.534 0.000
O2 0.000 -0.728 0.000
H3 -0.000 1.045 0.875
H4 -0.000 1.045 -0.875

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.26241.01331.0133
O21.26241.97741.9774
H31.01331.97741.7502
H41.01331.97741.7502

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.273 O2 N1 H4 120.273
H3 N1 H4 119.453
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability